primer commit probando arduino, va el .ino de sensor de temperatura y humedad

README.md

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+# playing with arduino

arduino-daemon.py

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+#! /usr/bin/python3
+
+# haha, "daemon" :D
+# aquí iré metiendo la lectura de datos y guardado en algún sitio
+
+import serial
+ser = serial.Serial("/dev/ttyACM0", 9600)  # 9600 bauds
+while True:
+	print(ser.readline())

libraries/DHT_sensor_library/DHT.cpp

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+/* DHT library
+
+MIT license
+written by Adafruit Industries
+*/
+
+#include "DHT.h"
+
+#define MIN_INTERVAL 2000
+
+DHT::DHT(uint8_t pin, uint8_t type, uint8_t count) {
+  _pin = pin;
+  _type = type;
+  #ifdef __AVR
+    _bit = digitalPinToBitMask(pin);
+    _port = digitalPinToPort(pin);
+  #endif
+  _maxcycles = microsecondsToClockCycles(1000);  // 1 millisecond timeout for
+                                                 // reading pulses from DHT sensor.
+  // Note that count is now ignored as the DHT reading algorithm adjusts itself
+  // basd on the speed of the processor.
+}
+
+void DHT::begin(void) {
+  // set up the pins!
+  pinMode(_pin, INPUT_PULLUP);
+  // Using this value makes sure that millis() - lastreadtime will be
+  // >= MIN_INTERVAL right away. Note that this assignment wraps around,
+  // but so will the subtraction.
+  _lastreadtime = -MIN_INTERVAL;
+  DEBUG_PRINT("Max clock cycles: "); DEBUG_PRINTLN(_maxcycles, DEC);
+}
+
+//boolean S == Scale.  True == Fahrenheit; False == Celcius
+float DHT::readTemperature(bool S, bool force) {
+  float f = NAN;
+
+  if (read(force)) {
+    switch (_type) {
+    case DHT11:
+      f = data[2];
+      if(S) {
+        f = convertCtoF(f);
+      }
+      break;
+    case DHT22:
+    case DHT21:
+      f = data[2] & 0x7F;
+      f *= 256;
+      f += data[3];
+      f *= 0.1;
+      if (data[2] & 0x80) {
+        f *= -1;
+      }
+      if(S) {
+        f = convertCtoF(f);
+      }
+      break;
+    }
+  }
+  return f;
+}
+
+float DHT::convertCtoF(float c) {
+  return c * 1.8 + 32;
+}
+
+float DHT::convertFtoC(float f) {
+  return (f - 32) * 0.55555;
+}
+
+float DHT::readHumidity(bool force) {
+  float f = NAN;
+  if (read()) {
+    switch (_type) {
+    case DHT11:
+      f = data[0];
+      break;
+    case DHT22:
+    case DHT21:
+      f = data[0];
+      f *= 256;
+      f += data[1];
+      f *= 0.1;
+      break;
+    }
+  }
+  return f;
+}
+
+//boolean isFahrenheit: True == Fahrenheit; False == Celcius
+float DHT::computeHeatIndex(float temperature, float percentHumidity, bool isFahrenheit) {
+  // Using both Rothfusz and Steadman's equations
+  // http://www.wpc.ncep.noaa.gov/html/heatindex_equation.shtml
+  float hi;
+
+  if (!isFahrenheit)
+    temperature = convertCtoF(temperature);
+
+  hi = 0.5 * (temperature + 61.0 + ((temperature - 68.0) * 1.2) + (percentHumidity * 0.094));
+
+  if (hi > 79) {
+    hi = -42.379 +
+             2.04901523 * temperature +
+            10.14333127 * percentHumidity +
+            -0.22475541 * temperature*percentHumidity +
+            -0.00683783 * pow(temperature, 2) +
+            -0.05481717 * pow(percentHumidity, 2) +
+             0.00122874 * pow(temperature, 2) * percentHumidity +
+             0.00085282 * temperature*pow(percentHumidity, 2) +
+            -0.00000199 * pow(temperature, 2) * pow(percentHumidity, 2);
+
+    if((percentHumidity < 13) && (temperature >= 80.0) && (temperature <= 112.0))
+      hi -= ((13.0 - percentHumidity) * 0.25) * sqrt((17.0 - abs(temperature - 95.0)) * 0.05882);
+
+    else if((percentHumidity > 85.0) && (temperature >= 80.0) && (temperature <= 87.0))
+      hi += ((percentHumidity - 85.0) * 0.1) * ((87.0 - temperature) * 0.2);
+  }
+
+  return isFahrenheit ? hi : convertFtoC(hi);
+}
+
+boolean DHT::read(bool force) {
+  // Check if sensor was read less than two seconds ago and return early
+  // to use last reading.
+  uint32_t currenttime = millis();
+  if (!force && ((currenttime - _lastreadtime) < 2000)) {
+    return _lastresult; // return last correct measurement
+  }
+  _lastreadtime = currenttime;
+
+  // Reset 40 bits of received data to zero.
+  data[0] = data[1] = data[2] = data[3] = data[4] = 0;
+
+  // Send start signal.  See DHT datasheet for full signal diagram:
+  //   http://www.adafruit.com/datasheets/Digital%20humidity%20and%20temperature%20sensor%20AM2302.pdf
+
+  // Go into high impedence state to let pull-up raise data line level and
+  // start the reading process.
+  digitalWrite(_pin, HIGH);
+  delay(250);
+
+  // First set data line low for 20 milliseconds.
+  pinMode(_pin, OUTPUT);
+  digitalWrite(_pin, LOW);
+  delay(20);
+
+  uint32_t cycles[80];
+  {
+    // Turn off interrupts temporarily because the next sections are timing critical
+    // and we don't want any interruptions.
+    InterruptLock lock;
+
+    // End the start signal by setting data line high for 40 microseconds.
+    digitalWrite(_pin, HIGH);
+    delayMicroseconds(40);
+
+    // Now start reading the data line to get the value from the DHT sensor.
+    pinMode(_pin, INPUT_PULLUP);
+    delayMicroseconds(10);  // Delay a bit to let sensor pull data line low.
+
+    // First expect a low signal for ~80 microseconds followed by a high signal
+    // for ~80 microseconds again.
+    if (expectPulse(LOW) == 0) {
+      DEBUG_PRINTLN(F("Timeout waiting for start signal low pulse."));
+      _lastresult = false;
+      return _lastresult;
+    }
+    if (expectPulse(HIGH) == 0) {
+      DEBUG_PRINTLN(F("Timeout waiting for start signal high pulse."));
+      _lastresult = false;
+      return _lastresult;
+    }
+
+    // Now read the 40 bits sent by the sensor.  Each bit is sent as a 50
+    // microsecond low pulse followed by a variable length high pulse.  If the
+    // high pulse is ~28 microseconds then it's a 0 and if it's ~70 microseconds
+    // then it's a 1.  We measure the cycle count of the initial 50us low pulse
+    // and use that to compare to the cycle count of the high pulse to determine
+    // if the bit is a 0 (high state cycle count < low state cycle count), or a
+    // 1 (high state cycle count > low state cycle count). Note that for speed all
+    // the pulses are read into a array and then examined in a later step.
+    for (int i=0; i<80; i+=2) {
+      cycles[i]   = expectPulse(LOW);
+      cycles[i+1] = expectPulse(HIGH);
+    }
+  } // Timing critical code is now complete.
+
+  // Inspect pulses and determine which ones are 0 (high state cycle count < low
+  // state cycle count), or 1 (high state cycle count > low state cycle count).
+  for (int i=0; i<40; ++i) {
+    uint32_t lowCycles  = cycles[2*i];
+    uint32_t highCycles = cycles[2*i+1];
+    if ((lowCycles == 0) || (highCycles == 0)) {
+      DEBUG_PRINTLN(F("Timeout waiting for pulse."));
+      _lastresult = false;
+      return _lastresult;
+    }
+    data[i/8] <<= 1;
+    // Now compare the low and high cycle times to see if the bit is a 0 or 1.
+    if (highCycles > lowCycles) {
+      // High cycles are greater than 50us low cycle count, must be a 1.
+      data[i/8] |= 1;
+    }
+    // Else high cycles are less than (or equal to, a weird case) the 50us low
+    // cycle count so this must be a zero.  Nothing needs to be changed in the
+    // stored data.
+  }
+
+  DEBUG_PRINTLN(F("Received:"));
+  DEBUG_PRINT(data[0], HEX); DEBUG_PRINT(F(", "));
+  DEBUG_PRINT(data[1], HEX); DEBUG_PRINT(F(", "));
+  DEBUG_PRINT(data[2], HEX); DEBUG_PRINT(F(", "));
+  DEBUG_PRINT(data[3], HEX); DEBUG_PRINT(F(", "));
+  DEBUG_PRINT(data[4], HEX); DEBUG_PRINT(F(" =? "));
+  DEBUG_PRINTLN((data[0] + data[1] + data[2] + data[3]) & 0xFF, HEX);
+
+  // Check we read 40 bits and that the checksum matches.
+  if (data[4] == ((data[0] + data[1] + data[2] + data[3]) & 0xFF)) {
+    _lastresult = true;
+    return _lastresult;
+  }
+  else {
+    DEBUG_PRINTLN(F("Checksum failure!"));
+    _lastresult = false;
+    return _lastresult;
+  }
+}
+
+// Expect the signal line to be at the specified level for a period of time and
+// return a count of loop cycles spent at that level (this cycle count can be
+// used to compare the relative time of two pulses).  If more than a millisecond
+// ellapses without the level changing then the call fails with a 0 response.
+// This is adapted from Arduino's pulseInLong function (which is only available
+// in the very latest IDE versions):
+//   https://github.com/arduino/Arduino/blob/master/hardware/arduino/avr/cores/arduino/wiring_pulse.c
+uint32_t DHT::expectPulse(bool level) {
+  uint32_t count = 0;
+  // On AVR platforms use direct GPIO port access as it's much faster and better
+  // for catching pulses that are 10's of microseconds in length:
+  #ifdef __AVR
+    uint8_t portState = level ? _bit : 0;
+    while ((*portInputRegister(_port) & _bit) == portState) {
+      if (count++ >= _maxcycles) {
+        return 0; // Exceeded timeout, fail.
+      }
+    }
+  // Otherwise fall back to using digitalRead (this seems to be necessary on ESP8266
+  // right now, perhaps bugs in direct port access functions?).
+  #else
+    while (digitalRead(_pin) == level) {
+      if (count++ >= _maxcycles) {
+        return 0; // Exceeded timeout, fail.
+      }
+    }
+  #endif
+
+  return count;
+}

libraries/DHT_sensor_library/DHT.h

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+/* DHT library
+
+MIT license
+written by Adafruit Industries
+*/
+#ifndef DHT_H
+#define DHT_H
+
+#if ARDUINO >= 100
+ #include "Arduino.h"
+#else
+ #include "WProgram.h"
+#endif
+
+
+// Uncomment to enable printing out nice debug messages.
+//#define DHT_DEBUG
+
+// Define where debug output will be printed.
+#define DEBUG_PRINTER Serial
+
+// Setup debug printing macros.
+#ifdef DHT_DEBUG
+  #define DEBUG_PRINT(...) { DEBUG_PRINTER.print(__VA_ARGS__); }
+  #define DEBUG_PRINTLN(...) { DEBUG_PRINTER.println(__VA_ARGS__); }
+#else
+  #define DEBUG_PRINT(...) {}
+  #define DEBUG_PRINTLN(...) {}
+#endif
+
+// Define types of sensors.
+#define DHT11 11
+#define DHT22 22
+#define DHT21 21
+#define AM2301 21
+
+
+class DHT {
+  public:
+   DHT(uint8_t pin, uint8_t type, uint8_t count=6);
+   void begin(void);
+   float readTemperature(bool S=false, bool force=false);
+   float convertCtoF(float);
+   float convertFtoC(float);
+   float computeHeatIndex(float temperature, float percentHumidity, bool isFahrenheit=true);
+   float readHumidity(bool force=false);
+   boolean read(bool force=false);
+
+ private:
+  uint8_t data[5];
+  uint8_t _pin, _type;
+  #ifdef __AVR
+    // Use direct GPIO access on an 8-bit AVR so keep track of the port and bitmask
+    // for the digital pin connected to the DHT.  Other platforms will use digitalRead.
+    uint8_t _bit, _port;
+  #endif
+  uint32_t _lastreadtime, _maxcycles;
+  bool _lastresult;
+
+  uint32_t expectPulse(bool level);
+
+};
+
+class InterruptLock {
+  public:
+   InterruptLock() {
+    noInterrupts();
+   }
+   ~InterruptLock() {
+    interrupts();
+   }
+
+};
+
+#endif

libraries/DHT_sensor_library/README.md

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+This is an Arduino library for the DHT series of low cost temperature/humidity sensors. 
+
+Tutorial: https://learn.adafruit.com/dht
+
+To download. click the DOWNLOADS button in the top right corner, rename the uncompressed folder DHT. Check that the DHT folder contains DHT.cpp and DHT.h. Place the DHT library folder your <arduinosketchfolder>/libraries/ folder. You may need to create the libraries subfolder if its your first library. Restart the IDE.

libraries/DHT_sensor_library/examples/DHTtester/DHTtester.ino

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+// Example testing sketch for various DHT humidity/temperature sensors
+// Written by ladyada, public domain
+
+#include "DHT.h"
+
+#define DHTPIN 2     // what digital pin we're connected to
+
+// Uncomment whatever type you're using!
+//#define DHTTYPE DHT11   // DHT 11
+#define DHTTYPE DHT22   // DHT 22  (AM2302), AM2321
+//#define DHTTYPE DHT21   // DHT 21 (AM2301)
+
+// Connect pin 1 (on the left) of the sensor to +5V
+// NOTE: If using a board with 3.3V logic like an Arduino Due connect pin 1
+// to 3.3V instead of 5V!
+// Connect pin 2 of the sensor to whatever your DHTPIN is
+// Connect pin 4 (on the right) of the sensor to GROUND
+// Connect a 10K resistor from pin 2 (data) to pin 1 (power) of the sensor
+
+// Initialize DHT sensor.
+// Note that older versions of this library took an optional third parameter to
+// tweak the timings for faster processors.  This parameter is no longer needed
+// as the current DHT reading algorithm adjusts itself to work on faster procs.
+DHT dht(DHTPIN, DHTTYPE);
+
+void setup() {
+  Serial.begin(9600);
+  Serial.println("DHTxx test!");
+
+  dht.begin();
+}
+
+void loop() {
+  // Wait a few seconds between measurements.
+  delay(2000);
+
+  // Reading temperature or humidity takes about 250 milliseconds!
+  // Sensor readings may also be up to 2 seconds 'old' (its a very slow sensor)
+  float h = dht.readHumidity();
+  // Read temperature as Celsius (the default)
+  float t = dht.readTemperature();
+  // Read temperature as Fahrenheit (isFahrenheit = true)
+  float f = dht.readTemperature(true);
+
+  // Check if any reads failed and exit early (to try again).
+  if (isnan(h) || isnan(t) || isnan(f)) {
+    Serial.println("Failed to read from DHT sensor!");
+    return;
+  }
+
+  // Compute heat index in Fahrenheit (the default)
+  float hif = dht.computeHeatIndex(f, h);
+  // Compute heat index in Celsius (isFahreheit = false)
+  float hic = dht.computeHeatIndex(t, h, false);
+
+  Serial.print("Humidity: ");
+  Serial.print(h);
+  Serial.print(" %\t");
+  Serial.print("Temperature: ");
+  Serial.print(t);
+  Serial.print(" *C ");
+  Serial.print(f);
+  Serial.print(" *F\t");
+  Serial.print("Heat index: ");
+  Serial.print(hic);
+  Serial.print(" *C ");
+  Serial.print(hif);
+  Serial.println(" *F");
+}

libraries/DHT_sensor_library/keywords.txt

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+###########################################
+# Syntax Coloring Map For DHT-sensor-library
+###########################################
+
+###########################################
+# Datatypes (KEYWORD1)
+###########################################
+
+DHT	KEYWORD1
+
+###########################################
+# Methods and Functions (KEYWORD2)
+###########################################
+
+begin KEYWORD2
+readTemperature KEYWORD2
+convertCtoF KEYWORD2
+convertFtoC KEYWORD2
+computeHeatIndex KEYWORD2
+readHumidity KEYWORD2
+read KEYWORD2
+

libraries/DHT_sensor_library/library.properties

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+name=DHT sensor library
+version=1.2.3
+author=Adafruit
+maintainer=Adafruit <info@adafruit.com>
+sentence=Arduino library for DHT11, DHT22, etc Temp & Humidity Sensors
+paragraph=Arduino library for DHT11, DHT22, etc Temp & Humidity Sensors
+category=Sensors
+url=https://github.com/adafruit/DHT-sensor-library
+architectures=*

libraries/DallasTemperature/.gitignore

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+.idea
+classes
+target
+out
+build
+*.iml
+*.ipr
+*.iws
+*.log
+*.war
+.idea
+.project
+.classpath
+.settings
+.gradle
+

libraries/DallasTemperature/DallasTemperature.cpp

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+// This library is free software; you can redistribute it and/or
+// modify it under the terms of the GNU Lesser General Public
+// License as published by the Free Software Foundation; either
+// version 2.1 of the License, or (at your option) any later version.
+
+// Version 3.7.2 modified on Dec 6, 2011 to support Arduino 1.0
+// See Includes...
+// Modified by Jordan Hochenbaum
+
+#include "DallasTemperature.h"
+
+
+#if ARDUINO >= 100
+#include "Arduino.h"
+#else
+extern "C" {
+#include "WConstants.h"
+}
+#endif
+
+DallasTemperature::DallasTemperature() {}
+DallasTemperature::DallasTemperature(OneWire* _oneWire)
+
+#if REQUIRESALARMS
+: _AlarmHandler(&defaultAlarmHandler)
+#endif
+{
+    setOneWire(_oneWire);
+}
+
+bool DallasTemperature::validFamily(const uint8_t* deviceAddress){
+    switch (deviceAddress[0]){
+        case DS18S20MODEL:
+        case DS18B20MODEL:
+        case DS1822MODEL:
+        case DS1825MODEL:
+            return true;
+        default:
+            return false;
+    }
+}
+
+void DallasTemperature::setOneWire(OneWire* _oneWire){
+
+    _wire = _oneWire;
+    devices = 0;
+    parasite = false;
+    bitResolution = 9;
+    waitForConversion = true;
+    checkForConversion = true;
+
+}
+
+// initialise the bus
+void DallasTemperature::begin(void){
+
+    DeviceAddress deviceAddress;
+
+    _wire->reset_search();
+    devices = 0; // Reset the number of devices when we enumerate wire devices
+
+    while (_wire->search(deviceAddress)){
+
+        if (validAddress(deviceAddress)){
+
+            if (!parasite && readPowerSupply(deviceAddress)) parasite = true;
+
+            ScratchPad scratchPad;
+
+            readScratchPad(deviceAddress, scratchPad);
+
+            bitResolution = max(bitResolution, getResolution(deviceAddress));
+
+            devices++;
+        }
+    }
+
+}
+
+// returns the number of devices found on the bus
+uint8_t DallasTemperature::getDeviceCount(void){
+    return devices;
+}
+
+// returns true if address is valid
+bool DallasTemperature::validAddress(const uint8_t* deviceAddress){
+    return (_wire->crc8(deviceAddress, 7) == deviceAddress[7]);
+}
+
+// finds an address at a given index on the bus
+// returns true if the device was found
+bool DallasTemperature::getAddress(uint8_t* deviceAddress, uint8_t index){
+
+    uint8_t depth = 0;
+
+    _wire->reset_search();
+
+    while (depth <= index && _wire->search(deviceAddress)) {
+        if (depth == index && validAddress(deviceAddress)) return true;
+        depth++;
+    }
+
+    return false;
+
+}
+
+// attempt to determine if the device at the given address is connected to the bus
+bool DallasTemperature::isConnected(const uint8_t* deviceAddress){
+
+    ScratchPad scratchPad;
+    return isConnected(deviceAddress, scratchPad);
+
+}
+
+// attempt to determine if the device at the given address is connected to the bus
+// also allows for updating the read scratchpad
+bool DallasTemperature::isConnected(const uint8_t* deviceAddress, uint8_t* scratchPad)
+{
+    bool b = readScratchPad(deviceAddress, scratchPad);
+    return b && (_wire->crc8(scratchPad, 8) == scratchPad[SCRATCHPAD_CRC]);
+}
+
+bool DallasTemperature::readScratchPad(const uint8_t* deviceAddress, uint8_t* scratchPad){
+
+    // send the reset command and fail fast
+    int b = _wire->reset();
+    if (b == 0) return false;
+
+    _wire->select(deviceAddress);
+    _wire->write(READSCRATCH);
+
+    // Read all registers in a simple loop
+    // byte 0: temperature LSB
+    // byte 1: temperature MSB
+    // byte 2: high alarm temp
+    // byte 3: low alarm temp
+    // byte 4: DS18S20: store for crc
+    //         DS18B20 & DS1822: configuration register
+    // byte 5: internal use & crc
+    // byte 6: DS18S20: COUNT_REMAIN
+    //         DS18B20 & DS1822: store for crc
+    // byte 7: DS18S20: COUNT_PER_C
+    //         DS18B20 & DS1822: store for crc
+    // byte 8: SCRATCHPAD_CRC
+    for(uint8_t i = 0; i < 9; i++){
+        scratchPad[i] = _wire->read();
+    }
+
+    b = _wire->reset();
+    return (b == 1);
+}
+
+
+void DallasTemperature::writeScratchPad(const uint8_t* deviceAddress, const uint8_t* scratchPad){
+
+    _wire->reset();
+    _wire->select(deviceAddress);
+    _wire->write(WRITESCRATCH);
+    _wire->write(scratchPad[HIGH_ALARM_TEMP]); // high alarm temp
+    _wire->write(scratchPad[LOW_ALARM_TEMP]); // low alarm temp
+
+    // DS1820 and DS18S20 have no configuration register
+    if (deviceAddress[0] != DS18S20MODEL) _wire->write(scratchPad[CONFIGURATION]);
+
+    _wire->reset();
+    _wire->select(deviceAddress);
+
+    // save the newly written values to eeprom
+    _wire->write(COPYSCRATCH, parasite);
+    delay(20);  // <--- added 20ms delay to allow 10ms long EEPROM write operation (as specified by datasheet)
+
+    if (parasite) delay(10); // 10ms delay
+    _wire->reset();
+
+}
+
+bool DallasTemperature::readPowerSupply(const uint8_t* deviceAddress){
+
+    bool ret = false;
+    _wire->reset();
+    _wire->select(deviceAddress);
+    _wire->write(READPOWERSUPPLY);
+    if (_wire->read_bit() == 0) ret = true;
+    _wire->reset();
+    return ret;
+
+}
+
+
+// set resolution of all devices to 9, 10, 11, or 12 bits
+// if new resolution is out of range, it is constrained.
+void DallasTemperature::setResolution(uint8_t newResolution){
+
+    bitResolution = constrain(newResolution, 9, 12);
+    DeviceAddress deviceAddress;
+    for (int i=0; i<devices; i++)
+    {
+        getAddress(deviceAddress, i);
+        setResolution(deviceAddress, bitResolution);
+    }
+
+}
+
+// set resolution of a device to 9, 10, 11, or 12 bits
+// if new resolution is out of range, 9 bits is used.
+bool DallasTemperature::setResolution(const uint8_t* deviceAddress, uint8_t newResolution){
+
+    ScratchPad scratchPad;
+    if (isConnected(deviceAddress, scratchPad)){
+
+        // DS1820 and DS18S20 have no resolution configuration register
+        if (deviceAddress[0] != DS18S20MODEL){
+
+            switch (newResolution){
+            case 12:
+                scratchPad[CONFIGURATION] = TEMP_12_BIT;
+                break;
+            case 11:
+                scratchPad[CONFIGURATION] = TEMP_11_BIT;
+                break;
+            case 10:
+                scratchPad[CONFIGURATION] = TEMP_10_BIT;
+                break;
+            case 9:
+            default:
+                scratchPad[CONFIGURATION] = TEMP_9_BIT;
+                break;
+            }
+            writeScratchPad(deviceAddress, scratchPad);
+        }
+        return true;  // new value set
+    }
+
+    return false;
+
+}
+
+// returns the global resolution
+uint8_t DallasTemperature::getResolution(){
+    return bitResolution;
+}
+
+// returns the current resolution of the device, 9-12
+// returns 0 if device not found
+uint8_t DallasTemperature::getResolution(const uint8_t* deviceAddress){
+
+    // DS1820 and DS18S20 have no resolution configuration register
+    if (deviceAddress[0] == DS18S20MODEL) return 12;
+
+    ScratchPad scratchPad;
+    if (isConnected(deviceAddress, scratchPad))
+    {
+        switch (scratchPad[CONFIGURATION])
+        {
+        case TEMP_12_BIT:
+            return 12;
+
+        case TEMP_11_BIT:
+            return 11;
+
+        case TEMP_10_BIT:
+            return 10;
+
+        case TEMP_9_BIT:
+            return 9;
+        }
+    }
+    return 0;
+
+}
+
+
+// sets the value of the waitForConversion flag
+// TRUE : function requestTemperature() etc returns when conversion is ready
+// FALSE: function requestTemperature() etc returns immediately (USE WITH CARE!!)
+//        (1) programmer has to check if the needed delay has passed
+//        (2) but the application can do meaningful things in that time
+void DallasTemperature::setWaitForConversion(bool flag){
+    waitForConversion = flag;
+}
+
+// gets the value of the waitForConversion flag
+bool DallasTemperature::getWaitForConversion(){
+    return waitForConversion;
+}
+
+
+// sets the value of the checkForConversion flag
+// TRUE : function requestTemperature() etc will 'listen' to an IC to determine whether a conversion is complete
+// FALSE: function requestTemperature() etc will wait a set time (worst case scenario) for a conversion to complete
+void DallasTemperature::setCheckForConversion(bool flag){
+    checkForConversion = flag;
+}
+
+// gets the value of the waitForConversion flag
+bool DallasTemperature::getCheckForConversion(){
+    return checkForConversion;
+}
+
+bool DallasTemperature::isConversionAvailable(const uint8_t* deviceAddress){
+
+    // Check if the clock has been raised indicating the conversion is complete
+    ScratchPad scratchPad;
+    readScratchPad(deviceAddress, scratchPad);
+    return scratchPad[0];
+
+}
+
+// sends command for all devices on the bus to perform a temperature conversion
+void DallasTemperature::requestTemperatures(){
+
+    _wire->reset();
+    _wire->skip();
+    _wire->write(STARTCONVO, parasite);
+
+    // ASYNC mode?
+    if (!waitForConversion) return;
+    blockTillConversionComplete(bitResolution, NULL);
+
+}
+
+// sends command for one device to perform a temperature by address
+// returns FALSE if device is disconnected
+// returns TRUE  otherwise
+bool DallasTemperature::requestTemperaturesByAddress(const uint8_t* deviceAddress){
+
+    uint8_t bitResolution = getResolution(deviceAddress);
+    if (bitResolution == 0){
+     return false; //Device disconnected
+    }
+
+    if (_wire->reset() == 0){
+        return false;
+    }
+
+    _wire->select(deviceAddress);
+    _wire->write(STARTCONVO, parasite);
+
+
+    // ASYNC mode?
+    if (!waitForConversion) return true;
+
+    blockTillConversionComplete(bitResolution, deviceAddress);
+
+    return true;
+
+}
+
+
+// Continue to check if the IC has responded with a temperature
+void DallasTemperature::blockTillConversionComplete(uint8_t bitResolution, const uint8_t* deviceAddress){
+    
+    int delms = millisToWaitForConversion(bitResolution);
+    if (deviceAddress != NULL && checkForConversion && !parasite){
+        unsigned long now = millis();
+        while(!isConversionAvailable(deviceAddress) && (millis() - delms < now));
+    } else {
+        delay(delms);
+    }
+    
+}
+
+// returns number of milliseconds to wait till conversion is complete (based on IC datasheet)
+int16_t DallasTemperature::millisToWaitForConversion(uint8_t bitResolution){
+
+    switch (bitResolution){
+    case 9:
+        return 94;
+    case 10:
+        return 188;
+    case 11:
+        return 375;
+    default:
+        return 750;
+    }
+
+}
+
+
+// sends command for one device to perform a temp conversion by index
+bool DallasTemperature::requestTemperaturesByIndex(uint8_t deviceIndex){
+
+    DeviceAddress deviceAddress;
+    getAddress(deviceAddress, deviceIndex);
+
+    return requestTemperaturesByAddress(deviceAddress);
+
+}
+
+// Fetch temperature for device index
+float DallasTemperature::getTempCByIndex(uint8_t deviceIndex){
+
+    DeviceAddress deviceAddress;
+    if (!getAddress(deviceAddress, deviceIndex)){
+        return DEVICE_DISCONNECTED_C;
+    }
+
+    return getTempC((uint8_t*)deviceAddress);
+
+}
+
+// Fetch temperature for device index
+float DallasTemperature::getTempFByIndex(uint8_t deviceIndex){
+
+    DeviceAddress deviceAddress;
+
+    if (!getAddress(deviceAddress, deviceIndex)){
+        return DEVICE_DISCONNECTED_F;
+    }
+
+    return getTempF((uint8_t*)deviceAddress);
+
+}
+
+// reads scratchpad and returns fixed-point temperature, scaling factor 2^-7
+int16_t DallasTemperature::calculateTemperature(const uint8_t* deviceAddress, uint8_t* scratchPad){
+
+    int16_t fpTemperature =
+    (((int16_t) scratchPad[TEMP_MSB]) << 11) |
+    (((int16_t) scratchPad[TEMP_LSB]) << 3);
+
+    /*
+    DS1820 and DS18S20 have a 9-bit temperature register.
+
+    Resolutions greater than 9-bit can be calculated using the data from
+    the temperature, and COUNT REMAIN and COUNT PER °C registers in the
+    scratchpad.  The resolution of the calculation depends on the model.
+
+    While the COUNT PER °C register is hard-wired to 16 (10h) in a
+    DS18S20, it changes with temperature in DS1820.
+
+    After reading the scratchpad, the TEMP_READ value is obtained by
+    truncating the 0.5°C bit (bit 0) from the temperature data. The
+    extended resolution temperature can then be calculated using the
+    following equation:
+
+                                    COUNT_PER_C - COUNT_REMAIN
+    TEMPERATURE = TEMP_READ - 0.25 + --------------------------
+                                            COUNT_PER_C
+
+    Hagai Shatz simplified this to integer arithmetic for a 12 bits
+    value for a DS18S20, and James Cameron added legacy DS1820 support.
+
+    See - http://myarduinotoy.blogspot.co.uk/2013/02/12bit-result-from-ds18s20.html
+    */
+
+    if (deviceAddress[0] == DS18S20MODEL){
+        fpTemperature = ((fpTemperature & 0xfff0) << 3) - 16 +
+            (
+                ((scratchPad[COUNT_PER_C] - scratchPad[COUNT_REMAIN]) << 7) /
+                  scratchPad[COUNT_PER_C]
+            );
+    }
+
+    return fpTemperature;
+}
+
+
+// returns temperature in 1/128 degrees C or DEVICE_DISCONNECTED_RAW if the
+// device's scratch pad cannot be read successfully.
+// the numeric value of DEVICE_DISCONNECTED_RAW is defined in
+// DallasTemperature.h. It is a large negative number outside the
+// operating range of the device
+int16_t DallasTemperature::getTemp(const uint8_t* deviceAddress){
+
+    ScratchPad scratchPad;
+    if (isConnected(deviceAddress, scratchPad)) return calculateTemperature(deviceAddress, scratchPad);
+    return DEVICE_DISCONNECTED_RAW;
+
+}
+
+// returns temperature in degrees C or DEVICE_DISCONNECTED_C if the
+// device's scratch pad cannot be read successfully.
+// the numeric value of DEVICE_DISCONNECTED_C is defined in
+// DallasTemperature.h. It is a large negative number outside the
+// operating range of the device
+float DallasTemperature::getTempC(const uint8_t* deviceAddress){
+    return rawToCelsius(getTemp(deviceAddress));
+}
+
+// returns temperature in degrees F or DEVICE_DISCONNECTED_F if the
+// device's scratch pad cannot be read successfully.
+// the numeric value of DEVICE_DISCONNECTED_F is defined in
+// DallasTemperature.h. It is a large negative number outside the
+// operating range of the device
+float DallasTemperature::getTempF(const uint8_t* deviceAddress){
+    return rawToFahrenheit(getTemp(deviceAddress));
+}
+
+// returns true if the bus requires parasite power
+bool DallasTemperature::isParasitePowerMode(void){
+    return parasite;
+}
+
+
+// IF alarm is not used one can store a 16 bit int of userdata in the alarm
+// registers. E.g. an ID of the sensor.
+// See github issue #29
+
+// note if device is not connected it will fail writing the data.
+void DallasTemperature::setUserData(const uint8_t* deviceAddress, int16_t data)
+{
+    ScratchPad scratchPad;
+    if (isConnected(deviceAddress, scratchPad))
+    {
+        scratchPad[HIGH_ALARM_TEMP] = data >> 8;
+        scratchPad[LOW_ALARM_TEMP] = data & 255;
+        writeScratchPad(deviceAddress, scratchPad);
+    }
+}
+
+int16_t DallasTemperature::getUserData(const uint8_t* deviceAddress)
+{
+    int16_t data = 0;
+    ScratchPad scratchPad;
+    if (isConnected(deviceAddress, scratchPad))
+    {
+        data = scratchPad[HIGH_ALARM_TEMP] << 8;
+        data += scratchPad[LOW_ALARM_TEMP];
+    }
+    return data;
+}
+
+// note If address cannot be found no error will be reported.
+int16_t DallasTemperature::getUserDataByIndex(uint8_t deviceIndex)
+{
+    DeviceAddress deviceAddress;
+    getAddress(deviceAddress, deviceIndex);
+    return getUserData((uint8_t*) deviceAddress);
+}
+
+void DallasTemperature::setUserDataByIndex(uint8_t deviceIndex, int16_t data)
+{
+    DeviceAddress deviceAddress;
+    getAddress(deviceAddress, deviceIndex);
+    setUserData((uint8_t*) deviceAddress, data);
+}
+
+
+// Convert float Celsius to Fahrenheit
+float DallasTemperature::toFahrenheit(float celsius){
+    return (celsius * 1.8) + 32;
+}
+
+// Convert float Fahrenheit to Celsius
+float DallasTemperature::toCelsius(float fahrenheit){
+    return (fahrenheit - 32) * 0.555555556;
+}
+
+// convert from raw to Celsius
+float DallasTemperature::rawToCelsius(int16_t raw){
+
+    if (raw <= DEVICE_DISCONNECTED_RAW)
+    return DEVICE_DISCONNECTED_C;
+    // C = RAW/128
+    return (float)raw * 0.0078125;
+
+}
+
+// convert from raw to Fahrenheit
+float DallasTemperature::rawToFahrenheit(int16_t raw){
+
+    if (raw <= DEVICE_DISCONNECTED_RAW)
+    return DEVICE_DISCONNECTED_F;
+    // C = RAW/128
+    // F = (C*1.8)+32 = (RAW/128*1.8)+32 = (RAW*0.0140625)+32
+    return ((float)raw * 0.0140625) + 32;
+
+}
+
+#if REQUIRESALARMS
+
+/*
+
+ALARMS:
+
+TH and TL Register Format
+
+BIT 7 BIT 6 BIT 5 BIT 4 BIT 3 BIT 2 BIT 1 BIT 0
+S    2^6   2^5   2^4   2^3   2^2   2^1   2^0
+
+Only bits 11 through 4 of the temperature register are used
+in the TH and TL comparison since TH and TL are 8-bit
+registers. If the measured temperature is lower than or equal
+to TL or higher than or equal to TH, an alarm condition exists
+and an alarm flag is set inside the DS18B20. This flag is
+updated after every temperature measurement; therefore, if the
+alarm condition goes away, the flag will be turned off after
+the next temperature conversion.
+
+*/
+
+// sets the high alarm temperature for a device in degrees Celsius
+// accepts a float, but the alarm resolution will ignore anything
+// after a decimal point.  valid range is -55C - 125C
+void DallasTemperature::setHighAlarmTemp(const uint8_t* deviceAddress, char celsius){
+
+    // make sure the alarm temperature is within the device's range
+    if (celsius > 125) celsius = 125;
+    else if (celsius < -55) celsius = -55;
+
+    ScratchPad scratchPad;
+    if (isConnected(deviceAddress, scratchPad)){
+        scratchPad[HIGH_ALARM_TEMP] = (uint8_t)celsius;
+        writeScratchPad(deviceAddress, scratchPad);
+    }
+
+}
+
+// sets the low alarm temperature for a device in degrees Celsius
+// accepts a float, but the alarm resolution will ignore anything
+// after a decimal point.  valid range is -55C - 125C
+void DallasTemperature::setLowAlarmTemp(const uint8_t* deviceAddress, char celsius){
+    // make sure the alarm temperature is within the device's range
+    if (celsius > 125) celsius = 125;
+    else if (celsius < -55) celsius = -55;
+
+    ScratchPad scratchPad;
+    if (isConnected(deviceAddress, scratchPad)){
+        scratchPad[LOW_ALARM_TEMP] = (uint8_t)celsius;
+        writeScratchPad(deviceAddress, scratchPad);
+    }
+
+}
+
+// returns a char with the current high alarm temperature or
+// DEVICE_DISCONNECTED for an address
+char DallasTemperature::getHighAlarmTemp(const uint8_t* deviceAddress){
+
+    ScratchPad scratchPad;
+    if (isConnected(deviceAddress, scratchPad)) return (char)scratchPad[HIGH_ALARM_TEMP];
+    return DEVICE_DISCONNECTED_C;
+
+}
+
+// returns a char with the current low alarm temperature or
+// DEVICE_DISCONNECTED for an address
+char DallasTemperature::getLowAlarmTemp(const uint8_t* deviceAddress){
+
+    ScratchPad scratchPad;
+    if (isConnected(deviceAddress, scratchPad)) return (char)scratchPad[LOW_ALARM_TEMP];
+    return DEVICE_DISCONNECTED_C;
+
+}
+
+// resets internal variables used for the alarm search
+void DallasTemperature::resetAlarmSearch(){
+
+    alarmSearchJunction = -1;
+    alarmSearchExhausted = 0;
+    for(uint8_t i = 0; i < 7; i++){
+        alarmSearchAddress[i] = 0;
+    }
+
+}
+
+// This is a modified version of the OneWire::search method.
+//
+// Also added the OneWire search fix documented here:
+// http://www.arduino.cc/cgi-bin/yabb2/YaBB.pl?num=1238032295
+//
+// Perform an alarm search. If this function returns a '1' then it has
+// enumerated the next device and you may retrieve the ROM from the
+// OneWire::address variable. If there are no devices, no further
+// devices, or something horrible happens in the middle of the
+// enumeration then a 0 is returned.  If a new device is found then
+// its address is copied to newAddr.  Use
+// DallasTemperature::resetAlarmSearch() to start over.
+bool DallasTemperature::alarmSearch(uint8_t* newAddr){
+
+    uint8_t i;
+    char lastJunction = -1;
+    uint8_t done = 1;
+
+    if (alarmSearchExhausted) return false;
+    if (!_wire->reset()) return false;
+
+    // send the alarm search command
+    _wire->write(0xEC, 0);
+
+    for(i = 0; i < 64; i++){
+
+        uint8_t a = _wire->read_bit( );
+        uint8_t nota = _wire->read_bit( );
+        uint8_t ibyte = i / 8;
+        uint8_t ibit = 1 << (i & 7);
+
+        // I don't think this should happen, this means nothing responded, but maybe if
+        // something vanishes during the search it will come up.
+        if (a && nota) return false;
+
+        if (!a && !nota){
+            if (i == alarmSearchJunction){
+                // this is our time to decide differently, we went zero last time, go one.
+                a = 1;
+                alarmSearchJunction = lastJunction;
+            }else if (i < alarmSearchJunction){
+
+                // take whatever we took last time, look in address
+                if (alarmSearchAddress[ibyte] & ibit){
+                    a = 1;
+                }else{
+                    // Only 0s count as pending junctions, we've already exhausted the 0 side of 1s
+                    a = 0;
+                    done = 0;
+                    lastJunction = i;
+                }
+            }else{
+                // we are blazing new tree, take the 0
+                a = 0;
+                alarmSearchJunction = i;
+                done = 0;
+            }
+            // OneWire search fix
+            // See: http://www.arduino.cc/cgi-bin/yabb2/YaBB.pl?num=1238032295
+        }
+
+        if (a) alarmSearchAddress[ibyte] |= ibit;
+        else alarmSearchAddress[ibyte] &= ~ibit;
+
+        _wire->write_bit(a);
+    }
+
+    if (done) alarmSearchExhausted = 1;
+    for (i = 0; i < 8; i++) newAddr[i] = alarmSearchAddress[i];
+    return true;
+
+}
+
+// returns true if device address might have an alarm condition
+// (only an alarm search can verify this)
+bool DallasTemperature::hasAlarm(const uint8_t* deviceAddress){
+
+    ScratchPad scratchPad;
+    if (isConnected(deviceAddress, scratchPad)){
+
+        char temp = calculateTemperature(deviceAddress, scratchPad) >> 7;
+
+        // check low alarm
+        if (temp <= (char)scratchPad[LOW_ALARM_TEMP]) return true;
+
+        // check high alarm
+        if (temp >= (char)scratchPad[HIGH_ALARM_TEMP]) return true;
+    }
+
+    // no alarm
+    return false;
+
+}
+
+// returns true if any device is reporting an alarm condition on the bus
+bool DallasTemperature::hasAlarm(void){
+
+    DeviceAddress deviceAddress;
+    resetAlarmSearch();
+    return alarmSearch(deviceAddress);
+
+}
+
+// runs the alarm handler for all devices returned by alarmSearch()
+void DallasTemperature::processAlarms(void){
+
+    resetAlarmSearch();
+    DeviceAddress alarmAddr;
+
+    while (alarmSearch(alarmAddr)){
+
+        if (validAddress(alarmAddr)){
+            _AlarmHandler(alarmAddr);
+        }
+
+    }
+}
+
+// sets the alarm handler
+void DallasTemperature::setAlarmHandler(AlarmHandler *handler){
+    _AlarmHandler = handler;
+}
+
+// The default alarm handler
+void DallasTemperature::defaultAlarmHandler(const uint8_t* deviceAddress){}
+
+#endif
+
+#if REQUIRESNEW
+
+// MnetCS - Allocates memory for DallasTemperature. Allows us to instance a new object
+void* DallasTemperature::operator new(unsigned int size){ // Implicit NSS obj size
+
+    void * p; // void pointer
+    p = malloc(size); // Allocate memory
+    memset((DallasTemperature*)p,0,size); // Initialise memory
+
+    //!!! CANT EXPLICITLY CALL CONSTRUCTOR - workaround by using an init() methodR - workaround by using an init() method
+    return (DallasTemperature*) p; // Cast blank region to NSS pointer
+}
+
+// MnetCS 2009 -  Free the memory used by this instance
+void DallasTemperature::operator delete(void* p){
+
+    DallasTemperature* pNss =  (DallasTemperature*) p; // Cast to NSS pointer
+    pNss->~DallasTemperature(); // Destruct the object
+
+    free(p); // Free the memory
+}
+
+#endif

libraries/DallasTemperature/DallasTemperature.h

@@ -0,0 +1,269 @@
+#ifndef DallasTemperature_h
+#define DallasTemperature_h
+
+#define DALLASTEMPLIBVERSION "3.7.3"
+
+// This library is free software; you can redistribute it and/or
+// modify it under the terms of the GNU Lesser General Public
+// License as published by the Free Software Foundation; either
+// version 2.1 of the License, or (at your option) any later version.
+
+// set to true to include code for new and delete operators
+#ifndef REQUIRESNEW
+#define REQUIRESNEW false
+#endif
+
+// set to true to include code implementing alarm search functions
+#ifndef REQUIRESALARMS
+#define REQUIRESALARMS true
+#endif
+
+#include <inttypes.h>
+#include <OneWire.h>
+
+// Model IDs
+#define DS18S20MODEL 0x10  // also DS1820
+#define DS18B20MODEL 0x28
+#define DS1822MODEL  0x22
+#define DS1825MODEL  0x3B
+
+// OneWire commands
+#define STARTCONVO      0x44  // Tells device to take a temperature reading and put it on the scratchpad
+#define COPYSCRATCH     0x48  // Copy EEPROM
+#define READSCRATCH     0xBE  // Read EEPROM
+#define WRITESCRATCH    0x4E  // Write to EEPROM
+#define RECALLSCRATCH   0xB8  // Reload from last known
+#define READPOWERSUPPLY 0xB4  // Determine if device needs parasite power
+#define ALARMSEARCH     0xEC  // Query bus for devices with an alarm condition
+
+// Scratchpad locations
+#define TEMP_LSB        0
+#define TEMP_MSB        1
+#define HIGH_ALARM_TEMP 2
+#define LOW_ALARM_TEMP  3
+#define CONFIGURATION   4
+#define INTERNAL_BYTE   5
+#define COUNT_REMAIN    6
+#define COUNT_PER_C     7
+#define SCRATCHPAD_CRC  8
+
+// Device resolution
+#define TEMP_9_BIT  0x1F //  9 bit
+#define TEMP_10_BIT 0x3F // 10 bit
+#define TEMP_11_BIT 0x5F // 11 bit
+#define TEMP_12_BIT 0x7F // 12 bit
+
+// Error Codes
+#define DEVICE_DISCONNECTED_C -127
+#define DEVICE_DISCONNECTED_F -196.6
+#define DEVICE_DISCONNECTED_RAW -7040
+
+typedef uint8_t DeviceAddress[8];
+
+class DallasTemperature
+{
+public:
+
+    DallasTemperature();
+    DallasTemperature(OneWire*);
+
+    void setOneWire(OneWire*);
+
+    // initialise bus
+    void begin(void);
+
+    // returns the number of devices found on the bus
+    uint8_t getDeviceCount(void);
+
+    // returns true if address is valid
+    bool validAddress(const uint8_t*);
+
+    // returns true if address is of the family of sensors the lib supports.
+    bool validFamily(const uint8_t* deviceAddress);
+
+    // finds an address at a given index on the bus
+    bool getAddress(uint8_t*, uint8_t);
+
+    // attempt to determine if the device at the given address is connected to the bus
+    bool isConnected(const uint8_t*);
+
+    // attempt to determine if the device at the given address is connected to the bus
+    // also allows for updating the read scratchpad
+    bool isConnected(const uint8_t*, uint8_t*);
+
+    // read device's scratchpad
+    bool readScratchPad(const uint8_t*, uint8_t*);
+
+    // write device's scratchpad
+    void writeScratchPad(const uint8_t*, const uint8_t*);
+
+    // read device's power requirements
+    bool readPowerSupply(const uint8_t*);
+
+    // get global resolution
+    uint8_t getResolution();
+
+    // set global resolution to 9, 10, 11, or 12 bits
+    void setResolution(uint8_t);
+
+    // returns the device resolution: 9, 10, 11, or 12 bits
+    uint8_t getResolution(const uint8_t*);
+
+    // set resolution of a device to 9, 10, 11, or 12 bits
+    bool setResolution(const uint8_t*, uint8_t);
+
+    // sets/gets the waitForConversion flag
+    void setWaitForConversion(bool);
+    bool getWaitForConversion(void);
+
+    // sets/gets the checkForConversion flag
+    void setCheckForConversion(bool);
+    bool getCheckForConversion(void);
+
+    // sends command for all devices on the bus to perform a temperature conversion
+    void requestTemperatures(void);
+
+    // sends command for one device to perform a temperature conversion by address
+    bool requestTemperaturesByAddress(const uint8_t*);
+
+    // sends command for one device to perform a temperature conversion by index
+    bool requestTemperaturesByIndex(uint8_t);
+
+    // returns temperature raw value (12 bit integer of 1/128 degrees C)
+    int16_t getTemp(const uint8_t*);
+
+    // returns temperature in degrees C
+    float getTempC(const uint8_t*);
+
+    // returns temperature in degrees F
+    float getTempF(const uint8_t*);
+
+    // Get temperature for device index (slow)
+    float getTempCByIndex(uint8_t);
+
+    // Get temperature for device index (slow)
+    float getTempFByIndex(uint8_t);
+
+    // returns true if the bus requires parasite power
+    bool isParasitePowerMode(void);
+
+    bool isConversionAvailable(const uint8_t*);
+
+#if REQUIRESALARMS
+
+    typedef void AlarmHandler(const uint8_t*);
+
+    // sets the high alarm temperature for a device
+    // accepts a char.  valid range is -55C - 125C
+    void setHighAlarmTemp(const uint8_t*, char);
+
+    // sets the low alarm temperature for a device
+    // accepts a char.  valid range is -55C - 125C
+    void setLowAlarmTemp(const uint8_t*, char);
+
+    // returns a signed char with the current high alarm temperature for a device
+    // in the range -55C - 125C
+    char getHighAlarmTemp(const uint8_t*);
+
+    // returns a signed char with the current low alarm temperature for a device
+    // in the range -55C - 125C
+    char getLowAlarmTemp(const uint8_t*);
+
+    // resets internal variables used for the alarm search
+    void resetAlarmSearch(void);
+
+    // search the wire for devices with active alarms
+    bool alarmSearch(uint8_t*);
+
+    // returns true if ia specific device has an alarm
+    bool hasAlarm(const uint8_t*);
+
+    // returns true if any device is reporting an alarm on the bus
+    bool hasAlarm(void);
+
+    // runs the alarm handler for all devices returned by alarmSearch()
+    void processAlarms(void);
+
+    // sets the alarm handler
+    void setAlarmHandler(const AlarmHandler *);
+
+    // The default alarm handler
+    static void defaultAlarmHandler(const uint8_t*);
+
+#endif
+
+    // if no alarm handler is used the two bytes can be used as user data
+    // example of such usage is an ID.
+    // note if device is not connected it will fail writing the data.
+    // note if address cannot be found no error will be reported.
+    // in short use carefully
+    void setUserData(const uint8_t*, int16_t );
+    void setUserDataByIndex(uint8_t, int16_t );
+    int16_t getUserData(const uint8_t* );
+    int16_t getUserDataByIndex(uint8_t );
+
+    // convert from Celsius to Fahrenheit
+    static float toFahrenheit(float);
+
+    // convert from Fahrenheit to Celsius
+    static float toCelsius(float);
+
+    // convert from raw to Celsius
+    static float rawToCelsius(int16_t);
+
+    // convert from raw to Fahrenheit
+    static float rawToFahrenheit(int16_t);
+
+#if REQUIRESNEW
+
+    // initialize memory area
+    void* operator new (unsigned int);
+
+    // delete memory reference
+    void operator delete(void*);
+
+#endif
+
+private:
+    typedef uint8_t ScratchPad[9];
+
+    // parasite power on or off
+    bool parasite;
+
+    // used to determine the delay amount needed to allow for the
+    // temperature conversion to take place
+    uint8_t bitResolution;
+
+    // used to requestTemperature with or without delay
+    bool waitForConversion;
+
+    // used to requestTemperature to dynamically check if a conversion is complete
+    bool checkForConversion;
+
+    // count of devices on the bus
+    uint8_t devices;
+
+    // Take a pointer to one wire instance
+    OneWire* _wire;
+
+    // reads scratchpad and returns the raw temperature
+    int16_t calculateTemperature(const uint8_t*, uint8_t*);
+
+    int16_t millisToWaitForConversion(uint8_t);
+
+    void	blockTillConversionComplete(uint8_t, const uint8_t*);
+
+#if REQUIRESALARMS
+
+    // required for alarmSearch
+    uint8_t alarmSearchAddress[8];
+    char alarmSearchJunction;
+    uint8_t alarmSearchExhausted;
+
+    // the alarm handler function pointer
+    AlarmHandler *_AlarmHandler;
+
+#endif
+
+};
+#endif

libraries/DallasTemperature/README.md

@@ -0,0 +1,64 @@
+# Arduino Library for Maxim Temperature Integrated Circuits
+
+## Usage
+
+This library supports the following devices :
+
+
+* DS18B20
+* DS18S20 - Please note there appears to be an issue with this series.
+* DS1822
+* DS1820
+
+
+You will need a pull-up resistor of about 5 KOhm between the 1-Wire data line
+and your 5V power. If you are using the DS18B20, ground pins 1 and 3. The
+centre pin is the data line '1-wire'.
+
+We have included a "REQUIRESNEW" and "REQUIRESALARMS" definition. If you 
+want to slim down the code feel free to use either of these by including
+
+
+
+	#define REQUIRESNEW 
+
+or 
+
+	#define REQUIRESALARMS
+
+
+at the top of DallasTemperature.h
+
+
+## Credits
+
+The OneWire code has been derived from
+http://www.arduino.cc/playground/Learning/OneWire.
+Miles Burton <miles@mnetcs.com> originally developed this library.
+Tim Newsome <nuisance@casualhacker.net> added support for multiple sensors on
+the same bus.
+Guil Barros [gfbarros@bappos.com] added getTempByAddress (v3.5)
+Rob Tillaart [rob.tillaart@gmail.com] added async modus (v3.7.0)
+
+
+## Website
+
+
+You can find the latest version of the library at
+http://milesburton.com/index.php?title=Dallas_Temperature_Control_Library
+
+# License
+
+This library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Lesser General Public
+License as published by the Free Software Foundation; either
+version 2.1 of the License, or (at your option) any later version.
+
+This library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+Lesser General Public License for more details.
+
+You should have received a copy of the GNU Lesser General Public
+License along with this library; if not, write to the Free Software
+Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA

libraries/DallasTemperature/change.txt

@@ -0,0 +1,85 @@
+
+This file contains the change history of the Dallas Temperature Control Library.
+
+VERSION 3.7.2 BETA
+===================
+DATE: 6 DEC  2011
+
+- Jordan Hochenbaum [jhochenbaum@gmail.com] updated library for compatibility with Arduino 1.0.
+
+VERSION 3.7.0 BETA
+===================
+DATE: 11 JAN  2011
+
+- Rob Tillaart [rob.tillaart@gmail.com] added async modus (v3.7.0)
+  The library is backwards compatible with version 3.6.0
+
+  MAJOR: async modus
+  ------------------
+- Added - private bool waitForConversion. 
+This boolean is default set to true in the Constructor to keep the library backwards compatible. If this flag is true calls to requestTemperatures(), requestTemperaturesByAddress() et al, will be blocking with the appropiate time specified (in datasheet) for the resolution used. If the flag is set to false, requestTemperatures() et al, will return immediately after the conversion command is send over the 1-wire interface. The programmer is responsible to wait long enough before reading the temperature values. This enables the application to do other things while waiting for a new reading, like calculations, update LCD, read/write other IO lines etc. See examples.
+
+- Added - void setWaitForConversion(bool); 
+To set the flag to true or false, depending on the modus needed.
+
+- Added - bool getWaitForConversion(void); 
+To get the current value of the flag.
+
+- Changed - void requestTemperatures(void);
+Added a test (false == waitForConversion) to return immediately after the conversion command instead of waiting until the conversion is ready.
+ 
+- Changed - bool requestTemperaturesByAddress(uint8_t*); 
+Added a test (false == waitForConversion) to return immediately after the conversion command instead of waiting until the conversion is ready.
+
+
+  MINOR version number
+  --------------------
+- Added - #define DALLASTEMPLIBVERSION "3.7.0" 
+To indicate the version number in .h file 
+  
+  
+  MINOR internal var bitResolution
+  ----------------------------
+- Changed - private int conversionDelay - is renamed to - private int bitResolution
+As this variable holds the resolution. The delay for the conversion is derived from it.
+
+- Changed - uint8_t getResolution(uint8_t* deviceAddress);
+If the device is not connected, it returns 0, otherwise it returns the resolution of the device.
+
+- Changed - bool setResolution(uint8_t* deviceAddress, uint8_t newResolution);
+If the device is not connected, it returns FALSE (fail), otherwise it returns TRUE (succes).
+
+- Added - uint8_t getResolution();
+Returns bitResolution.
+
+- Added - void setResolution(uint8_t newResolution)
+Sets the internal variable bitResolution, and all devices to this value
+
+
+  MINOR check connected state
+  ----------------------------
+- Changed - bool requestTemperaturesByIndex(deviceIndex) 
+Changed return type from void to bool. The function returns false if the device identified with [deviceIndex] is not found on the bus and true otherwise.
+
+- Changed - bool requestTemperaturesByAddress(deviceAddress)
+Changed return type from void to bool. The function returns false if the device identified with [deviceAddress] is not found on the bus and true otherwise.
+Added code to handle the DS18S20 which has a 9 bit resolution separately.
+Changed code so the blocking delay matches the bitResolution set in the device with deviceAddress.
+
+- Changed - bool requestTemperaturesByIndex(uint8_t deviceIndex)
+Changed return type from void to bool. The function returns false if the device identified with [deviceIndex] is not found on the bus and true otherwise.
+
+
+
+VERSION 3.6.0
+==============
+DATE: 2010-10-10
+
+- no detailed change history known except:
+
+- The OneWire code has been derived from
+http://www.arduino.cc/playground/Learning/OneWire.
+- Miles Burton <miles@mnetcs.com> originally developed this library.
+- Tim Newsome <nuisance@casualhacker.net> added support for multiple sensors on
+the same bus.
+- Guil Barros [gfbarros@bappos.com] added getTempByAddress (v3.5)

libraries/DallasTemperature/examples/Alarm/Alarm.pde

@@ -0,0 +1,162 @@
+#include <OneWire.h>
+#include <DallasTemperature.h>
+
+// Data wire is plugged into port 2 on the Arduino
+#define ONE_WIRE_BUS 2
+
+// Setup a oneWire instance to communicate with any OneWire devices (not just Maxim/Dallas temperature ICs)
+OneWire oneWire(ONE_WIRE_BUS);
+
+// Pass our oneWire reference to Dallas Temperature. 
+DallasTemperature sensors(&oneWire);
+
+// arrays to hold device addresses
+DeviceAddress insideThermometer, outsideThermometer;
+
+void setup(void)
+{
+  // start serial port
+  Serial.begin(9600);
+  Serial.println("Dallas Temperature IC Control Library Demo");
+
+  // Start up the library
+  sensors.begin();
+  
+  // locate devices on the bus
+  Serial.print("Found ");
+  Serial.print(sensors.getDeviceCount(), DEC);
+  Serial.println(" devices.");
+
+  // search for devices on the bus and assign based on an index.
+  if (!sensors.getAddress(insideThermometer, 0)) Serial.println("Unable to find address for Device 0"); 
+  if (!sensors.getAddress(outsideThermometer, 1)) Serial.println("Unable to find address for Device 1"); 
+
+  // show the addresses we found on the bus
+  Serial.print("Device 0 Address: ");
+  printAddress(insideThermometer);
+  Serial.println();
+
+  Serial.print("Device 0 Alarms: ");
+  printAlarms(insideThermometer);
+  Serial.println();
+  
+  Serial.print("Device 1 Address: ");
+  printAddress(outsideThermometer);
+  Serial.println();
+
+  Serial.print("Device 1 Alarms: ");
+  printAlarms(outsideThermometer);
+  Serial.println();
+  
+  Serial.println("Setting alarm temps...");
+
+  // alarm when temp is higher than 30C
+  sensors.setHighAlarmTemp(insideThermometer, 30);
+  
+  // alarm when temp is lower than -10C
+  sensors.setLowAlarmTemp(insideThermometer, -10);
+  
+  // alarm when temp is higher than 31C
+  sensors.setHighAlarmTemp(outsideThermometer, 31);
+  
+  // alarn when temp is lower than 27C
+  sensors.setLowAlarmTemp(outsideThermometer, 27);
+  
+  Serial.print("New Device 0 Alarms: ");
+  printAlarms(insideThermometer);
+  Serial.println();
+  
+  Serial.print("New Device 1 Alarms: ");
+  printAlarms(outsideThermometer);
+  Serial.println();
+}
+
+// function to print a device address
+void printAddress(DeviceAddress deviceAddress)
+{
+  for (uint8_t i = 0; i < 8; i++)
+  {
+    if (deviceAddress[i] < 16) Serial.print("0");
+    Serial.print(deviceAddress[i], HEX);
+  }
+}
+
+// function to print the temperature for a device
+void printTemperature(DeviceAddress deviceAddress)
+{
+  float tempC = sensors.getTempC(deviceAddress);
+  Serial.print("Temp C: ");
+  Serial.print(tempC);
+  Serial.print(" Temp F: ");
+  Serial.print(DallasTemperature::toFahrenheit(tempC));
+}
+
+void printAlarms(uint8_t deviceAddress[])
+{
+  char temp;
+  temp = sensors.getHighAlarmTemp(deviceAddress);
+  Serial.print("High Alarm: ");
+  Serial.print(temp, DEC);
+  Serial.print("C/");
+  Serial.print(DallasTemperature::toFahrenheit(temp));
+  Serial.print("F | Low Alarm: ");
+  temp = sensors.getLowAlarmTemp(deviceAddress);
+  Serial.print(temp, DEC);
+  Serial.print("C/");
+  Serial.print(DallasTemperature::toFahrenheit(temp));
+  Serial.print("F");
+}
+
+// main function to print information about a device
+void printData(DeviceAddress deviceAddress)
+{
+  Serial.print("Device Address: ");
+  printAddress(deviceAddress);
+  Serial.print(" ");
+  printTemperature(deviceAddress);
+  Serial.println();
+}
+
+void checkAlarm(DeviceAddress deviceAddress)
+{
+  if (sensors.hasAlarm(deviceAddress))
+  {
+    Serial.print("ALARM: ");
+    printData(deviceAddress);
+  }
+}
+
+void loop(void)
+{ 
+  // call sensors.requestTemperatures() to issue a global temperature 
+  // request to all devices on the bus
+  Serial.print("Requesting temperatures...");
+  sensors.requestTemperatures();
+  Serial.println("DONE");
+
+  // Method 1:
+  // check each address individually for an alarm condition
+  checkAlarm(insideThermometer);
+  checkAlarm(outsideThermometer);
+/*
+  // Alternate method:
+  // Search the bus and iterate through addresses of devices with alarms
+  
+  // space for the alarm device's address
+  DeviceAddress alarmAddr;
+
+  Serial.println("Searching for alarms...");
+  
+  // resetAlarmSearch() must be called before calling alarmSearch()
+  sensors.resetAlarmSearch();
+  
+  // alarmSearch() returns 0 when there are no devices with alarms
+  while (sensors.alarmSearch(alarmAddr))
+  {
+    Serial.print("ALARM: ");
+    printData(alarmAddr);
+  }
+*/
+
+}
+

libraries/DallasTemperature/examples/AlarmHandler/AlarmHandler.pde

@@ -0,0 +1,144 @@
+#include <OneWire.h>
+#include <DallasTemperature.h>
+
+// Data wire is plugged into port 2 on the Arduino
+#define ONE_WIRE_BUS 2
+
+// Setup a oneWire instance to communicate with any OneWire devices (not just Maxim/Dallas temperature ICs)
+OneWire oneWire(ONE_WIRE_BUS);
+
+// Pass our oneWire reference to Dallas Temperature. 
+DallasTemperature sensors(&oneWire);
+
+// arrays to hold device addresses
+DeviceAddress insideThermometer, outsideThermometer;
+
+// function that will be called when an alarm condition exists during DallasTemperatures::processAlarms();
+void newAlarmHandler(uint8_t* deviceAddress)
+{
+  Serial.println("Alarm Handler Start"); 
+  printAlarmInfo(deviceAddress);
+  printTemp(deviceAddress);
+  Serial.println();
+  Serial.println("Alarm Handler Finish");
+}
+
+void printCurrentTemp(DeviceAddress deviceAddress)
+{
+  printAddress(deviceAddress);
+  printTemp(deviceAddress);
+  Serial.println();
+}
+
+void printAddress(DeviceAddress deviceAddress)
+{
+  Serial.print("Address: ");
+  for (uint8_t i = 0; i < 8; i++)
+  {
+    if (deviceAddress[i] < 16) Serial.print("0");
+    Serial.print(deviceAddress[i], HEX);
+  }
+  Serial.print(" ");
+}
+
+void printTemp(DeviceAddress deviceAddress)
+{
+  float tempC = sensors.getTempC(deviceAddress);
+  if (tempC != DEVICE_DISCONNECTED)
+  {
+    Serial.print("Current Temp C: ");
+    Serial.print(tempC);
+  }
+  else Serial.print("DEVICE DISCONNECTED");
+  Serial.print(" ");
+}
+
+void printAlarmInfo(DeviceAddress deviceAddress)
+{
+  char temp;
+  printAddress(deviceAddress);
+  temp = sensors.getHighAlarmTemp(deviceAddress);
+  Serial.print("High Alarm: ");
+  Serial.print(temp, DEC);
+  Serial.print("C");
+  Serial.print(" Low Alarm: ");
+  temp = sensors.getLowAlarmTemp(deviceAddress);
+  Serial.print(temp, DEC);
+  Serial.print("C");
+  Serial.print(" ");
+}
+
+void setup(void)
+{
+  // start serial port
+  Serial.begin(9600);
+  Serial.println("Dallas Temperature IC Control Library Demo");
+
+  // Start up the library
+  sensors.begin();
+  
+  // locate devices on the bus
+  Serial.print("Found ");
+  Serial.print(sensors.getDeviceCount(), DEC);
+  Serial.println(" devices.");
+
+  // search for devices on the bus and assign based on an index
+  if (!sensors.getAddress(insideThermometer, 0)) Serial.println("Unable to find address for Device 0"); 
+  if (!sensors.getAddress(outsideThermometer, 1)) Serial.println("Unable to find address for Device 1"); 
+
+  Serial.print("Device insideThermometer ");
+  printAlarmInfo(insideThermometer);
+  Serial.println();
+  
+  Serial.print("Device outsideThermometer ");
+  printAlarmInfo(outsideThermometer);
+  Serial.println();
+  
+  // set alarm ranges
+  Serial.println("Setting alarm temps...");
+  sensors.setHighAlarmTemp(insideThermometer, 26);
+  sensors.setLowAlarmTemp(insideThermometer, 22);
+  sensors.setHighAlarmTemp(outsideThermometer, 25);
+  sensors.setLowAlarmTemp(outsideThermometer, 21);
+  
+  Serial.print("New insideThermometer ");
+  printAlarmInfo(insideThermometer);
+  Serial.println();
+  
+  Serial.print("New outsideThermometer ");
+  printAlarmInfo(outsideThermometer);
+  Serial.println();
+
+  // attach alarm handler
+  sensors.setAlarmHandler(&newAlarmHandler);
+
+}
+
+void loop(void)
+{ 
+  // ask the devices to measure the temperature
+  sensors.requestTemperatures();
+  
+  // if an alarm condition exists as a result of the most recent 
+  // requestTemperatures() request, it exists until the next time 
+  // requestTemperatures() is called AND there isn't an alarm condition
+  // on the device
+  if (sensors.hasAlarm())
+  {
+    Serial.println("Oh noes!  There is at least one alarm on the bus.");
+  }
+
+  // call alarm handler function defined by sensors.setAlarmHandler
+  // for each device reporting an alarm
+  sensors.processAlarms();
+
+  if (!sensors.hasAlarm())
+  {
+    // just print out the current temperature
+    printCurrentTemp(insideThermometer);
+    printCurrentTemp(outsideThermometer);
+  }
+  
+  delay(1000);
+}
+

libraries/DallasTemperature/examples/Multibus_simple/Multibus_simple.ino

@@ -0,0 +1,48 @@
+#include <OneWire.h>
+#include <DallasTemperature.h>
+
+int oneWirePins[]={3,7};//OneWire DS18x20 temperature sensors on these wires
+const int oneWirePinsCount=sizeof(oneWirePins)/sizeof(int);
+
+OneWire ds18x20[oneWirePinsCount];
+DallasTemperature sensor[oneWirePinsCount];
+
+
+void setup(void) {
+  // start serial port
+  Serial.begin(9600);
+  Serial.println("Dallas Temperature Multiple Bus Control Library Simple Demo");
+  Serial.print("============Ready with ");
+  Serial.print(oneWirePinsCount);
+  Serial.println(" Sensors================");
+  
+  // Start up the library on all defined bus-wires
+  DeviceAddress deviceAddress;
+  for (int i=0; i<oneWirePinsCount; i++) {;
+    ds18x20[i].setPin(oneWirePins[i]);
+    sensor[i].setOneWire(&ds18x20[i]);
+    sensor[i].begin();
+    if (sensor[i].getAddress(deviceAddress, 0)) sensor[i].setResolution(deviceAddress, 12);
+  }
+  
+}
+
+void loop(void) {
+  // call sensors.requestTemperatures() to issue a global temperature 
+  // request to all devices on the bus
+  Serial.print("Requesting temperatures...");
+  for (int i=0; i<oneWirePinsCount; i++) {
+    sensor[i].requestTemperatures();
+  }
+  Serial.println("DONE");
+  
+  delay(1000);
+  for (int i=0; i<oneWirePinsCount; i++) {
+    float temperature=sensor[i].getTempCByIndex(0);
+    Serial.print("Temperature for the sensor ");
+    Serial.print(i);
+    Serial.print(" is ");
+    Serial.println(temperature);
+  }
+  Serial.println();
+}

libraries/DallasTemperature/examples/Multiple/Multiple.pde

@@ -0,0 +1,144 @@
+// Include the libraries we need
+#include <OneWire.h>
+#include <DallasTemperature.h>
+
+// Data wire is plugged into port 2 on the Arduino
+#define ONE_WIRE_BUS 2
+#define TEMPERATURE_PRECISION 9
+
+// Setup a oneWire instance to communicate with any OneWire devices (not just Maxim/Dallas temperature ICs)
+OneWire oneWire(ONE_WIRE_BUS);
+
+// Pass our oneWire reference to Dallas Temperature. 
+DallasTemperature sensors(&oneWire);
+
+// arrays to hold device addresses
+DeviceAddress insideThermometer, outsideThermometer;
+
+void setup(void)
+{
+  // start serial port
+  Serial.begin(9600);
+  Serial.println("Dallas Temperature IC Control Library Demo");
+
+  // Start up the library
+  sensors.begin();
+
+  // locate devices on the bus
+  Serial.print("Locating devices...");
+  Serial.print("Found ");
+  Serial.print(sensors.getDeviceCount(), DEC);
+  Serial.println(" devices.");
+
+  // report parasite power requirements
+  Serial.print("Parasite power is: "); 
+  if (sensors.isParasitePowerMode()) Serial.println("ON");
+  else Serial.println("OFF");
+
+  // Assign address manually. The addresses below will beed to be changed
+  // to valid device addresses on your bus. Device address can be retrieved
+  // by using either oneWire.search(deviceAddress) or individually via
+  // sensors.getAddress(deviceAddress, index)
+  //insideThermometer = { 0x28, 0x1D, 0x39, 0x31, 0x2, 0x0, 0x0, 0xF0 };
+  //outsideThermometer   = { 0x28, 0x3F, 0x1C, 0x31, 0x2, 0x0, 0x0, 0x2 };
+
+  // Search for devices on the bus and assign based on an index. Ideally,
+  // you would do this to initially discover addresses on the bus and then 
+  // use those addresses and manually assign them (see above) once you know 
+  // the devices on your bus (and assuming they don't change).
+  // 
+  // method 1: by index
+  if (!sensors.getAddress(insideThermometer, 0)) Serial.println("Unable to find address for Device 0"); 
+  if (!sensors.getAddress(outsideThermometer, 1)) Serial.println("Unable to find address for Device 1"); 
+
+  // method 2: search()
+  // search() looks for the next device. Returns 1 if a new address has been
+  // returned. A zero might mean that the bus is shorted, there are no devices, 
+  // or you have already retrieved all of them. It might be a good idea to 
+  // check the CRC to make sure you didn't get garbage. The order is 
+  // deterministic. You will always get the same devices in the same order
+  //
+  // Must be called before search()
+  //oneWire.reset_search();
+  // assigns the first address found to insideThermometer
+  //if (!oneWire.search(insideThermometer)) Serial.println("Unable to find address for insideThermometer");
+  // assigns the seconds address found to outsideThermometer
+  //if (!oneWire.search(outsideThermometer)) Serial.println("Unable to find address for outsideThermometer");
+
+  // show the addresses we found on the bus
+  Serial.print("Device 0 Address: ");
+  printAddress(insideThermometer);
+  Serial.println();
+
+  Serial.print("Device 1 Address: ");
+  printAddress(outsideThermometer);
+  Serial.println();
+
+  // set the resolution to 9 bit per device
+  sensors.setResolution(insideThermometer, TEMPERATURE_PRECISION);
+  sensors.setResolution(outsideThermometer, TEMPERATURE_PRECISION);
+
+  Serial.print("Device 0 Resolution: ");
+  Serial.print(sensors.getResolution(insideThermometer), DEC); 
+  Serial.println();
+
+  Serial.print("Device 1 Resolution: ");
+  Serial.print(sensors.getResolution(outsideThermometer), DEC); 
+  Serial.println();
+}
+
+// function to print a device address
+void printAddress(DeviceAddress deviceAddress)
+{
+  for (uint8_t i = 0; i < 8; i++)
+  {
+    // zero pad the address if necessary
+    if (deviceAddress[i] < 16) Serial.print("0");
+    Serial.print(deviceAddress[i], HEX);
+  }
+}
+
+// function to print the temperature for a device
+void printTemperature(DeviceAddress deviceAddress)
+{
+  float tempC = sensors.getTempC(deviceAddress);
+  Serial.print("Temp C: ");
+  Serial.print(tempC);
+  Serial.print(" Temp F: ");
+  Serial.print(DallasTemperature::toFahrenheit(tempC));
+}
+
+// function to print a device's resolution
+void printResolution(DeviceAddress deviceAddress)
+{
+  Serial.print("Resolution: ");
+  Serial.print(sensors.getResolution(deviceAddress));
+  Serial.println();    
+}
+
+// main function to print information about a device
+void printData(DeviceAddress deviceAddress)
+{
+  Serial.print("Device Address: ");
+  printAddress(deviceAddress);
+  Serial.print(" ");
+  printTemperature(deviceAddress);
+  Serial.println();
+}
+
+/*
+ * Main function, calls the temperatures in a loop.
+ */
+void loop(void)
+{ 
+  // call sensors.requestTemperatures() to issue a global temperature 
+  // request to all devices on the bus
+  Serial.print("Requesting temperatures...");
+  sensors.requestTemperatures();
+  Serial.println("DONE");
+
+  // print the device information
+  printData(insideThermometer);
+  printData(outsideThermometer);
+}
+

libraries/DallasTemperature/examples/Simple/Simple.pde

@@ -0,0 +1,41 @@
+// Include the libraries we need
+#include <OneWire.h>
+#include <DallasTemperature.h>
+
+// Data wire is plugged into port 2 on the Arduino
+#define ONE_WIRE_BUS 2
+
+// Setup a oneWire instance to communicate with any OneWire devices (not just Maxim/Dallas temperature ICs)
+OneWire oneWire(ONE_WIRE_BUS);
+
+// Pass our oneWire reference to Dallas Temperature. 
+DallasTemperature sensors(&oneWire);
+
+/*
+ * The setup function. We only start the sensors here
+ */
+void setup(void)
+{
+  // start serial port
+  Serial.begin(9600);
+  Serial.println("Dallas Temperature IC Control Library Demo");
+
+  // Start up the library
+  sensors.begin();
+}
+
+/*
+ * Main function, get and show the temperature
+ */
+void loop(void)
+{ 
+  // call sensors.requestTemperatures() to issue a global temperature 
+  // request to all devices on the bus
+  Serial.print("Requesting temperatures...");
+  sensors.requestTemperatures(); // Send the command to get temperatures
+  Serial.println("DONE");
+  // After we got the temperatures, we can print them here.
+  // We use the function ByIndex, and as an example get the temperature from the first sensor only.
+  Serial.print("Temperature for the device 1 (index 0) is: ");
+  Serial.println(sensors.getTempCByIndex(0));  
+}

libraries/DallasTemperature/examples/Single/Single.pde

@@ -0,0 +1,116 @@
+// Include the libraries we need
+#include <OneWire.h>
+#include <DallasTemperature.h>
+
+// Data wire is plugged into port 2 on the Arduino
+#define ONE_WIRE_BUS 2
+
+// Setup a oneWire instance to communicate with any OneWire devices (not just Maxim/Dallas temperature ICs)
+OneWire oneWire(ONE_WIRE_BUS);
+
+// Pass our oneWire reference to Dallas Temperature. 
+DallasTemperature sensors(&oneWire);
+
+// arrays to hold device address
+DeviceAddress insideThermometer;
+
+/*
+ * Setup function. Here we do the basics
+ */
+void setup(void)
+{
+  // start serial port
+  Serial.begin(9600);
+  Serial.println("Dallas Temperature IC Control Library Demo");
+
+  // locate devices on the bus
+  Serial.print("Locating devices...");
+  sensors.begin();
+  Serial.print("Found ");
+  Serial.print(sensors.getDeviceCount(), DEC);
+  Serial.println(" devices.");
+
+  // report parasite power requirements
+  Serial.print("Parasite power is: "); 
+  if (sensors.isParasitePowerMode()) Serial.println("ON");
+  else Serial.println("OFF");
+  
+  // Assign address manually. The addresses below will beed to be changed
+  // to valid device addresses on your bus. Device address can be retrieved
+  // by using either oneWire.search(deviceAddress) or individually via
+  // sensors.getAddress(deviceAddress, index)
+  // Note that you will need to use your specific address here
+  //insideThermometer = { 0x28, 0x1D, 0x39, 0x31, 0x2, 0x0, 0x0, 0xF0 };
+
+  // Method 1:
+  // Search for devices on the bus and assign based on an index. Ideally,
+  // you would do this to initially discover addresses on the bus and then 
+  // use those addresses and manually assign them (see above) once you know 
+  // the devices on your bus (and assuming they don't change).
+  if (!sensors.getAddress(insideThermometer, 0)) Serial.println("Unable to find address for Device 0"); 
+  
+  // method 2: search()
+  // search() looks for the next device. Returns 1 if a new address has been
+  // returned. A zero might mean that the bus is shorted, there are no devices, 
+  // or you have already retrieved all of them. It might be a good idea to 
+  // check the CRC to make sure you didn't get garbage. The order is 
+  // deterministic. You will always get the same devices in the same order
+  //
+  // Must be called before search()
+  //oneWire.reset_search();
+  // assigns the first address found to insideThermometer
+  //if (!oneWire.search(insideThermometer)) Serial.println("Unable to find address for insideThermometer");
+
+  // show the addresses we found on the bus
+  Serial.print("Device 0 Address: ");
+  printAddress(insideThermometer);
+  Serial.println();
+
+  // set the resolution to 9 bit (Each Dallas/Maxim device is capable of several different resolutions)
+  sensors.setResolution(insideThermometer, 9);
+ 
+  Serial.print("Device 0 Resolution: ");
+  Serial.print(sensors.getResolution(insideThermometer), DEC); 
+  Serial.println();
+}
+
+// function to print the temperature for a device
+void printTemperature(DeviceAddress deviceAddress)
+{
+  // method 1 - slower
+  //Serial.print("Temp C: ");
+  //Serial.print(sensors.getTempC(deviceAddress));
+  //Serial.print(" Temp F: ");
+  //Serial.print(sensors.getTempF(deviceAddress)); // Makes a second call to getTempC and then converts to Fahrenheit
+
+  // method 2 - faster
+  float tempC = sensors.getTempC(deviceAddress);
+  Serial.print("Temp C: ");
+  Serial.print(tempC);
+  Serial.print(" Temp F: ");
+  Serial.println(DallasTemperature::toFahrenheit(tempC)); // Converts tempC to Fahrenheit
+}
+/*
+ * Main function. It will request the tempC from the sensors and display on Serial.
+ */
+void loop(void)
+{ 
+  // call sensors.requestTemperatures() to issue a global temperature 
+  // request to all devices on the bus
+  Serial.print("Requesting temperatures...");
+  sensors.requestTemperatures(); // Send the command to get temperatures
+  Serial.println("DONE");
+  
+  // It responds almost immediately. Let's print out the data
+  printTemperature(insideThermometer); // Use a simple function to print out the data
+}
+
+// function to print a device address
+void printAddress(DeviceAddress deviceAddress)
+{
+  for (uint8_t i = 0; i < 8; i++)
+  {
+    if (deviceAddress[i] < 16) Serial.print("0");
+    Serial.print(deviceAddress[i], HEX);
+  }
+}

libraries/DallasTemperature/examples/Tester/Tester.pde

@@ -0,0 +1,124 @@
+#include <OneWire.h>
+#include <DallasTemperature.h>
+
+// Data wire is plugged into port 2 on the Arduino
+#define ONE_WIRE_BUS 2
+#define TEMPERATURE_PRECISION 9 // Lower resolution
+
+// Setup a oneWire instance to communicate with any OneWire devices (not just Maxim/Dallas temperature ICs)
+OneWire oneWire(ONE_WIRE_BUS);
+
+// Pass our oneWire reference to Dallas Temperature. 
+DallasTemperature sensors(&oneWire);
+
+int numberOfDevices; // Number of temperature devices found
+
+DeviceAddress tempDeviceAddress; // We'll use this variable to store a found device address
+
+void setup(void)
+{
+  // start serial port
+  Serial.begin(9600);
+  Serial.println("Dallas Temperature IC Control Library Demo");
+
+  // Start up the library
+  sensors.begin();
+  
+  // Grab a count of devices on the wire
+  numberOfDevices = sensors.getDeviceCount();
+  
+  // locate devices on the bus
+  Serial.print("Locating devices...");
+  
+  Serial.print("Found ");
+  Serial.print(numberOfDevices, DEC);
+  Serial.println(" devices.");
+
+  // report parasite power requirements
+  Serial.print("Parasite power is: "); 
+  if (sensors.isParasitePowerMode()) Serial.println("ON");
+  else Serial.println("OFF");
+  
+  // Loop through each device, print out address
+  for(int i=0;i<numberOfDevices; i++)
+  {
+    // Search the wire for address
+    if(sensors.getAddress(tempDeviceAddress, i))
+	{
+		Serial.print("Found device ");
+		Serial.print(i, DEC);
+		Serial.print(" with address: ");
+		printAddress(tempDeviceAddress);
+		Serial.println();
+		
+		Serial.print("Setting resolution to ");
+		Serial.println(TEMPERATURE_PRECISION, DEC);
+		
+		// set the resolution to TEMPERATURE_PRECISION bit (Each Dallas/Maxim device is capable of several different resolutions)
+		sensors.setResolution(tempDeviceAddress, TEMPERATURE_PRECISION);
+		
+		 Serial.print("Resolution actually set to: ");
+		Serial.print(sensors.getResolution(tempDeviceAddress), DEC); 
+		Serial.println();
+	}else{
+		Serial.print("Found ghost device at ");
+		Serial.print(i, DEC);
+		Serial.print(" but could not detect address. Check power and cabling");
+	}
+  }
+
+}
+
+// function to print the temperature for a device
+void printTemperature(DeviceAddress deviceAddress)
+{
+  // method 1 - slower
+  //Serial.print("Temp C: ");
+  //Serial.print(sensors.getTempC(deviceAddress));
+  //Serial.print(" Temp F: ");
+  //Serial.print(sensors.getTempF(deviceAddress)); // Makes a second call to getTempC and then converts to Fahrenheit
+
+  // method 2 - faster
+  float tempC = sensors.getTempC(deviceAddress);
+  Serial.print("Temp C: ");
+  Serial.print(tempC);
+  Serial.print(" Temp F: ");
+  Serial.println(DallasTemperature::toFahrenheit(tempC)); // Converts tempC to Fahrenheit
+}
+
+void loop(void)
+{ 
+  // call sensors.requestTemperatures() to issue a global temperature 
+  // request to all devices on the bus
+  Serial.print("Requesting temperatures...");
+  sensors.requestTemperatures(); // Send the command to get temperatures
+  Serial.println("DONE");
+  
+  
+  // Loop through each device, print out temperature data
+  for(int i=0;i<numberOfDevices; i++)
+  {
+    // Search the wire for address
+    if(sensors.getAddress(tempDeviceAddress, i))
+	{
+		// Output the device ID
+		Serial.print("Temperature for device: ");
+		Serial.println(i,DEC);
+		
+		// It responds almost immediately. Let's print out the data
+		printTemperature(tempDeviceAddress); // Use a simple function to print out the data
+	} 
+	//else ghost device! Check your power requirements and cabling
+	
+  }
+}
+
+// function to print a device address
+void printAddress(DeviceAddress deviceAddress)
+{
+  for (uint8_t i = 0; i < 8; i++)
+  {
+    if (deviceAddress[i] < 16) Serial.print("0");
+    Serial.print(deviceAddress[i], HEX);
+  }
+}

libraries/DallasTemperature/examples/TwoPin_DS18B20/TwoPin_DS18B20.ino

@@ -0,0 +1,45 @@
+//
+// FILE: TwoPin_DS18B20.ino
+// AUTHOR: Rob Tillaart
+// VERSION: 0.1.00
+// PURPOSE: two pins for two sensors demo
+// DATE: 2014-06-13
+// URL: http://forum.arduino.cc/index.php?topic=216835.msg1764333#msg1764333
+//
+// Released to the public domain
+//
+
+#include <OneWire.h>
+#include <DallasTemperature.h>
+
+#define ONE_WIRE_BUS_1 2
+#define ONE_WIRE_BUS_2 4
+
+OneWire oneWire_in(ONE_WIRE_BUS_1);
+OneWire oneWire_out(ONE_WIRE_BUS_2);
+
+DallasTemperature sensor_inhouse(&oneWire_in);
+DallasTemperature sensor_outhouse(&oneWire_out);
+
+void setup(void)
+{
+    Serial.begin(9600);
+    Serial.println("Dallas Temperature Control Library Demo - TwoPin_DS18B20");
+
+    sensor_inhouse.begin();
+    sensor_outhouse.begin();
+}
+
+void loop(void)
+{
+    Serial.print("Requesting temperatures...");
+    sensor_inhouse.requestTemperatures();
+    sensor_outhouse.requestTemperatures();
+    Serial.println(" done");
+
+    Serial.print("Inhouse: ");
+    Serial.println(sensor_inhouse.getTempCByIndex(0));
+
+    Serial.print("Outhouse: ");
+    Serial.println(sensor_outhouse.getTempCByIndex(0));
+}

libraries/DallasTemperature/examples/WaitForConversion/WaitForConversion.pde

@@ -0,0 +1,66 @@
+#include <OneWire.h>
+#include <DallasTemperature.h>
+
+// Data wire is plugged into port 2 on the Arduino
+#define ONE_WIRE_BUS 2
+
+// Setup a oneWire instance to communicate with any OneWire devices (not just Maxim/Dallas temperature ICs)
+OneWire oneWire(ONE_WIRE_BUS);
+
+// Pass our oneWire reference to Dallas Temperature. 
+DallasTemperature sensors(&oneWire);
+
+void setup(void)
+{
+  // start serial port
+  Serial.begin(115200);
+  Serial.println("Dallas Temperature Control Library - Async Demo");
+  Serial.println("\nDemo shows the difference in length of the call\n\n");
+
+  // Start up the library
+  sensors.begin();
+}
+
+void loop(void)
+{ 
+  // Request temperature conversion (traditional)
+  Serial.println("Before blocking requestForConversion");
+  unsigned long start = millis();    
+
+  sensors.requestTemperatures();
+
+  unsigned long stop = millis();
+  Serial.println("After blocking requestForConversion");
+  Serial.print("Time used: ");
+  Serial.println(stop - start);
+  
+  // get temperature
+  Serial.print("Temperature: ");
+  Serial.println(sensors.getTempCByIndex(0));  
+  Serial.println("\n");
+  
+  // Request temperature conversion - non-blocking / async
+  Serial.println("Before NON-blocking/async requestForConversion");
+  start = millis();       
+  sensors.setWaitForConversion(false);  // makes it async
+  sensors.requestTemperatures();
+  sensors.setWaitForConversion(true);
+  stop = millis();
+  Serial.println("After NON-blocking/async requestForConversion");
+  Serial.print("Time used: ");
+  Serial.println(stop - start); 
+  
+  
+  // 9 bit resolution by default 
+  // Note the programmer is responsible for the right delay
+  // we could do something usefull here instead of the delay
+  int resolution = 9;
+  delay(750/ (1 << (12-resolution)));
+  
+  // get temperature
+  Serial.print("Temperature: ");
+  Serial.println(sensors.getTempCByIndex(0));  
+  Serial.println("\n\n\n\n");  
+  
+  delay(5000);
+}

libraries/DallasTemperature/examples/WaitForConversion2/WaitForConversion2.pde

@@ -0,0 +1,80 @@
+//
+// Sample of using Async reading of Dallas Temperature Sensors
+// 
+#include <OneWire.h>
+#include <DallasTemperature.h>
+
+// Data wire is plugged into port 2 on the Arduino
+#define ONE_WIRE_BUS 2
+
+// Setup a oneWire instance to communicate with any OneWire devices (not just Maxim/Dallas temperature ICs)
+OneWire oneWire(ONE_WIRE_BUS);
+
+// Pass our oneWire reference to Dallas Temperature. 
+DallasTemperature sensors(&oneWire);
+
+DeviceAddress tempDeviceAddress;
+
+int  resolution = 12;
+unsigned long lastTempRequest = 0;
+int  delayInMillis = 0;
+float temperature = 0.0;
+int  idle = 0;
+//
+// SETUP
+//
+void setup(void)
+{
+  Serial.begin(115200);
+  Serial.println("Dallas Temperature Control Library - Async Demo");
+  Serial.print("Library Version: ");
+  Serial.println(DALLASTEMPLIBVERSION);
+  Serial.println("\n");
+
+  sensors.begin();
+  sensors.getAddress(tempDeviceAddress, 0);
+  sensors.setResolution(tempDeviceAddress, resolution);
+  
+  sensors.setWaitForConversion(false);
+  sensors.requestTemperatures();
+  delayInMillis = 750 / (1 << (12 - resolution)); 
+  lastTempRequest = millis(); 
+  
+  pinMode(13, OUTPUT); 
+}
+
+void loop(void)
+{ 
+  
+  if (millis() - lastTempRequest >= delayInMillis) // waited long enough??
+  {
+    digitalWrite(13, LOW);
+    Serial.print(" Temperature: ");
+    temperature = sensors.getTempCByIndex(0);
+    Serial.println(temperature, resolution - 8); 
+    Serial.print("  Resolution: ");
+    Serial.println(resolution); 
+    Serial.print("Idle counter: ");
+    Serial.println(idle);     
+    Serial.println(); 
+    
+    idle = 0; 
+        
+    // immediately after fetching the temperature we request a new sample 
+	// in the async modus
+    // for the demo we let the resolution change to show differences
+    resolution++;
+    if (resolution > 12) resolution = 9;
+    
+    sensors.setResolution(tempDeviceAddress, resolution);
+    sensors.requestTemperatures(); 
+    delayInMillis = 750 / (1 << (12 - resolution));
+    lastTempRequest = millis(); 
+  }
+  
+  digitalWrite(13, HIGH);
+  // we can do usefull things here 
+  // for the demo we just count the idle time in millis
+  delay(1);
+  idle++;
+}

libraries/DallasTemperature/examples/oneWireSearch/oneWireSearch.ino

@@ -0,0 +1,67 @@
+//
+//    FILE: oneWireSearch.ino
+//  AUTHOR: Rob Tillaart
+// VERSION: 0.1.02
+// PURPOSE: scan for 1-Wire devices + code snippet generator
+//    DATE: 2015-june-30
+//     URL: http://forum.arduino.cc/index.php?topic=333923
+//
+// inspired by http://www.hacktronics.com/Tutorials/arduino-1-wire-address-finder.html
+//
+// Released to the public domain
+//
+// 0.1.00 initial version
+// 0.1.01 first published version
+// 0.1.02 small output changes
+
+#include <OneWire.h>
+
+void setup()
+{
+  Serial.begin(115200);
+  Serial.println("//\n// Start oneWireSearch.ino \n//");
+
+  for (uint8_t pin = 2; pin < 13; pin++)
+  {
+    findDevices(pin);
+  }
+  Serial.println("\n//\n// End oneWireSearch.ino \n//");
+}
+
+void loop()
+{
+}
+
+uint8_t findDevices(int pin)
+{
+  OneWire ow(pin);
+
+  uint8_t address[8];
+  uint8_t count = 0;
+
+
+  if (ow.search(address))
+  {
+    Serial.print("\nuint8_t pin");
+    Serial.print(pin, DEC);
+    Serial.println("[][8] = {");
+    {
+      count++;
+      Serial.println("  {");
+      for (uint8_t i = 0; i < 8; i++)
+      {
+        Serial.print("0x");
+        if (address[i] < 0x10) Serial.print("0");
+        Serial.print(address[i], HEX);
+        if (i < 7) Serial.print(", ");
+      }
+      Serial.println("  },");
+    } while (ow.search(address));
+
+    Serial.println("};");
+    Serial.print("// nr devices found: ");
+    Serial.println(count);
+  }
+
+  return count;
+}

libraries/DallasTemperature/examples/setUserData/SetUserData.ino

@@ -0,0 +1,47 @@
+//
+// This sketch does not use the ALARM registers and uses those 2 bytes as a counter
+// these 2 bytes can be used for other purposes as well e.g. last temperature or
+// a specific ID.
+// 
+
+#include <OneWire.h>
+#include <DallasTemperature.h>
+
+// Data wire is plugged into port 2 on the Arduino
+#define ONE_WIRE_BUS 2
+
+// Setup a oneWire instance to communicate with any OneWire devices (not just Maxim/Dallas temperature ICs)
+OneWire oneWire(ONE_WIRE_BUS);
+
+// Pass our oneWire reference to Dallas Temperature. 
+DallasTemperature sensors(&oneWire);
+
+int count = 0;
+
+void setup(void)
+{
+  // start serial port
+  Serial.begin(9600);
+  Serial.println("Dallas Temperature IC Control Library Demo");
+
+  // Start up the library
+  sensors.begin();
+  
+}
+
+void loop(void)
+{ 
+  // call sensors.requestTemperatures() to issue a global temperature 
+  // request to all devices on the bus
+  Serial.print("Requesting temperatures...");
+  sensors.requestTemperatures(); // Send the command to get temperatures
+  Serial.println("DONE");
+  
+  Serial.print("Temperature for the device 1 (index 0) is: ");
+  Serial.println(sensors.getTempCByIndex(0));  
+  
+  count++;
+  sensors.setUserDataByIndex(0, count);
+  int x = sensors.getUserDataByIndex(0);
+  Serial.println(count);
+}

libraries/DallasTemperature/keywords.txt

@@ -0,0 +1,54 @@
+#######################################
+# Syntax Coloring Map For DallasTemperature
+#######################################
+
+#######################################
+# Datatypes (KEYWORD1)
+#######################################
+DallasTemperature		KEYWORD1
+OneWire					KEYWORD1
+AlarmHandler			KEYWORD1
+DeviceAddress			KEYWORD1
+
+#######################################
+# Methods and Functions (KEYWORD2)
+#######################################
+
+setResolution			KEYWORD2
+getResolution			KEYWORD2
+getTempC				KEYWORD2
+toFahrenheit			KEYWORD2
+getTempF				KEYWORD2
+getTempCByIndex 		KEYWORD2
+getTempFByIndex			KEYWORD2
+setWaitForConversion	KEYWORD2
+getWaitForConversion	KEYWORD2
+requestTemperatures		KEYWORD2
+requestTemperaturesByAddress	KEYWORD2
+requestTemperaturesByIndex	KEYWORD2
+isParasitePowerMode		KEYWORD2
+begin					KEYWORD2
+getDeviceCount			KEYWORD2
+getAddress				KEYWORD2
+validAddress			KEYWORD2
+isConnected				KEYWORD2
+readScratchPad			KEYWORD2
+writeScratchPad			KEYWORD2
+readPowerSupply			KEYWORD2
+setHighAlarmTemp		KEYWORD2
+setLowAlarmTemp			KEYWORD2
+getHighAlarmTemp		KEYWORD2
+getLowAlarmTemp			KEYWORD2
+resetAlarmSearch		KEYWORD2
+alarmSearch				KEYWORD2
+hasAlarm				KEYWORD2
+toCelsius				KEYWORD2
+processAlarmss			KEYWORD2
+setAlarmHandlers		KEYWORD2
+defaultAlarmHandler		KEYWORD2
+calculateTemperature	KEYWORD2
+
+#######################################
+# Constants (LITERAL1)
+#######################################
+

libraries/DallasTemperature/library.json

@@ -0,0 +1,40 @@
+{
+  "name": "DallasTemperature",
+  "keywords": "onewire, 1-wire, bus, sensor, temperature",
+  "description": "Arduino Library for Dallas Temperature ICs (DS18B20, DS18S20, DS1822, DS1820)",
+  "repository":
+  {
+    "type": "git",
+    "url": "https://github.com/milesburton/Arduino-Temperature-Control-Library.git"
+  },
+  "authors": 
+  [
+    {
+      "name": "Miles Burton",
+      "email": "miles@mnetcs.com",
+      "url": "http://www.milesburton.com",
+      "maintainer": true
+    },
+    {
+      "name": "Tim Newsome",
+      "email": "nuisance@casualhacker.net"
+    },
+    {
+      "name": "Guil Barros",
+      "email": "gfbarros@bappos.com"
+    },
+    {
+      "name": "Rob Tillaart",
+      "email": "rob.tillaart@gmail.com"
+    }
+  ],
+  "dependencies":
+  {
+    "name": "OneWire",
+    "authors": "Paul Stoffregen",
+    "frameworks": "arduino"
+  },
+  "version": "3.7.6",
+  "frameworks": "arduino",
+  "platforms": "*"
+}

libraries/DallasTemperature/library.properties

@@ -0,0 +1,9 @@
+name=DallasTemperature
+version=3.7.6
+author=Miles Burton <miles@mnetcs.com>, Tim Newsome <nuisance@casualhacker.net>, Guil Barros <gfbarros@bappos.com>, Rob Tillaart <rob.tillaart@gmail.com>
+maintainer=Miles Burton <miles@mnetcs.com>
+sentence=Arduino Library for Dallas Temperature ICs
+paragraph=Supports DS18B20, DS18S20, DS1822, DS1820
+category=Sensors
+url=https://github.com/milesburton/Arduino-Temperature-Control-Library
+architectures=*

libraries/Firmata/.gitignore

@@ -0,0 +1 @@
+.DS_Store

libraries/Firmata/Boards.h

@@ -0,0 +1,747 @@
+/*
+  Boards.h - Hardware Abstraction Layer for Firmata library
+  Copyright (c) 2006-2008 Hans-Christoph Steiner.  All rights reserved.
+  Copyright (C) 2009-2015 Jeff Hoefs.  All rights reserved.
+
+  This library is free software; you can redistribute it and/or
+  modify it under the terms of the GNU Lesser General Public
+  License as published by the Free Software Foundation; either
+  version 2.1 of the License, or (at your option) any later version.
+
+  See file LICENSE.txt for further informations on licensing terms.
+
+  Last updated December 19th, 2015
+*/
+
+#ifndef Firmata_Boards_h
+#define Firmata_Boards_h
+
+#include <inttypes.h>
+
+#if defined(ARDUINO) && ARDUINO >= 100
+#include "Arduino.h"  // for digitalRead, digitalWrite, etc
+#else
+#include "WProgram.h"
+#endif
+
+// Normally Servo.h must be included before Firmata.h (which then includes
+// this file).  If Servo.h wasn't included, this allows the code to still
+// compile, but without support for any Servos.  Hopefully that's what the
+// user intended by not including Servo.h
+#ifndef MAX_SERVOS
+#define MAX_SERVOS 0
+#endif
+
+/*
+    Firmata Hardware Abstraction Layer
+
+Firmata is built on top of the hardware abstraction functions of Arduino,
+specifically digitalWrite, digitalRead, analogWrite, analogRead, and
+pinMode.  While these functions offer simple integer pin numbers, Firmata
+needs more information than is provided by Arduino.  This file provides
+all other hardware specific details.  To make Firmata support a new board,
+only this file should require editing.
+
+The key concept is every "pin" implemented by Firmata may be mapped to
+any pin as implemented by Arduino.  Usually a simple 1-to-1 mapping is
+best, but such mapping should not be assumed.  This hardware abstraction
+layer allows Firmata to implement any number of pins which map onto the
+Arduino implemented pins in almost any arbitrary way.
+
+
+General Constants:
+
+These constants provide basic information Firmata requires.
+
+TOTAL_PINS: The total number of pins Firmata implemented by Firmata.
+    Usually this will match the number of pins the Arduino functions
+    implement, including any pins pins capable of analog or digital.
+    However, Firmata may implement any number of pins.  For example,
+    on Arduino Mini with 8 analog inputs, 6 of these may be used
+    for digital functions, and 2 are analog only.  On such boards,
+    Firmata can implement more pins than Arduino's pinMode()
+    function, in order to accommodate those special pins.  The
+    Firmata protocol supports a maximum of 128 pins, so this
+    constant must not exceed 128.
+
+TOTAL_ANALOG_PINS: The total number of analog input pins implemented.
+    The Firmata protocol allows up to 16 analog inputs, accessed
+    using offsets 0 to 15.  Because Firmata presents the analog
+    inputs using different offsets than the actual pin numbers
+    (a legacy of Arduino's analogRead function, and the way the
+    analog input capable pins are physically labeled on all
+    Arduino boards), the total number of analog input signals
+    must be specified.  16 is the maximum.
+
+VERSION_BLINK_PIN: When Firmata starts up, it will blink the version
+    number.  This constant is the Arduino pin number where a
+    LED is connected.
+
+
+Pin Mapping Macros:
+
+These macros provide the mapping between pins as implemented by
+Firmata protocol and the actual pin numbers used by the Arduino
+functions.  Even though such mappings are often simple, pin
+numbers received by Firmata protocol should always be used as
+input to these macros, and the result of the macro should be
+used with with any Arduino function.
+
+When Firmata is extended to support a new pin mode or feature,
+a pair of macros should be added and used for all hardware
+access.  For simple 1:1 mapping, these macros add no actual
+overhead, yet their consistent use allows source code which
+uses them consistently to be easily adapted to all other boards
+with different requirements.
+
+IS_PIN_XXXX(pin): The IS_PIN macros resolve to true or non-zero
+    if a pin as implemented by Firmata corresponds to a pin
+    that actually implements the named feature.
+
+PIN_TO_XXXX(pin): The PIN_TO macros translate pin numbers as
+    implemented by Firmata to the pin numbers needed as inputs
+    to the Arduino functions.  The corresponding IS_PIN macro
+    should always be tested before using a PIN_TO macro, so
+    these macros only need to handle valid Firmata pin
+    numbers for the named feature.
+
+
+Port Access Inline Funtions:
+
+For efficiency, Firmata protocol provides access to digital
+input and output pins grouped by 8 bit ports.  When these
+groups of 8 correspond to actual 8 bit ports as implemented
+by the hardware, these inline functions can provide high
+speed direct port access.  Otherwise, a default implementation
+using 8 calls to digitalWrite or digitalRead is used.
+
+When porting Firmata to a new board, it is recommended to
+use the default functions first and focus only on the constants
+and macros above.  When those are working, if optimized port
+access is desired, these inline functions may be extended.
+The recommended approach defines a symbol indicating which
+optimization to use, and then conditional complication is
+used within these functions.
+
+readPort(port, bitmask):  Read an 8 bit port, returning the value.
+   port:    The port number, Firmata pins port*8 to port*8+7
+   bitmask: The actual pins to read, indicated by 1 bits.
+
+writePort(port, value, bitmask):  Write an 8 bit port.
+   port:    The port number, Firmata pins port*8 to port*8+7
+   value:   The 8 bit value to write
+   bitmask: The actual pins to write, indicated by 1 bits.
+*/
+
+/*==============================================================================
+ * Board Specific Configuration
+ *============================================================================*/
+
+#ifndef digitalPinHasPWM
+#define digitalPinHasPWM(p)     IS_PIN_DIGITAL(p)
+#endif
+
+// Arduino Duemilanove, Diecimila, and NG
+#if defined(__AVR_ATmega168__) || defined(__AVR_ATmega328P__) || defined(__AVR_ATmega328__)
+#if defined(NUM_ANALOG_INPUTS) && NUM_ANALOG_INPUTS == 6
+#define TOTAL_ANALOG_PINS       6
+#define TOTAL_PINS              20 // 14 digital + 6 analog
+#else
+#define TOTAL_ANALOG_PINS       8
+#define TOTAL_PINS              22 // 14 digital + 8 analog
+#endif
+#define VERSION_BLINK_PIN       13
+#define IS_PIN_DIGITAL(p)       ((p) >= 2 && (p) <= 19)
+#define IS_PIN_ANALOG(p)        ((p) >= 14 && (p) < 14 + TOTAL_ANALOG_PINS)
+#define IS_PIN_PWM(p)           digitalPinHasPWM(p)
+#define IS_PIN_SERVO(p)         (IS_PIN_DIGITAL(p) && (p) - 2 < MAX_SERVOS)
+#define IS_PIN_I2C(p)           ((p) == 18 || (p) == 19)
+#define IS_PIN_SPI(p)           ((p) == SS || (p) == MOSI || (p) == MISO || (p) == SCK)
+#define PIN_TO_DIGITAL(p)       (p)
+#define PIN_TO_ANALOG(p)        ((p) - 14)
+#define PIN_TO_PWM(p)           PIN_TO_DIGITAL(p)
+#define PIN_TO_SERVO(p)         ((p) - 2)
+#define ARDUINO_PINOUT_OPTIMIZE 1
+
+
+// Wiring (and board)
+#elif defined(WIRING)
+#define VERSION_BLINK_PIN       WLED
+#define IS_PIN_DIGITAL(p)       ((p) >= 0 && (p) < TOTAL_PINS)
+#define IS_PIN_ANALOG(p)        ((p) >= FIRST_ANALOG_PIN && (p) < (FIRST_ANALOG_PIN+TOTAL_ANALOG_PINS))
+#define IS_PIN_PWM(p)           digitalPinHasPWM(p)
+#define IS_PIN_SERVO(p)         ((p) >= 0 && (p) < MAX_SERVOS)
+#define IS_PIN_I2C(p)           ((p) == SDA || (p) == SCL)
+#define IS_PIN_SPI(p)           ((p) == SS || (p) == MOSI || (p) == MISO || (p) == SCK)
+#define PIN_TO_DIGITAL(p)       (p)
+#define PIN_TO_ANALOG(p)        ((p) - FIRST_ANALOG_PIN)
+#define PIN_TO_PWM(p)           PIN_TO_DIGITAL(p)
+#define PIN_TO_SERVO(p)         (p)
+
+
+// old Arduinos
+#elif defined(__AVR_ATmega8__)
+#define TOTAL_ANALOG_PINS       6
+#define TOTAL_PINS              20 // 14 digital + 6 analog
+#define VERSION_BLINK_PIN       13
+#define IS_PIN_DIGITAL(p)       ((p) >= 2 && (p) <= 19)
+#define IS_PIN_ANALOG(p)        ((p) >= 14 && (p) <= 19)
+#define IS_PIN_PWM(p)           digitalPinHasPWM(p)
+#define IS_PIN_SERVO(p)         (IS_PIN_DIGITAL(p) && (p) - 2 < MAX_SERVOS)
+#define IS_PIN_I2C(p)           ((p) == 18 || (p) == 19)
+#define PIN_TO_DIGITAL(p)       (p)
+#define PIN_TO_ANALOG(p)        ((p) - 14)
+#define PIN_TO_PWM(p)           PIN_TO_DIGITAL(p)
+#define PIN_TO_SERVO(p)         ((p) - 2)
+#define ARDUINO_PINOUT_OPTIMIZE 1
+
+
+// Arduino Mega
+#elif defined(__AVR_ATmega1280__) || defined(__AVR_ATmega2560__)
+#define TOTAL_ANALOG_PINS       16
+#define TOTAL_PINS              70 // 54 digital + 16 analog
+#define VERSION_BLINK_PIN       13
+#define PIN_SERIAL1_RX          19
+#define PIN_SERIAL1_TX          18
+#define PIN_SERIAL2_RX          17
+#define PIN_SERIAL2_TX          16
+#define PIN_SERIAL3_RX          15
+#define PIN_SERIAL3_TX          14
+#define IS_PIN_DIGITAL(p)       ((p) >= 2 && (p) < TOTAL_PINS)
+#define IS_PIN_ANALOG(p)        ((p) >= 54 && (p) < TOTAL_PINS)
+#define IS_PIN_PWM(p)           digitalPinHasPWM(p)
+#define IS_PIN_SERVO(p)         ((p) >= 2 && (p) - 2 < MAX_SERVOS)
+#define IS_PIN_I2C(p)           ((p) == 20 || (p) == 21)
+#define IS_PIN_SPI(p)           ((p) == SS || (p) == MOSI || (p) == MISO || (p) == SCK)
+#define IS_PIN_SERIAL(p)        ((p) > 13 && (p) < 20)
+#define PIN_TO_DIGITAL(p)       (p)
+#define PIN_TO_ANALOG(p)        ((p) - 54)
+#define PIN_TO_PWM(p)           PIN_TO_DIGITAL(p)
+#define PIN_TO_SERVO(p)         ((p) - 2)
+
+
+// Arduino DUE
+#elif defined(__SAM3X8E__)
+#define TOTAL_ANALOG_PINS       12
+#define TOTAL_PINS              66 // 54 digital + 12 analog
+#define VERSION_BLINK_PIN       13
+#define PIN_SERIAL1_RX          19
+#define PIN_SERIAL1_TX          18
+#define PIN_SERIAL2_RX          17
+#define PIN_SERIAL2_TX          16
+#define PIN_SERIAL3_RX          15
+#define PIN_SERIAL3_TX          14
+#define IS_PIN_DIGITAL(p)       ((p) >= 2 && (p) < TOTAL_PINS)
+#define IS_PIN_ANALOG(p)        ((p) >= 54 && (p) < TOTAL_PINS)
+#define IS_PIN_PWM(p)           digitalPinHasPWM(p)
+#define IS_PIN_SERVO(p)         ((p) >= 2 && (p) - 2 < MAX_SERVOS)
+#define IS_PIN_I2C(p)           ((p) == 20 || (p) == 21) // 70 71
+#define IS_PIN_SERIAL(p)        ((p) > 13 && (p) < 20)
+#define PIN_TO_DIGITAL(p)       (p)
+#define PIN_TO_ANALOG(p)        ((p) - 54)
+#define PIN_TO_PWM(p)           PIN_TO_DIGITAL(p)
+#define PIN_TO_SERVO(p)         ((p) - 2)
+
+
+// Arduino Zero
+// Note this will work with an Arduino Zero Pro, but not with an Arduino M0 Pro
+// Arduino M0 Pro does not properly map pins to the board labeled pin numbers
+#elif defined(_VARIANT_ARDUINO_ZERO_)
+#define TOTAL_ANALOG_PINS       6
+#define TOTAL_PINS              25 // 14 digital + 6 analog + 2 i2c + 3 spi
+#define TOTAL_PORTS             3  // set when TOTAL_PINS > num digitial I/O pins
+#define VERSION_BLINK_PIN       LED_BUILTIN
+//#define PIN_SERIAL1_RX          0 // already defined in zero core variant.h
+//#define PIN_SERIAL1_TX          1 // already defined in zero core variant.h
+#define IS_PIN_DIGITAL(p)       ((p) >= 0 && (p) <= 19)
+#define IS_PIN_ANALOG(p)        ((p) >= 14 && (p) < 14 + TOTAL_ANALOG_PINS)
+#define IS_PIN_PWM(p)           digitalPinHasPWM(p)
+#define IS_PIN_SERVO(p)         (IS_PIN_DIGITAL(p) && (p) < MAX_SERVOS) // deprecated since v2.4
+#define IS_PIN_I2C(p)           ((p) == 20 || (p) == 21) // SDA = 20, SCL = 21
+#define IS_PIN_SPI(p)           ((p) == SS || (p) == MOSI || (p) == MISO || (p) == SCK) // SS = A2
+#define IS_PIN_SERIAL(p)        ((p) == 0 || (p) == 1)
+#define PIN_TO_DIGITAL(p)       (p)
+#define PIN_TO_ANALOG(p)        ((p) - 14)
+#define PIN_TO_PWM(p)           PIN_TO_DIGITAL(p)
+#define PIN_TO_SERVO(p)         (p) // deprecated since v2.4
+
+
+// Arduino 101
+#elif defined(_VARIANT_ARDUINO_101_X_)
+#define TOTAL_ANALOG_PINS       NUM_ANALOG_INPUTS
+#define TOTAL_PINS              NUM_DIGITAL_PINS // 15 digital (including ATN pin) + 6 analog
+#define VERSION_BLINK_PIN       LED_BUILTIN
+#define PIN_SERIAL1_RX          0
+#define PIN_SERIAL1_TX          1
+#define IS_PIN_DIGITAL(p)       ((p) >= 0 && (p) <= 20)
+#define IS_PIN_ANALOG(p)        ((p) >= 14 && (p) < 14 + TOTAL_ANALOG_PINS)
+#define IS_PIN_PWM(p)           digitalPinHasPWM(p) // 3, 5, 6, 9
+#define IS_PIN_SERVO(p)         (IS_PIN_DIGITAL(p) && (p) < MAX_SERVOS) // deprecated since v2.4
+#define IS_PIN_I2C(p)           ((p) == SDA || (p) == SCL) // SDA = 18, SCL = 19
+#define IS_PIN_SPI(p)           ((p) == SS || (p) == MOSI || (p) == MISO || (p) == SCK)
+#define IS_PIN_SERIAL(p)        ((p) == 0 || (p) == 1)
+#define PIN_TO_DIGITAL(p)       (p)
+#define PIN_TO_ANALOG(p)        ((p) - 14)
+#define PIN_TO_PWM(p)           PIN_TO_DIGITAL(p)
+#define PIN_TO_SERVO(p)         (p) // deprecated since v2.4
+
+
+// Teensy 1.0
+#elif defined(__AVR_AT90USB162__)
+#define TOTAL_ANALOG_PINS       0
+#define TOTAL_PINS              21 // 21 digital + no analog
+#define VERSION_BLINK_PIN       6
+#define PIN_SERIAL1_RX          2
+#define PIN_SERIAL1_TX          3
+#define IS_PIN_DIGITAL(p)       ((p) >= 0 && (p) < TOTAL_PINS)
+#define IS_PIN_ANALOG(p)        (0)
+#define IS_PIN_PWM(p)           digitalPinHasPWM(p)
+#define IS_PIN_SERVO(p)         ((p) >= 0 && (p) < MAX_SERVOS)
+#define IS_PIN_I2C(p)           (0)
+#define IS_PIN_SPI(p)           ((p) == SS || (p) == MOSI || (p) == MISO || (p) == SCK)
+#define IS_PIN_SERIAL(p)        ((p) == 2 || (p) == 3)
+#define PIN_TO_DIGITAL(p)       (p)
+#define PIN_TO_ANALOG(p)        (0)
+#define PIN_TO_PWM(p)           PIN_TO_DIGITAL(p)
+#define PIN_TO_SERVO(p)         (p)
+
+
+// Teensy 2.0
+#elif defined(__AVR_ATmega32U4__) && defined(CORE_TEENSY)
+#define TOTAL_ANALOG_PINS       12
+#define TOTAL_PINS              25 // 11 digital + 12 analog
+#define VERSION_BLINK_PIN       11
+#define PIN_SERIAL1_RX          7
+#define PIN_SERIAL1_TX          8
+#define IS_PIN_DIGITAL(p)       ((p) >= 0 && (p) < TOTAL_PINS)
+#define IS_PIN_ANALOG(p)        ((p) >= 11 && (p) <= 22)
+#define IS_PIN_PWM(p)           digitalPinHasPWM(p)
+#define IS_PIN_SERVO(p)         ((p) >= 0 && (p) < MAX_SERVOS)
+#define IS_PIN_I2C(p)           ((p) == 5 || (p) == 6)
+#define IS_PIN_SPI(p)           ((p) == SS || (p) == MOSI || (p) == MISO || (p) == SCK)
+#define IS_PIN_SERIAL(p)        ((p) == 7 || (p) == 8)
+#define PIN_TO_DIGITAL(p)       (p)
+#define PIN_TO_ANALOG(p)        (((p) < 22) ? 21 - (p) : 11)
+#define PIN_TO_PWM(p)           PIN_TO_DIGITAL(p)
+#define PIN_TO_SERVO(p)         (p)
+
+
+// Teensy 3.0, 3.1 and 3.2
+#elif defined(__MK20DX128__) || defined(__MK20DX256__)
+#define TOTAL_ANALOG_PINS       14
+#define TOTAL_PINS              38 // 24 digital + 10 analog-digital + 4 analog
+#define VERSION_BLINK_PIN       13
+#define PIN_SERIAL1_RX          0
+#define PIN_SERIAL1_TX          1
+#define PIN_SERIAL2_RX          9
+#define PIN_SERIAL2_TX          10
+#define PIN_SERIAL3_RX          7
+#define PIN_SERIAL3_TX          8
+#define IS_PIN_DIGITAL(p)       ((p) >= 0 && (p) <= 33)
+#define IS_PIN_ANALOG(p)        (((p) >= 14 && (p) <= 23) || ((p) >= 34 && (p) <= 38))
+#define IS_PIN_PWM(p)           digitalPinHasPWM(p)
+#define IS_PIN_SERVO(p)         ((p) >= 0 && (p) < MAX_SERVOS)
+#define IS_PIN_I2C(p)           ((p) == 18 || (p) == 19)
+#define IS_PIN_SERIAL(p)        (((p) > 6 && (p) < 11) || ((p) == 0 || (p) == 1))
+#define PIN_TO_DIGITAL(p)       (p)
+#define PIN_TO_ANALOG(p)        (((p) <= 23) ? (p) - 14 : (p) - 24)
+#define PIN_TO_PWM(p)           PIN_TO_DIGITAL(p)
+#define PIN_TO_SERVO(p)         (p)
+
+
+// Teensy-LC
+#elif defined(__MKL26Z64__)
+#define TOTAL_ANALOG_PINS       13
+#define TOTAL_PINS              27 // 27 digital + 13 analog-digital
+#define VERSION_BLINK_PIN       13
+#define PIN_SERIAL1_RX          0
+#define PIN_SERIAL1_TX          1
+#define PIN_SERIAL2_RX          9
+#define PIN_SERIAL2_TX          10
+#define PIN_SERIAL3_RX          7
+#define PIN_SERIAL3_TX          8
+#define IS_PIN_DIGITAL(p)       ((p) >= 0 && (p) <= 26)
+#define IS_PIN_ANALOG(p)        ((p) >= 14)
+#define IS_PIN_PWM(p)           digitalPinHasPWM(p)
+#define IS_PIN_SERVO(p)         ((p) >= 0 && (p) < MAX_SERVOS)
+#define IS_PIN_I2C(p)           ((p) == 18 || (p) == 19)
+#define IS_PIN_SERIAL(p)        (((p) > 6 && (p) < 11) || ((p) == 0 || (p) == 1))
+#define PIN_TO_DIGITAL(p)       (p)
+#define PIN_TO_ANALOG(p)        ((p) - 14)
+#define PIN_TO_PWM(p)           PIN_TO_DIGITAL(p)
+#define PIN_TO_SERVO(p)         (p)
+
+
+// Teensy++ 1.0 and 2.0
+#elif defined(__AVR_AT90USB646__) || defined(__AVR_AT90USB1286__)
+#define TOTAL_ANALOG_PINS       8
+#define TOTAL_PINS              46 // 38 digital + 8 analog
+#define VERSION_BLINK_PIN       6
+#define PIN_SERIAL1_RX          2
+#define PIN_SERIAL1_TX          3
+#define IS_PIN_DIGITAL(p)       ((p) >= 0 && (p) < TOTAL_PINS)
+#define IS_PIN_ANALOG(p)        ((p) >= 38 && (p) < TOTAL_PINS)
+#define IS_PIN_PWM(p)           digitalPinHasPWM(p)
+#define IS_PIN_SERVO(p)         ((p) >= 0 && (p) < MAX_SERVOS)
+#define IS_PIN_I2C(p)           ((p) == 0 || (p) == 1)
+#define IS_PIN_SPI(p)           ((p) == SS || (p) == MOSI || (p) == MISO || (p) == SCK)
+#define IS_PIN_SERIAL(p)        ((p) == 2 || (p) == 3)
+#define PIN_TO_DIGITAL(p)       (p)
+#define PIN_TO_ANALOG(p)        ((p) - 38)
+#define PIN_TO_PWM(p)           PIN_TO_DIGITAL(p)
+#define PIN_TO_SERVO(p)         (p)
+
+
+// Leonardo
+#elif defined(__AVR_ATmega32U4__)
+#define TOTAL_ANALOG_PINS       12
+#define TOTAL_PINS              30 // 14 digital + 12 analog + 4 SPI (D14-D17 on ISP header)
+#define VERSION_BLINK_PIN       13
+#define PIN_SERIAL1_RX          0
+#define PIN_SERIAL1_TX          1
+#define IS_PIN_DIGITAL(p)       ((p) >= 0 && (p) < TOTAL_PINS)
+#define IS_PIN_ANALOG(p)        ((p) >= 18 && (p) < TOTAL_PINS)
+#define IS_PIN_PWM(p)           ((p) == 3 || (p) == 5 || (p) == 6 || (p) == 9 || (p) == 10 || (p) == 11 || (p) == 13)
+#define IS_PIN_SERVO(p)         ((p) >= 0 && (p) < MAX_SERVOS)
+#define IS_PIN_I2C(p)           ((p) == 2 || (p) == 3)
+#define IS_PIN_SPI(p)           ((p) == SS || (p) == MOSI || (p) == MISO || (p) == SCK)
+#define IS_PIN_SERIAL(p)        ((p) == 0 || (p) == 1)
+#define PIN_TO_DIGITAL(p)       (p)
+#define PIN_TO_ANALOG(p)        (p) - 18
+#define PIN_TO_PWM(p)           PIN_TO_DIGITAL(p)
+#define PIN_TO_SERVO(p)         (p)
+
+
+// Intel Galileo Board (gen 1 and 2) and Intel Edison
+#elif defined(ARDUINO_LINUX)
+#define TOTAL_ANALOG_PINS       6
+#define TOTAL_PINS              20 // 14 digital + 6 analog
+#define VERSION_BLINK_PIN       13
+#define PIN_SERIAL1_RX          0
+#define PIN_SERIAL1_TX          1
+#define IS_PIN_DIGITAL(p)       ((p) >= 2 && (p) <= 19)
+#define IS_PIN_ANALOG(p)        ((p) >= 14 && (p) <= 19)
+#define IS_PIN_PWM(p)           digitalPinHasPWM(p)
+#define IS_PIN_SERVO(p)         (IS_PIN_DIGITAL(p) && (p) - 2 < MAX_SERVOS)
+#define IS_PIN_I2C(p)           ((p) == SDA || (p) == SCL)
+#define IS_PIN_SPI(p)           ((p) == SS || (p) == MOSI || (p) == MISO || (p) == SCK)
+#define IS_PIN_SERIAL(p)        ((p) == 0 || (p) == 1)
+#define PIN_TO_DIGITAL(p)       (p)
+#define PIN_TO_ANALOG(p)        ((p) - 14)
+#define PIN_TO_PWM(p)           PIN_TO_DIGITAL(p)
+#define PIN_TO_SERVO(p)         ((p) - 2)
+
+
+// Sanguino
+#elif defined(__AVR_ATmega644P__) || defined(__AVR_ATmega644__)
+#define TOTAL_ANALOG_PINS       8
+#define TOTAL_PINS              32 // 24 digital + 8 analog
+#define VERSION_BLINK_PIN       0
+#define IS_PIN_DIGITAL(p)       ((p) >= 2 && (p) < TOTAL_PINS)
+#define IS_PIN_ANALOG(p)        ((p) >= 24 && (p) < TOTAL_PINS)
+#define IS_PIN_PWM(p)           digitalPinHasPWM(p)
+#define IS_PIN_SERVO(p)         ((p) >= 0 && (p) < MAX_SERVOS)
+#define IS_PIN_I2C(p)           ((p) == 16 || (p) == 17)
+#define PIN_TO_DIGITAL(p)       (p)
+#define PIN_TO_ANALOG(p)        ((p) - 24)
+#define PIN_TO_PWM(p)           PIN_TO_DIGITAL(p)
+#define PIN_TO_SERVO(p)         ((p) - 2)
+
+
+// Illuminato
+#elif defined(__AVR_ATmega645__)
+#define TOTAL_ANALOG_PINS       6
+#define TOTAL_PINS              42 // 36 digital + 6 analog
+#define VERSION_BLINK_PIN       13
+#define IS_PIN_DIGITAL(p)       ((p) >= 2 && (p) < TOTAL_PINS)
+#define IS_PIN_ANALOG(p)        ((p) >= 36 && (p) < TOTAL_PINS)
+#define IS_PIN_PWM(p)           digitalPinHasPWM(p)
+#define IS_PIN_SERVO(p)         ((p) >= 0 && (p) < MAX_SERVOS)
+#define IS_PIN_I2C(p)           ((p) == 4 || (p) == 5)
+#define PIN_TO_DIGITAL(p)       (p)
+#define PIN_TO_ANALOG(p)        ((p) - 36)
+#define PIN_TO_PWM(p)           PIN_TO_DIGITAL(p)
+#define PIN_TO_SERVO(p)         ((p) - 2)
+
+
+// Pic32 chipKIT FubarinoSD
+#elif defined(_BOARD_FUBARINO_SD_)
+#define TOTAL_ANALOG_PINS       NUM_ANALOG_PINS  // 15
+#define TOTAL_PINS              NUM_DIGITAL_PINS // 45, All pins can be digital
+#define MAX_SERVOS              NUM_DIGITAL_PINS
+#define VERSION_BLINK_PIN       PIN_LED1
+#define IS_PIN_DIGITAL(p)       1
+#define IS_PIN_ANALOG(p)        ((p) >= 30 && (p) <= 44)
+#define IS_PIN_PWM(p)           IS_PIN_DIGITAL(p)
+#define IS_PIN_SERVO(p)         IS_PIN_DIGITAL(p)
+#define IS_PIN_I2C(p)           ((p) == 1 || (p) == 2)
+#define IS_PIN_SPI(p)           ((p) == SS || (p) == MOSI || (p) == MISO || (p) == SCK)
+#define PIN_TO_DIGITAL(p)       (p)
+#define PIN_TO_ANALOG(p)        (14 - (p - 30))
+#define PIN_TO_PWM(p)           (p)
+#define PIN_TO_SERVO(p)         (p)
+
+
+// Pic32 chipKIT FubarinoMini
+// Note, FubarinoMini analog pin 20 will not function in Firmata as analog input due to limitation in analog mapping
+#elif defined(_BOARD_FUBARINO_MINI_)
+#define TOTAL_ANALOG_PINS       14 // We have to fake this because of the poor analog pin mapping planning in FubarinoMini
+#define TOTAL_PINS              NUM_DIGITAL_PINS // 33
+#define MAX_SERVOS              NUM_DIGITAL_PINS
+#define VERSION_BLINK_PIN       PIN_LED1
+#define IS_PIN_DIGITAL(p)       ((p) != 14 && (p) != 15 && (p) != 31 && (p) != 32)
+#define IS_PIN_ANALOG(p)        ((p) == 0 || ((p) >= 3 && (p) <= 13))
+#define IS_PIN_PWM(p)           IS_PIN_DIGITAL(p)
+#define IS_PIN_SERVO(p)         IS_PIN_DIGITAL(p)
+#define IS_PIN_I2C(p)           ((p) == 25 || (p) == 26)
+#define IS_PIN_SPI(p)           ((p) == SS || (p) == MOSI || (p) == MISO || (p) == SCK)
+#define PIN_TO_DIGITAL(p)       (p)
+#define PIN_TO_ANALOG(p)        (p)
+#define PIN_TO_PWM(p)           (p)
+#define PIN_TO_SERVO(p)         (p)
+
+
+// Pic32 chipKIT UNO32
+#elif defined(_BOARD_UNO_) && defined(__PIC32)  // NOTE: no _BOARD_UNO32_ to use
+#define TOTAL_ANALOG_PINS       NUM_ANALOG_PINS // 12
+#define TOTAL_PINS              NUM_DIGITAL_PINS // 47 All pins can be digital
+#define MAX_SERVOS              NUM_DIGITAL_PINS // All pins can be servo with SoftPWMservo
+#define VERSION_BLINK_PIN       PIN_LED1
+#define IS_PIN_DIGITAL(p)       ((p) >= 2)
+#define IS_PIN_ANALOG(p)        ((p) >= 14 && (p) <= 25)
+#define IS_PIN_PWM(p)           IS_PIN_DIGITAL(p)
+#define IS_PIN_SERVO(p)         IS_PIN_DIGITAL(p)
+#define IS_PIN_I2C(p)           ((p) == 45 || (p) == 46)
+#define IS_PIN_SPI(p)           ((p) == SS || (p) == MOSI || (p) == MISO || (p) == SCK)
+#define PIN_TO_DIGITAL(p)       (p)
+#define PIN_TO_ANALOG(p)        ((p) - 14)
+#define PIN_TO_PWM(p)           (p)
+#define PIN_TO_SERVO(p)         (p)
+
+
+// Pic32 chipKIT DP32
+#elif defined(_BOARD_DP32_)
+#define TOTAL_ANALOG_PINS       15  // Really only has 9, but have to override because of mistake in variant file
+#define TOTAL_PINS              NUM_DIGITAL_PINS // 19
+#define MAX_SERVOS              NUM_DIGITAL_PINS // All pins can be servo with SoftPWMservo
+#define VERSION_BLINK_PIN       PIN_LED1
+#define IS_PIN_DIGITAL(p)       (((p) != 1) && ((p) != 4) && ((p) != 5) && ((p) != 15) && ((p) != 16))
+#define IS_PIN_ANALOG(p)        ((p) >= 6 && (p) <= 14)
+#define IS_PIN_PWM(p)           IS_PIN_DIGITAL(p)
+#define IS_PIN_SERVO(p)         IS_PIN_DIGITAL(p)
+#define IS_PIN_I2C(p)           ((p) == 2 || (p) == 3)
+#define IS_PIN_SPI(p)           ((p) == SS || (p) == MOSI || (p) == MISO || (p) == SCK)
+#define PIN_TO_DIGITAL(p)       (p)
+#define PIN_TO_ANALOG(p)        (p)
+#define PIN_TO_PWM(p)           (p)
+#define PIN_TO_SERVO(p)         (p)
+
+
+// Pic32 chipKIT uC32
+#elif defined(_BOARD_UC32_)
+#define TOTAL_ANALOG_PINS       NUM_ANALOG_PINS  // 12
+#define TOTAL_PINS              NUM_DIGITAL_PINS // 47 All pins can be digital
+#define MAX_SERVOS              NUM_DIGITAL_PINS // All pins can be servo with SoftPWMservo
+#define VERSION_BLINK_PIN       PIN_LED1
+#define IS_PIN_DIGITAL(p)       ((p) >= 2)
+#define IS_PIN_ANALOG(p)        ((p) >= 14 && (p) <= 25)
+#define IS_PIN_PWM(p)           IS_PIN_DIGITAL(p)
+#define IS_PIN_SERVO(p)         IS_PIN_DIGITAL(p)
+#define IS_PIN_I2C(p)           ((p) == 45 || (p) == 46)
+#define IS_PIN_SPI(p)           ((p) == SS || (p) == MOSI || (p) == MISO || (p) == SCK)
+#define PIN_TO_DIGITAL(p)       (p)
+#define PIN_TO_ANALOG(p)        ((p) - 14)
+#define PIN_TO_PWM(p)           (p)
+#define PIN_TO_SERVO(p)         (p)
+
+
+// Pic32 chipKIT WF32
+#elif defined(_BOARD_WF32_)
+#define TOTAL_ANALOG_PINS       NUM_ANALOG_PINS
+#define TOTAL_PINS              NUM_DIGITAL_PINS
+#define MAX_SERVOS              NUM_DIGITAL_PINS
+#define VERSION_BLINK_PIN       PIN_LED1
+#define IS_PIN_DIGITAL(p)       ((p) >= 2 && (p) <= 49)     // Accounts for SD and WiFi dedicated pins
+#define IS_PIN_ANALOG(p)        ((p) >= 14 && (p) <= 25)
+#define IS_PIN_PWM(p)           IS_PIN_DIGITAL(p)
+#define IS_PIN_SERVO(p)         IS_PIN_DIGITAL(p)
+#define IS_PIN_I2C(p)           ((p) == 34 || (p) == 35)
+#define IS_PIN_SPI(p)           ((p) == SS || (p) == MOSI || (p) == MISO || (p) == SCK)
+#define PIN_TO_DIGITAL(p)       (p)
+#define PIN_TO_ANALOG(p)        ((p) - 14)
+#define PIN_TO_PWM(p)           (p)
+#define PIN_TO_SERVO(p)         (p)
+
+
+// Pic32 chipKIT WiFire
+#elif defined(_BOARD_WIFIRE_)
+#define TOTAL_ANALOG_PINS       NUM_ANALOG_PINS  // 14
+#define TOTAL_PINS              NUM_DIGITAL_PINS // 71
+#define MAX_SERVOS              NUM_DIGITAL_PINS
+#define VERSION_BLINK_PIN       PIN_LED1
+#define IS_PIN_DIGITAL(p)       ((p) >= 2 && (p) <= 47)     // Accounts for SD and WiFi dedicated pins
+#define IS_PIN_ANALOG(p)        ((p) >= 14 && (p) <= 25)
+#define IS_PIN_PWM(p)           IS_PIN_DIGITAL(p)
+#define IS_PIN_SERVO(p)         IS_PIN_DIGITAL(p)
+#define IS_PIN_I2C(p)           ((p) == 34 || (p) == 35)
+#define IS_PIN_SPI(p)           ((p) == SS || (p) == MOSI || (p) == MISO || (p) == SCK)
+#define PIN_TO_DIGITAL(p)       (p)
+#define PIN_TO_ANALOG(p)        ((p) <= 25 ? ((p) - 14) : (p) - 36)
+#define PIN_TO_PWM(p)           (p)
+#define PIN_TO_SERVO(p)         (p)
+
+
+// Pic32 chipKIT MAX32
+#elif defined(_BOARD_MEGA_) && defined(__PIC32)  // NOTE: no _BOARD_MAX32_ to use
+#define TOTAL_ANALOG_PINS       NUM_ANALOG_PINS  // 16
+#define TOTAL_PINS              NUM_DIGITAL_PINS // 87
+#define MAX_SERVOS              NUM_DIGITAL_PINS
+#define VERSION_BLINK_PIN       PIN_LED1
+#define IS_PIN_DIGITAL(p)       ((p) >= 2)
+#define IS_PIN_ANALOG(p)        ((p) >= 54 && (p) <= 69)
+#define IS_PIN_PWM(p)           IS_PIN_DIGITAL(p)
+#define IS_PIN_SERVO(p)         IS_PIN_DIGITAL(p)
+#define IS_PIN_I2C(p)           ((p) == 34 || (p) == 35)
+#define IS_PIN_SPI(p)           ((p) == SS || (p) == MOSI || (p) == MISO || (p) == SCK)
+#define PIN_TO_DIGITAL(p)       (p)
+#define PIN_TO_ANALOG(p)        ((p) - 54)
+#define PIN_TO_PWM(p)           (p)
+#define PIN_TO_SERVO(p)         (p)
+
+
+// Pic32 chipKIT Pi
+#elif defined(_BOARD_CHIPKIT_PI_)
+#define TOTAL_ANALOG_PINS       16
+#define TOTAL_PINS              NUM_DIGITAL_PINS // 19
+#define MAX_SERVOS              NUM_DIGITAL_PINS
+#define VERSION_BLINK_PIN       PIN_LED1
+#define IS_PIN_DIGITAL(p)       (((p) >= 2) && ((p) <= 3) || (((p) >= 8) && ((p) <= 13)) || (((p) >= 14) && ((p) <= 17)))
+#define IS_PIN_ANALOG(p)        ((p) >= 14 && (p) <= 17)
+#define IS_PIN_PWM(p)           IS_PIN_DIGITAL(p)
+#define IS_PIN_SERVO(p)         IS_PIN_DIGITAL(p)
+#define IS_PIN_I2C(p)           ((p) == 16 || (p) == 17)
+#define IS_PIN_SPI(p)           ((p) == SS || (p) == MOSI || (p) == MISO || (p) == SCK)
+#define PIN_TO_DIGITAL(p)       (p)
+#define PIN_TO_ANALOG(p)        ((p) <= 15 ? (p) - 14 : (p) - 12)
+//#define PIN_TO_ANALOG(p)        (((p) <= 16) ? ((p) - 14) : ((p) - 16))
+#define PIN_TO_PWM(p)           (p)
+#define PIN_TO_SERVO(p)         (p)
+
+// Pinoccio Scout
+// Note: digital pins 9-16 are usable but not labeled on the board numerically.
+// SS=9, MOSI=10, MISO=11, SCK=12, RX1=13, TX1=14, SCL=15, SDA=16
+#elif defined(ARDUINO_PINOCCIO)
+#define TOTAL_ANALOG_PINS       8
+#define TOTAL_PINS              NUM_DIGITAL_PINS // 32
+#define VERSION_BLINK_PIN       23
+#define PIN_SERIAL1_RX          13
+#define PIN_SERIAL1_TX          14
+#define IS_PIN_DIGITAL(p)       (((p) >= 2) && ((p) <= 16)) || (((p) >= 24) && ((p) <= 31))
+#define IS_PIN_ANALOG(p)        ((p) >= 24 && (p) <= 31)
+#define IS_PIN_PWM(p)           digitalPinHasPWM(p)
+#define IS_PIN_SERVO(p)         IS_PIN_DIGITAL(p)
+#define IS_PIN_I2C(p)           ((p) == SCL || (p) == SDA)
+#define IS_PIN_SPI(p)           ((p) == SS || (p) == MOSI || (p) == MISO || (p) == SCK)
+#define IS_PIN_SERIAL(p)        ((p) == 13 || (p) == 14)
+#define PIN_TO_DIGITAL(p)       (p)
+#define PIN_TO_ANALOG(p)        ((p) - 24)
+#define PIN_TO_PWM(p)           PIN_TO_DIGITAL(p)
+#define PIN_TO_SERVO(p)         ((p) - 2)
+
+// anything else
+#else
+#error "Please edit Boards.h with a hardware abstraction for this board"
+#endif
+
+// as long this is not defined for all boards:
+#ifndef IS_PIN_SPI
+#define IS_PIN_SPI(p)           0
+#endif
+
+#ifndef IS_PIN_SERIAL
+#define IS_PIN_SERIAL(p)        0
+#endif
+
+
+/*==============================================================================
+ * readPort() - Read an 8 bit port
+ *============================================================================*/
+
+static inline unsigned char readPort(byte, byte) __attribute__((always_inline, unused));
+static inline unsigned char readPort(byte port, byte bitmask)
+{
+#if defined(ARDUINO_PINOUT_OPTIMIZE)
+  if (port == 0) return (PIND & 0xFC) & bitmask; // ignore Rx/Tx 0/1
+  if (port == 1) return ((PINB & 0x3F) | ((PINC & 0x03) << 6)) & bitmask;
+  if (port == 2) return ((PINC & 0x3C) >> 2) & bitmask;
+  return 0;
+#else
+  unsigned char out = 0, pin = port * 8;
+  if (IS_PIN_DIGITAL(pin + 0) && (bitmask & 0x01) && digitalRead(PIN_TO_DIGITAL(pin + 0))) out |= 0x01;
+  if (IS_PIN_DIGITAL(pin + 1) && (bitmask & 0x02) && digitalRead(PIN_TO_DIGITAL(pin + 1))) out |= 0x02;
+  if (IS_PIN_DIGITAL(pin + 2) && (bitmask & 0x04) && digitalRead(PIN_TO_DIGITAL(pin + 2))) out |= 0x04;
+  if (IS_PIN_DIGITAL(pin + 3) && (bitmask & 0x08) && digitalRead(PIN_TO_DIGITAL(pin + 3))) out |= 0x08;
+  if (IS_PIN_DIGITAL(pin + 4) && (bitmask & 0x10) && digitalRead(PIN_TO_DIGITAL(pin + 4))) out |= 0x10;
+  if (IS_PIN_DIGITAL(pin + 5) && (bitmask & 0x20) && digitalRead(PIN_TO_DIGITAL(pin + 5))) out |= 0x20;
+  if (IS_PIN_DIGITAL(pin + 6) && (bitmask & 0x40) && digitalRead(PIN_TO_DIGITAL(pin + 6))) out |= 0x40;
+  if (IS_PIN_DIGITAL(pin + 7) && (bitmask & 0x80) && digitalRead(PIN_TO_DIGITAL(pin + 7))) out |= 0x80;
+  return out;
+#endif
+}
+
+/*==============================================================================
+ * writePort() - Write an 8 bit port, only touch pins specified by a bitmask
+ *============================================================================*/
+
+static inline unsigned char writePort(byte, byte, byte) __attribute__((always_inline, unused));
+static inline unsigned char writePort(byte port, byte value, byte bitmask)
+{
+#if defined(ARDUINO_PINOUT_OPTIMIZE)
+  if (port == 0) {
+    bitmask = bitmask & 0xFC;  // do not touch Tx & Rx pins
+    byte valD = value & bitmask;
+    byte maskD = ~bitmask;
+    cli();
+    PORTD = (PORTD & maskD) | valD;
+    sei();
+  } else if (port == 1) {
+    byte valB = (value & bitmask) & 0x3F;
+    byte valC = (value & bitmask) >> 6;
+    byte maskB = ~(bitmask & 0x3F);
+    byte maskC = ~((bitmask & 0xC0) >> 6);
+    cli();
+    PORTB = (PORTB & maskB) | valB;
+    PORTC = (PORTC & maskC) | valC;
+    sei();
+  } else if (port == 2) {
+    bitmask = bitmask & 0x0F;
+    byte valC = (value & bitmask) << 2;
+    byte maskC = ~(bitmask << 2);
+    cli();
+    PORTC = (PORTC & maskC) | valC;
+    sei();
+  }
+  return 1;
+#else
+  byte pin = port * 8;
+  if ((bitmask & 0x01)) digitalWrite(PIN_TO_DIGITAL(pin + 0), (value & 0x01));
+  if ((bitmask & 0x02)) digitalWrite(PIN_TO_DIGITAL(pin + 1), (value & 0x02));
+  if ((bitmask & 0x04)) digitalWrite(PIN_TO_DIGITAL(pin + 2), (value & 0x04));
+  if ((bitmask & 0x08)) digitalWrite(PIN_TO_DIGITAL(pin + 3), (value & 0x08));
+  if ((bitmask & 0x10)) digitalWrite(PIN_TO_DIGITAL(pin + 4), (value & 0x10));
+  if ((bitmask & 0x20)) digitalWrite(PIN_TO_DIGITAL(pin + 5), (value & 0x20));
+  if ((bitmask & 0x40)) digitalWrite(PIN_TO_DIGITAL(pin + 6), (value & 0x40));
+  if ((bitmask & 0x80)) digitalWrite(PIN_TO_DIGITAL(pin + 7), (value & 0x80));
+  return 1;
+#endif
+}
+
+
+
+
+#ifndef TOTAL_PORTS
+#define TOTAL_PORTS             ((TOTAL_PINS + 7) / 8)
+#endif
+
+
+#endif /* Firmata_Boards_h */

libraries/Firmata/Firmata.cpp

@@ -0,0 +1,464 @@
+/*
+  Firmata.cpp - Firmata library v2.5.1 - 2015-12-26
+  Copyright (c) 2006-2008 Hans-Christoph Steiner.  All rights reserved.
+  Copyright (C) 2009-2015 Jeff Hoefs.  All rights reserved.
+
+  This library is free software; you can redistribute it and/or
+  modify it under the terms of the GNU Lesser General Public
+  License as published by the Free Software Foundation; either
+  version 2.1 of the License, or (at your option) any later version.
+
+  See file LICENSE.txt for further informations on licensing terms.
+*/
+
+//******************************************************************************
+//* Includes
+//******************************************************************************
+
+#include "Firmata.h"
+#include "HardwareSerial.h"
+
+extern "C" {
+#include <string.h>
+#include <stdlib.h>
+}
+
+//******************************************************************************
+//* Support Functions
+//******************************************************************************
+
+void FirmataClass::sendValueAsTwo7bitBytes(int value)
+{
+  FirmataStream->write(value & B01111111); // LSB
+  FirmataStream->write(value >> 7 & B01111111); // MSB
+}
+
+void FirmataClass::startSysex(void)
+{
+  FirmataStream->write(START_SYSEX);
+}
+
+void FirmataClass::endSysex(void)
+{
+  FirmataStream->write(END_SYSEX);
+}
+
+//******************************************************************************
+//* Constructors
+//******************************************************************************
+
+FirmataClass::FirmataClass()
+{
+  firmwareVersionCount = 0;
+  firmwareVersionVector = 0;
+  systemReset();
+}
+
+//******************************************************************************
+//* Public Methods
+//******************************************************************************
+
+/* begin method with default serial bitrate */
+void FirmataClass::begin(void)
+{
+  begin(57600);
+}
+
+/* begin method for overriding default serial bitrate */
+void FirmataClass::begin(long speed)
+{
+  Serial.begin(speed);
+  FirmataStream = &Serial;
+  blinkVersion();
+  printVersion();
+  printFirmwareVersion();
+}
+
+/* begin method for overriding default stream */
+void FirmataClass::begin(Stream &s)
+{
+  FirmataStream = &s;
+  // do not call blinkVersion() here because some hardware such as the
+  // Ethernet shield use pin 13
+  printVersion();
+  printFirmwareVersion();
+}
+
+// output the protocol version message to the serial port
+void FirmataClass::printVersion(void)
+{
+  FirmataStream->write(REPORT_VERSION);
+  FirmataStream->write(FIRMATA_PROTOCOL_MAJOR_VERSION);
+  FirmataStream->write(FIRMATA_PROTOCOL_MINOR_VERSION);
+}
+
+void FirmataClass::blinkVersion(void)
+{
+#if defined(VERSION_BLINK_PIN)
+  // flash the pin with the protocol version
+  pinMode(VERSION_BLINK_PIN, OUTPUT);
+  strobeBlinkPin(VERSION_BLINK_PIN, FIRMATA_FIRMWARE_MAJOR_VERSION, 40, 210);
+  delay(250);
+  strobeBlinkPin(VERSION_BLINK_PIN, FIRMATA_FIRMWARE_MINOR_VERSION, 40, 210);
+  delay(125);
+#endif
+}
+
+void FirmataClass::printFirmwareVersion(void)
+{
+  byte i;
+
+  if (firmwareVersionCount) { // make sure that the name has been set before reporting
+    startSysex();
+    FirmataStream->write(REPORT_FIRMWARE);
+    FirmataStream->write(firmwareVersionVector[0]); // major version number
+    FirmataStream->write(firmwareVersionVector[1]); // minor version number
+    for (i = 2; i < firmwareVersionCount; ++i) {
+      sendValueAsTwo7bitBytes(firmwareVersionVector[i]);
+    }
+    endSysex();
+  }
+}
+
+void FirmataClass::setFirmwareNameAndVersion(const char *name, byte major, byte minor)
+{
+  const char *firmwareName;
+  const char *extension;
+
+  // parse out ".cpp" and "applet/" that comes from using __FILE__
+  extension = strstr(name, ".cpp");
+  firmwareName = strrchr(name, '/');
+
+  if (!firmwareName) {
+    // windows
+    firmwareName = strrchr(name, '\\');
+  }
+  if (!firmwareName) {
+    // user passed firmware name
+    firmwareName = name;
+  } else {
+    firmwareName ++;
+  }
+
+  if (!extension) {
+    firmwareVersionCount = strlen(firmwareName) + 2;
+  } else {
+    firmwareVersionCount = extension - firmwareName + 2;
+  }
+
+  // in case anyone calls setFirmwareNameAndVersion more than once
+  free(firmwareVersionVector);
+
+  firmwareVersionVector = (byte *) malloc(firmwareVersionCount + 1);
+  firmwareVersionVector[firmwareVersionCount] = 0;
+  firmwareVersionVector[0] = major;
+  firmwareVersionVector[1] = minor;
+  strncpy((char *)firmwareVersionVector + 2, firmwareName, firmwareVersionCount - 2);
+}
+
+//------------------------------------------------------------------------------
+// Serial Receive Handling
+
+int FirmataClass::available(void)
+{
+  return FirmataStream->available();
+}
+
+void FirmataClass::processSysexMessage(void)
+{
+  switch (storedInputData[0]) { //first byte in buffer is command
+    case REPORT_FIRMWARE:
+      printFirmwareVersion();
+      break;
+    case STRING_DATA:
+      if (currentStringCallback) {
+        byte bufferLength = (sysexBytesRead - 1) / 2;
+        byte i = 1;
+        byte j = 0;
+        while (j < bufferLength) {
+          // The string length will only be at most half the size of the
+          // stored input buffer so we can decode the string within the buffer.
+          storedInputData[j] = storedInputData[i];
+          i++;
+          storedInputData[j] += (storedInputData[i] << 7);
+          i++;
+          j++;
+        }
+        // Make sure string is null terminated. This may be the case for data
+        // coming from client libraries in languages that don't null terminate
+        // strings.
+        if (storedInputData[j - 1] != '\0') {
+          storedInputData[j] = '\0';
+        }
+        (*currentStringCallback)((char *)&storedInputData[0]);
+      }
+      break;
+    default:
+      if (currentSysexCallback)
+        (*currentSysexCallback)(storedInputData[0], sysexBytesRead - 1, storedInputData + 1);
+  }
+}
+
+void FirmataClass::processInput(void)
+{
+  int inputData = FirmataStream->read(); // this is 'int' to handle -1 when no data
+  int command;
+
+  // TODO make sure it handles -1 properly
+
+  if (parsingSysex) {
+    if (inputData == END_SYSEX) {
+      //stop sysex byte
+      parsingSysex = false;
+      //fire off handler function
+      processSysexMessage();
+    } else {
+      //normal data byte - add to buffer
+      storedInputData[sysexBytesRead] = inputData;
+      sysexBytesRead++;
+    }
+  } else if ( (waitForData > 0) && (inputData < 128) ) {
+    waitForData--;
+    storedInputData[waitForData] = inputData;
+    if ( (waitForData == 0) && executeMultiByteCommand ) { // got the whole message
+      switch (executeMultiByteCommand) {
+        case ANALOG_MESSAGE:
+          if (currentAnalogCallback) {
+            (*currentAnalogCallback)(multiByteChannel,
+                                     (storedInputData[0] << 7)
+                                     + storedInputData[1]);
+          }
+          break;
+        case DIGITAL_MESSAGE:
+          if (currentDigitalCallback) {
+            (*currentDigitalCallback)(multiByteChannel,
+                                      (storedInputData[0] << 7)
+                                      + storedInputData[1]);
+          }
+          break;
+        case SET_PIN_MODE:
+          if (currentPinModeCallback)
+            (*currentPinModeCallback)(storedInputData[1], storedInputData[0]);
+          break;
+        case SET_DIGITAL_PIN_VALUE:
+          if (currentPinValueCallback)
+            (*currentPinValueCallback)(storedInputData[1], storedInputData[0]);
+          break;
+        case REPORT_ANALOG:
+          if (currentReportAnalogCallback)
+            (*currentReportAnalogCallback)(multiByteChannel, storedInputData[0]);
+          break;
+        case REPORT_DIGITAL:
+          if (currentReportDigitalCallback)
+            (*currentReportDigitalCallback)(multiByteChannel, storedInputData[0]);
+          break;
+      }
+      executeMultiByteCommand = 0;
+    }
+  } else {
+    // remove channel info from command byte if less than 0xF0
+    if (inputData < 0xF0) {
+      command = inputData & 0xF0;
+      multiByteChannel = inputData & 0x0F;
+    } else {
+      command = inputData;
+      // commands in the 0xF* range don't use channel data
+    }
+    switch (command) {
+      case ANALOG_MESSAGE:
+      case DIGITAL_MESSAGE:
+      case SET_PIN_MODE:
+      case SET_DIGITAL_PIN_VALUE:
+        waitForData = 2; // two data bytes needed
+        executeMultiByteCommand = command;
+        break;
+      case REPORT_ANALOG:
+      case REPORT_DIGITAL:
+        waitForData = 1; // one data byte needed
+        executeMultiByteCommand = command;
+        break;
+      case START_SYSEX:
+        parsingSysex = true;
+        sysexBytesRead = 0;
+        break;
+      case SYSTEM_RESET:
+        systemReset();
+        break;
+      case REPORT_VERSION:
+        Firmata.printVersion();
+        break;
+    }
+  }
+}
+
+//------------------------------------------------------------------------------
+// Serial Send Handling
+
+// send an analog message
+void FirmataClass::sendAnalog(byte pin, int value)
+{
+  // pin can only be 0-15, so chop higher bits
+  FirmataStream->write(ANALOG_MESSAGE | (pin & 0xF));
+  sendValueAsTwo7bitBytes(value);
+}
+
+// send a single digital pin in a digital message
+void FirmataClass::sendDigital(byte pin, int value)
+{
+  /* TODO add single pin digital messages to the protocol, this needs to
+   * track the last digital data sent so that it can be sure to change just
+   * one bit in the packet.  This is complicated by the fact that the
+   * numbering of the pins will probably differ on Arduino, Wiring, and
+   * other boards.
+   */
+
+  // TODO: the digital message should not be sent on the serial port every
+  // time sendDigital() is called.  Instead, it should add it to an int
+  // which will be sent on a schedule.  If a pin changes more than once
+  // before the digital message is sent on the serial port, it should send a
+  // digital message for each change.
+
+  //    if(value == 0)
+  //        sendDigitalPortPair();
+}
+
+
+// send 14-bits in a single digital message (protocol v1)
+// send an 8-bit port in a single digital message (protocol v2)
+void FirmataClass::sendDigitalPort(byte portNumber, int portData)
+{
+  FirmataStream->write(DIGITAL_MESSAGE | (portNumber & 0xF));
+  FirmataStream->write((byte)portData % 128); // Tx bits 0-6
+  FirmataStream->write(portData >> 7);  // Tx bits 7-13
+}
+
+void FirmataClass::sendSysex(byte command, byte bytec, byte *bytev)
+{
+  byte i;
+  startSysex();
+  FirmataStream->write(command);
+  for (i = 0; i < bytec; i++) {
+    sendValueAsTwo7bitBytes(bytev[i]);
+  }
+  endSysex();
+}
+
+void FirmataClass::sendString(byte command, const char *string)
+{
+  sendSysex(command, strlen(string), (byte *)string);
+}
+
+// send a string as the protocol string type
+void FirmataClass::sendString(const char *string)
+{
+  sendString(STRING_DATA, string);
+}
+
+// expose the write method
+void FirmataClass::write(byte c)
+{
+  FirmataStream->write(c);
+}
+
+// Internal Actions/////////////////////////////////////////////////////////////
+
+// generic callbacks
+void FirmataClass::attach(byte command, callbackFunction newFunction)
+{
+  switch (command) {
+    case ANALOG_MESSAGE: currentAnalogCallback = newFunction; break;
+    case DIGITAL_MESSAGE: currentDigitalCallback = newFunction; break;
+    case REPORT_ANALOG: currentReportAnalogCallback = newFunction; break;
+    case REPORT_DIGITAL: currentReportDigitalCallback = newFunction; break;
+    case SET_PIN_MODE: currentPinModeCallback = newFunction; break;
+    case SET_DIGITAL_PIN_VALUE: currentPinValueCallback = newFunction; break;
+  }
+}
+
+void FirmataClass::attach(byte command, systemResetCallbackFunction newFunction)
+{
+  switch (command) {
+    case SYSTEM_RESET: currentSystemResetCallback = newFunction; break;
+  }
+}
+
+void FirmataClass::attach(byte command, stringCallbackFunction newFunction)
+{
+  switch (command) {
+    case STRING_DATA: currentStringCallback = newFunction; break;
+  }
+}
+
+void FirmataClass::attach(byte command, sysexCallbackFunction newFunction)
+{
+  currentSysexCallback = newFunction;
+}
+
+void FirmataClass::detach(byte command)
+{
+  switch (command) {
+    case SYSTEM_RESET: currentSystemResetCallback = NULL; break;
+    case STRING_DATA: currentStringCallback = NULL; break;
+    case START_SYSEX: currentSysexCallback = NULL; break;
+    default:
+      attach(command, (callbackFunction)NULL);
+  }
+}
+
+// sysex callbacks
+/*
+ * this is too complicated for analogReceive, but maybe for Sysex?
+ void FirmataClass::attachSysex(sysexFunction newFunction)
+ {
+ byte i;
+ byte tmpCount = analogReceiveFunctionCount;
+ analogReceiveFunction* tmpArray = analogReceiveFunctionArray;
+ analogReceiveFunctionCount++;
+ analogReceiveFunctionArray = (analogReceiveFunction*) calloc(analogReceiveFunctionCount, sizeof(analogReceiveFunction));
+ for(i = 0; i < tmpCount; i++) {
+ analogReceiveFunctionArray[i] = tmpArray[i];
+ }
+ analogReceiveFunctionArray[tmpCount] = newFunction;
+ free(tmpArray);
+ }
+*/
+
+//******************************************************************************
+//* Private Methods
+//******************************************************************************
+
+// resets the system state upon a SYSTEM_RESET message from the host software
+void FirmataClass::systemReset(void)
+{
+  byte i;
+
+  waitForData = 0; // this flag says the next serial input will be data
+  executeMultiByteCommand = 0; // execute this after getting multi-byte data
+  multiByteChannel = 0; // channel data for multiByteCommands
+
+  for (i = 0; i < MAX_DATA_BYTES; i++) {
+    storedInputData[i] = 0;
+  }
+
+  parsingSysex = false;
+  sysexBytesRead = 0;
+
+  if (currentSystemResetCallback)
+    (*currentSystemResetCallback)();
+}
+
+// =============================================================================
+// used for flashing the pin for the version number
+void FirmataClass::strobeBlinkPin(byte pin, int count, int onInterval, int offInterval)
+{
+  byte i;
+  for (i = 0; i < count; i++) {
+    delay(offInterval);
+    digitalWrite(pin, HIGH);
+    delay(onInterval);
+    digitalWrite(pin, LOW);
+  }
+}
+
+// make one instance for the user to use
+FirmataClass Firmata;

libraries/Firmata/Firmata.h

@@ -0,0 +1,207 @@
+/*
+  Firmata.h - Firmata library v2.5.1 - 2015-12-26
+  Copyright (c) 2006-2008 Hans-Christoph Steiner.  All rights reserved.
+  Copyright (C) 2009-2015 Jeff Hoefs.  All rights reserved.
+
+  This library is free software; you can redistribute it and/or
+  modify it under the terms of the GNU Lesser General Public
+  License as published by the Free Software Foundation; either
+  version 2.1 of the License, or (at your option) any later version.
+
+  See file LICENSE.txt for further informations on licensing terms.
+*/
+
+#ifndef Firmata_h
+#define Firmata_h
+
+#include "Boards.h"  /* Hardware Abstraction Layer + Wiring/Arduino */
+
+/* Version numbers for the protocol.  The protocol is still changing, so these
+ * version numbers are important.
+ * Query using the REPORT_VERSION message.
+ */
+#define FIRMATA_PROTOCOL_MAJOR_VERSION  2 // for non-compatible changes
+#define FIRMATA_PROTOCOL_MINOR_VERSION  5 // for backwards compatible changes
+#define FIRMATA_PROTOCOL_BUGFIX_VERSION 1 // for bugfix releases
+
+/* Version numbers for the Firmata library.
+ * The firmware version will not always equal the protocol version going forward.
+ * Query using the REPORT_FIRMWARE message.
+ */
+#define FIRMATA_FIRMWARE_MAJOR_VERSION  2
+#define FIRMATA_FIRMWARE_MINOR_VERSION  5
+#define FIRMATA_FIRMWARE_BUGFIX_VERSION 1
+
+/* DEPRECATED as of Firmata v2.5.1. As of 2.5.1 there are separate version numbers for
+ * the protocol version and the firmware version.
+ */
+#define FIRMATA_MAJOR_VERSION           2 // same as FIRMATA_PROTOCOL_MAJOR_VERSION
+#define FIRMATA_MINOR_VERSION           5 // same as FIRMATA_PROTOCOL_MINOR_VERSION
+#define FIRMATA_BUGFIX_VERSION          1 // same as FIRMATA_PROTOCOL_BUGFIX_VERSION
+
+#define MAX_DATA_BYTES                  64 // max number of data bytes in incoming messages
+
+// Arduino 101 also defines SET_PIN_MODE as a macro in scss_registers.h
+#ifdef SET_PIN_MODE
+#undef SET_PIN_MODE
+#endif
+
+// message command bytes (128-255/0x80-0xFF)
+#define DIGITAL_MESSAGE         0x90 // send data for a digital port (collection of 8 pins)
+#define ANALOG_MESSAGE          0xE0 // send data for an analog pin (or PWM)
+#define REPORT_ANALOG           0xC0 // enable analog input by pin #
+#define REPORT_DIGITAL          0xD0 // enable digital input by port pair
+//
+#define SET_PIN_MODE            0xF4 // set a pin to INPUT/OUTPUT/PWM/etc
+#define SET_DIGITAL_PIN_VALUE   0xF5 // set value of an individual digital pin
+//
+#define REPORT_VERSION          0xF9 // report protocol version
+#define SYSTEM_RESET            0xFF // reset from MIDI
+//
+#define START_SYSEX             0xF0 // start a MIDI Sysex message
+#define END_SYSEX               0xF7 // end a MIDI Sysex message
+
+// extended command set using sysex (0-127/0x00-0x7F)
+/* 0x00-0x0F reserved for user-defined commands */
+#define SERIAL_MESSAGE          0x60 // communicate with serial devices, including other boards
+#define ENCODER_DATA            0x61 // reply with encoders current positions
+#define SERVO_CONFIG            0x70 // set max angle, minPulse, maxPulse, freq
+#define STRING_DATA             0x71 // a string message with 14-bits per char
+#define STEPPER_DATA            0x72 // control a stepper motor
+#define ONEWIRE_DATA            0x73 // send an OneWire read/write/reset/select/skip/search request
+#define SHIFT_DATA              0x75 // a bitstream to/from a shift register
+#define I2C_REQUEST             0x76 // send an I2C read/write request
+#define I2C_REPLY               0x77 // a reply to an I2C read request
+#define I2C_CONFIG              0x78 // config I2C settings such as delay times and power pins
+#define EXTENDED_ANALOG         0x6F // analog write (PWM, Servo, etc) to any pin
+#define PIN_STATE_QUERY         0x6D // ask for a pin's current mode and value
+#define PIN_STATE_RESPONSE      0x6E // reply with pin's current mode and value
+#define CAPABILITY_QUERY        0x6B // ask for supported modes and resolution of all pins
+#define CAPABILITY_RESPONSE     0x6C // reply with supported modes and resolution
+#define ANALOG_MAPPING_QUERY    0x69 // ask for mapping of analog to pin numbers
+#define ANALOG_MAPPING_RESPONSE 0x6A // reply with mapping info
+#define REPORT_FIRMWARE         0x79 // report name and version of the firmware
+#define SAMPLING_INTERVAL       0x7A // set the poll rate of the main loop
+#define SCHEDULER_DATA          0x7B // send a createtask/deletetask/addtotask/schedule/querytasks/querytask request to the scheduler
+#define SYSEX_NON_REALTIME      0x7E // MIDI Reserved for non-realtime messages
+#define SYSEX_REALTIME          0x7F // MIDI Reserved for realtime messages
+// these are DEPRECATED to make the naming more consistent
+#define FIRMATA_STRING          0x71 // same as STRING_DATA
+#define SYSEX_I2C_REQUEST       0x76 // same as I2C_REQUEST
+#define SYSEX_I2C_REPLY         0x77 // same as I2C_REPLY
+#define SYSEX_SAMPLING_INTERVAL 0x7A // same as SAMPLING_INTERVAL
+
+// pin modes
+//#define INPUT                 0x00 // defined in Arduino.h
+//#define OUTPUT                0x01 // defined in Arduino.h
+#define PIN_MODE_ANALOG         0x02 // analog pin in analogInput mode
+#define PIN_MODE_PWM            0x03 // digital pin in PWM output mode
+#define PIN_MODE_SERVO          0x04 // digital pin in Servo output mode
+#define PIN_MODE_SHIFT          0x05 // shiftIn/shiftOut mode
+#define PIN_MODE_I2C            0x06 // pin included in I2C setup
+#define PIN_MODE_ONEWIRE        0x07 // pin configured for 1-wire
+#define PIN_MODE_STEPPER        0x08 // pin configured for stepper motor
+#define PIN_MODE_ENCODER        0x09 // pin configured for rotary encoders
+#define PIN_MODE_SERIAL         0x0A // pin configured for serial communication
+#define PIN_MODE_PULLUP         0x0B // enable internal pull-up resistor for pin
+#define PIN_MODE_IGNORE         0x7F // pin configured to be ignored by digitalWrite and capabilityResponse
+#define TOTAL_PIN_MODES         13
+// DEPRECATED as of Firmata v2.5
+#define ANALOG                  0x02 // same as PIN_MODE_ANALOG
+#define PWM                     0x03 // same as PIN_MODE_PWM
+#define SERVO                   0x04 // same as PIN_MODE_SERVO
+#define SHIFT                   0x05 // same as PIN_MODE_SHIFT
+#define I2C                     0x06 // same as PIN_MODE_I2C
+#define ONEWIRE                 0x07 // same as PIN_MODE_ONEWIRE
+#define STEPPER                 0x08 // same as PIN_MODE_STEPPER
+#define ENCODER                 0x09 // same as PIN_MODE_ENCODER
+
+extern "C" {
+  // callback function types
+  typedef void (*callbackFunction)(byte, int);
+  typedef void (*systemResetCallbackFunction)(void);
+  typedef void (*stringCallbackFunction)(char *);
+  typedef void (*sysexCallbackFunction)(byte command, byte argc, byte *argv);
+}
+
+// TODO make it a subclass of a generic Serial/Stream base class
+class FirmataClass
+{
+  public:
+    FirmataClass();
+    /* Arduino constructors */
+    void begin();
+    void begin(long);
+    void begin(Stream &s);
+    /* querying functions */
+    void printVersion(void);
+    void blinkVersion(void);
+    void printFirmwareVersion(void);
+    //void setFirmwareVersion(byte major, byte minor);  // see macro below
+    void setFirmwareNameAndVersion(const char *name, byte major, byte minor);
+    /* serial receive handling */
+    int available(void);
+    void processInput(void);
+    /* serial send handling */
+    void sendAnalog(byte pin, int value);
+    void sendDigital(byte pin, int value); // TODO implement this
+    void sendDigitalPort(byte portNumber, int portData);
+    void sendString(const char *string);
+    void sendString(byte command, const char *string);
+    void sendSysex(byte command, byte bytec, byte *bytev);
+    void write(byte c);
+    /* attach & detach callback functions to messages */
+    void attach(byte command, callbackFunction newFunction);
+    void attach(byte command, systemResetCallbackFunction newFunction);
+    void attach(byte command, stringCallbackFunction newFunction);
+    void attach(byte command, sysexCallbackFunction newFunction);
+    void detach(byte command);
+
+    /* utility methods */
+    void sendValueAsTwo7bitBytes(int value);
+    void startSysex(void);
+    void endSysex(void);
+
+  private:
+    Stream *FirmataStream;
+    /* firmware name and version */
+    byte firmwareVersionCount;
+    byte *firmwareVersionVector;
+    /* input message handling */
+    byte waitForData; // this flag says the next serial input will be data
+    byte executeMultiByteCommand; // execute this after getting multi-byte data
+    byte multiByteChannel; // channel data for multiByteCommands
+    byte storedInputData[MAX_DATA_BYTES]; // multi-byte data
+    /* sysex */
+    boolean parsingSysex;
+    int sysexBytesRead;
+    /* callback functions */
+    callbackFunction currentAnalogCallback;
+    callbackFunction currentDigitalCallback;
+    callbackFunction currentReportAnalogCallback;
+    callbackFunction currentReportDigitalCallback;
+    callbackFunction currentPinModeCallback;
+    callbackFunction currentPinValueCallback;
+    systemResetCallbackFunction currentSystemResetCallback;
+    stringCallbackFunction currentStringCallback;
+    sysexCallbackFunction currentSysexCallback;
+
+    /* private methods ------------------------------ */
+    void processSysexMessage(void);
+    void systemReset(void);
+    void strobeBlinkPin(byte pin, int count, int onInterval, int offInterval);
+};
+
+extern FirmataClass Firmata;
+
+/*==============================================================================
+ * MACROS
+ *============================================================================*/
+
+/* shortcut for setFirmwareNameAndVersion() that uses __FILE__ to set the
+ * firmware name.  It needs to be a macro so that __FILE__ is included in the
+ * firmware source file rather than the library source file.
+ */
+#define setFirmwareVersion(x, y)   setFirmwareNameAndVersion(__FILE__, x, y)
+
+#endif /* Firmata_h */

libraries/Firmata/examples/AllInputsFirmata/AllInputsFirmata.ino

@@ -0,0 +1,90 @@
+/*
+ * Firmata is a generic protocol for communicating with microcontrollers
+ * from software on a host computer. It is intended to work with
+ * any host computer software package.
+ *
+ * To download a host software package, please clink on the following link
+ * to open the download page in your default browser.
+ *
+ * http://firmata.org/wiki/Download
+ */
+
+/*
+ * This firmware reads all inputs and sends them as fast as it can.  It was
+ * inspired by the ease-of-use of the Arduino2Max program.
+ *
+ * This example code is in the public domain.
+ */
+#include <Firmata.h>
+
+byte pin;
+
+int analogValue;
+int previousAnalogValues[TOTAL_ANALOG_PINS];
+
+byte portStatus[TOTAL_PORTS]; // each bit: 1=pin is digital input, 0=other/ignore
+byte previousPINs[TOTAL_PORTS];
+
+/* timer variables */
+unsigned long currentMillis;     // store the current value from millis()
+unsigned long previousMillis;    // for comparison with currentMillis
+/* make sure that the FTDI buffer doesn't go over 60 bytes, otherwise you
+   get long, random delays.  So only read analogs every 20ms or so */
+int samplingInterval = 19;      // how often to run the main loop (in ms)
+
+void sendPort(byte portNumber, byte portValue)
+{
+  portValue = portValue & portStatus[portNumber];
+  if (previousPINs[portNumber] != portValue) {
+    Firmata.sendDigitalPort(portNumber, portValue);
+    previousPINs[portNumber] = portValue;
+  }
+}
+
+void setup()
+{
+  byte i, port, status;
+
+  Firmata.setFirmwareVersion(FIRMATA_FIRMWARE_MAJOR_VERSION, FIRMATA_FIRMWARE_MINOR_VERSION);
+
+  for (pin = 0; pin < TOTAL_PINS; pin++) {
+    if IS_PIN_DIGITAL(pin) pinMode(PIN_TO_DIGITAL(pin), INPUT);
+  }
+
+  for (port = 0; port < TOTAL_PORTS; port++) {
+    status = 0;
+    for (i = 0; i < 8; i++) {
+      if (IS_PIN_DIGITAL(port * 8 + i)) status |= (1 << i);
+    }
+    portStatus[port] = status;
+  }
+
+  Firmata.begin(57600);
+}
+
+void loop()
+{
+  byte i;
+
+  for (i = 0; i < TOTAL_PORTS; i++) {
+    sendPort(i, readPort(i, 0xff));
+  }
+  /* make sure that the FTDI buffer doesn't go over 60 bytes, otherwise you
+     get long, random delays.  So only read analogs every 20ms or so */
+  currentMillis = millis();
+  if (currentMillis - previousMillis > samplingInterval) {
+    previousMillis += samplingInterval;
+    while (Firmata.available()) {
+      Firmata.processInput();
+    }
+    for (pin = 0; pin < TOTAL_ANALOG_PINS; pin++) {
+      analogValue = analogRead(pin);
+      if (analogValue != previousAnalogValues[pin]) {
+        Firmata.sendAnalog(pin, analogValue);
+        previousAnalogValues[pin] = analogValue;
+      }
+    }
+  }
+}
+
+

libraries/Firmata/examples/AnalogFirmata/AnalogFirmata.ino

@@ -0,0 +1,94 @@
+/*
+ * Firmata is a generic protocol for communicating with microcontrollers
+ * from software on a host computer. It is intended to work with
+ * any host computer software package.
+ *
+ * To download a host software package, please clink on the following link
+ * to open the download page in your default browser.
+ *
+ * http://firmata.org/wiki/Download
+ */
+
+/* This firmware supports as many analog ports as possible, all analog inputs,
+ * four PWM outputs, and two with servo support.
+ *
+ * This example code is in the public domain.
+ */
+#include <Servo.h>
+#include <Firmata.h>
+
+/*==============================================================================
+ * GLOBAL VARIABLES
+ *============================================================================*/
+
+/* servos */
+Servo servo9, servo10; // one instance per pin
+/* analog inputs */
+int analogInputsToReport = 0; // bitwise array to store pin reporting
+int analogPin = 0; // counter for reading analog pins
+/* timer variables */
+unsigned long currentMillis;     // store the current value from millis()
+unsigned long previousMillis;    // for comparison with currentMillis
+
+
+/*==============================================================================
+ * FUNCTIONS
+ *============================================================================*/
+
+void analogWriteCallback(byte pin, int value)
+{
+  switch (pin) {
+    case 9: servo9.write(value); break;
+    case 10: servo10.write(value); break;
+    case 3:
+    case 5:
+    case 6:
+    case 11: // PWM pins
+      analogWrite(pin, value);
+      break;
+  }
+}
+// -----------------------------------------------------------------------------
+// sets bits in a bit array (int) to toggle the reporting of the analogIns
+void reportAnalogCallback(byte pin, int value)
+{
+  if (value == 0) {
+    analogInputsToReport = analogInputsToReport & ~ (1 << pin);
+  }
+  else { // everything but 0 enables reporting of that pin
+    analogInputsToReport = analogInputsToReport | (1 << pin);
+  }
+  // TODO: save status to EEPROM here, if changed
+}
+
+/*==============================================================================
+ * SETUP()
+ *============================================================================*/
+void setup()
+{
+  Firmata.setFirmwareVersion(FIRMATA_FIRMWARE_MAJOR_VERSION, FIRMATA_FIRMWARE_MINOR_VERSION);
+  Firmata.attach(ANALOG_MESSAGE, analogWriteCallback);
+  Firmata.attach(REPORT_ANALOG, reportAnalogCallback);
+
+  servo9.attach(9);
+  servo10.attach(10);
+  Firmata.begin(57600);
+}
+
+/*==============================================================================
+ * LOOP()
+ *============================================================================*/
+void loop()
+{
+  while (Firmata.available())
+    Firmata.processInput();
+  currentMillis = millis();
+  if (currentMillis - previousMillis > 20) {
+    previousMillis += 20;                   // run this every 20ms
+    for (analogPin = 0; analogPin < TOTAL_ANALOG_PINS; analogPin++) {
+      if ( analogInputsToReport & (1 << analogPin) )
+        Firmata.sendAnalog(analogPin, analogRead(analogPin));
+    }
+  }
+}
+

libraries/Firmata/examples/EchoString/EchoString.ino

@@ -0,0 +1,44 @@
+/*
+ * Firmata is a generic protocol for communicating with microcontrollers
+ * from software on a host computer. It is intended to work with
+ * any host computer software package.
+ *
+ * To download a host software package, please clink on the following link
+ * to open the download page in your default browser.
+ *
+ * http://firmata.org/wiki/Download
+ */
+
+/* This sketch accepts strings and raw sysex messages and echos them back.
+ *
+ * This example code is in the public domain.
+ */
+#include <Firmata.h>
+
+void stringCallback(char *myString)
+{
+  Firmata.sendString(myString);
+}
+
+
+void sysexCallback(byte command, byte argc, byte *argv)
+{
+  Firmata.sendSysex(command, argc, argv);
+}
+
+void setup()
+{
+  Firmata.setFirmwareVersion(FIRMATA_FIRMWARE_MAJOR_VERSION, FIRMATA_FIRMWARE_MINOR_VERSION);
+  Firmata.attach(STRING_DATA, stringCallback);
+  Firmata.attach(START_SYSEX, sysexCallback);
+  Firmata.begin(57600);
+}
+
+void loop()
+{
+  while (Firmata.available()) {
+    Firmata.processInput();
+  }
+}
+
+

libraries/Firmata/examples/OldStandardFirmata/LICENSE.txt

@@ -0,0 +1,458 @@
+
+		  GNU LESSER GENERAL PUBLIC LICENSE
+		       Version 2.1, February 1999
+
+ Copyright (C) 1991, 1999 Free Software Foundation, Inc.
+ 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+ Everyone is permitted to copy and distribute verbatim copies
+ of this license document, but changing it is not allowed.
+
+[This is the first released version of the Lesser GPL.  It also counts
+ as the successor of the GNU Library Public License, version 2, hence
+ the version number 2.1.]
+
+			    Preamble
+
+  The licenses for most software are designed to take away your
+freedom to share and change it.  By contrast, the GNU General Public
+Licenses are intended to guarantee your freedom to share and change
+free software--to make sure the software is free for all its users.
+
+  This license, the Lesser General Public License, applies to some
+specially designated software packages--typically libraries--of the
+Free Software Foundation and other authors who decide to use it.  You
+can use it too, but we suggest you first think carefully about whether
+this license or the ordinary General Public License is the better
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+

libraries/Firmata/examples/OldStandardFirmata/OldStandardFirmata.ino

@@ -0,0 +1,239 @@
+/*
+ * Firmata is a generic protocol for communicating with microcontrollers
+ * from software on a host computer. It is intended to work with
+ * any host computer software package.
+ *
+ * To download a host software package, please clink on the following link
+ * to open the download page in your default browser.
+ *
+ * http://firmata.org/wiki/Download
+ */
+
+/*
+  Copyright (C) 2006-2008 Hans-Christoph Steiner.  All rights reserved.
+
+  This library is free software; you can redistribute it and/or
+  modify it under the terms of the GNU Lesser General Public
+  License as published by the Free Software Foundation; either
+  version 2.1 of the License, or (at your option) any later version.
+
+  See file LICENSE.txt for further informations on licensing terms.
+ */
+
+/*
+ * This is an old version of StandardFirmata (v2.0).  It is kept here because
+ * its the last version that works on an ATMEGA8 chip.  Also, it can be used
+ * for host software that has not been updated to a newer version of the
+ * protocol.  It also uses the old baud rate of 115200 rather than 57600.
+ */
+
+#include <EEPROM.h>
+#include <Firmata.h>
+
+/*==============================================================================
+ * GLOBAL VARIABLES
+ *============================================================================*/
+
+/* analog inputs */
+int analogInputsToReport = 0; // bitwise array to store pin reporting
+int analogPin = 0; // counter for reading analog pins
+
+/* digital pins */
+byte reportPINs[TOTAL_PORTS];   // PIN == input port
+byte previousPINs[TOTAL_PORTS]; // PIN == input port
+byte pinStatus[TOTAL_PINS]; // store pin status, default OUTPUT
+byte portStatus[TOTAL_PORTS];
+
+/* timer variables */
+unsigned long currentMillis;     // store the current value from millis()
+unsigned long previousMillis;    // for comparison with currentMillis
+
+
+/*==============================================================================
+ * FUNCTIONS
+ *============================================================================*/
+
+void outputPort(byte portNumber, byte portValue)
+{
+  portValue = portValue & ~ portStatus[portNumber];
+  if (previousPINs[portNumber] != portValue) {
+    Firmata.sendDigitalPort(portNumber, portValue);
+    previousPINs[portNumber] = portValue;
+    Firmata.sendDigitalPort(portNumber, portValue);
+  }
+}
+
+/* -----------------------------------------------------------------------------
+ * check all the active digital inputs for change of state, then add any events
+ * to the Serial output queue using Serial.print() */
+void checkDigitalInputs(void)
+{
+  byte i, tmp;
+  for (i = 0; i < TOTAL_PORTS; i++) {
+    if (reportPINs[i]) {
+      switch (i) {
+        case 0: outputPort(0, PIND & ~ B00000011); break; // ignore Rx/Tx 0/1
+        case 1: outputPort(1, PINB); break;
+        case 2: outputPort(2, PINC); break;
+      }
+    }
+  }
+}
+
+// -----------------------------------------------------------------------------
+/* sets the pin mode to the correct state and sets the relevant bits in the
+ * two bit-arrays that track Digital I/O and PWM status
+ */
+void setPinModeCallback(byte pin, int mode) {
+  byte port = 0;
+  byte offset = 0;
+
+  if (pin < 8) {
+    port = 0;
+    offset = 0;
+  } else if (pin < 14) {
+    port = 1;
+    offset = 8;
+  } else if (pin < 22) {
+    port = 2;
+    offset = 14;
+  }
+
+  if (pin > 1) { // ignore RxTx (pins 0 and 1)
+    pinStatus[pin] = mode;
+    switch (mode) {
+      case INPUT:
+        pinMode(pin, INPUT);
+        portStatus[port] = portStatus[port] & ~ (1 << (pin - offset));
+        break;
+      case OUTPUT:
+        digitalWrite(pin, LOW); // disable PWM
+      case PWM:
+        pinMode(pin, OUTPUT);
+        portStatus[port] = portStatus[port] | (1 << (pin - offset));
+        break;
+      //case ANALOG: // TODO figure this out
+      default:
+        Firmata.sendString("");
+    }
+    // TODO: save status to EEPROM here, if changed
+  }
+}
+
+void analogWriteCallback(byte pin, int value)
+{
+  setPinModeCallback(pin, PIN_MODE_PWM);
+  analogWrite(pin, value);
+}
+
+void digitalWriteCallback(byte port, int value)
+{
+  switch (port) {
+    case 0: // pins 2-7 (don't change Rx/Tx, pins 0 and 1)
+      // 0xFF03 == B1111111100000011    0x03 == B00000011
+      PORTD = (value & ~ 0xFF03) | (PORTD & 0x03);
+      break;
+    case 1: // pins 8-13 (14,15 are disabled for the crystal)
+      PORTB = (byte)value;
+      break;
+    case 2: // analog pins used as digital
+      PORTC = (byte)value;
+      break;
+  }
+}
+
+// -----------------------------------------------------------------------------
+/* sets bits in a bit array (int) to toggle the reporting of the analogIns
+ */
+//void FirmataClass::setAnalogPinReporting(byte pin, byte state) {
+//}
+void reportAnalogCallback(byte pin, int value)
+{
+  if (value == 0) {
+    analogInputsToReport = analogInputsToReport & ~ (1 << pin);
+  }
+  else { // everything but 0 enables reporting of that pin
+    analogInputsToReport = analogInputsToReport | (1 << pin);
+  }
+  // TODO: save status to EEPROM here, if changed
+}
+
+void reportDigitalCallback(byte port, int value)
+{
+  reportPINs[port] = (byte)value;
+  if (port == 2) // turn off analog reporting when used as digital
+    analogInputsToReport = 0;
+}
+
+/*==============================================================================
+ * SETUP()
+ *============================================================================*/
+void setup()
+{
+  byte i;
+
+  Firmata.setFirmwareVersion(2, 0);
+
+  Firmata.attach(ANALOG_MESSAGE, analogWriteCallback);
+  Firmata.attach(DIGITAL_MESSAGE, digitalWriteCallback);
+  Firmata.attach(REPORT_ANALOG, reportAnalogCallback);
+  Firmata.attach(REPORT_DIGITAL, reportDigitalCallback);
+  Firmata.attach(SET_PIN_MODE, setPinModeCallback);
+
+  portStatus[0] = B00000011;  // ignore Tx/RX pins
+  portStatus[1] = B11000000;  // ignore 14/15 pins
+  portStatus[2] = B00000000;
+
+  //    for(i=0; i<TOTAL_PINS; ++i) { // TODO make this work with analogs
+  for (i = 0; i < 14; ++i) {
+    setPinModeCallback(i, OUTPUT);
+  }
+  // set all outputs to 0 to make sure internal pull-up resistors are off
+  PORTB = 0; // pins 8-15
+  PORTC = 0; // analog port
+  PORTD = 0; // pins 0-7
+
+  // TODO rethink the init, perhaps it should report analog on default
+  for (i = 0; i < TOTAL_PORTS; ++i) {
+    reportPINs[i] = false;
+  }
+  // TODO: load state from EEPROM here
+
+  /* send digital inputs here, if enabled, to set the initial state on the
+   * host computer, since once in the loop(), this firmware will only send
+   * digital data on change. */
+  if (reportPINs[0]) outputPort(0, PIND & ~ B00000011); // ignore Rx/Tx 0/1
+  if (reportPINs[1]) outputPort(1, PINB);
+  if (reportPINs[2]) outputPort(2, PINC);
+
+  Firmata.begin(115200);
+}
+
+/*==============================================================================
+ * LOOP()
+ *============================================================================*/
+void loop()
+{
+  /* DIGITALREAD - as fast as possible, check for changes and output them to the
+   * FTDI buffer using Serial.print()  */
+  checkDigitalInputs();
+  currentMillis = millis();
+  if (currentMillis - previousMillis > 20) {
+    previousMillis += 20;     // run this every 20ms
+    /* SERIALREAD - Serial.read() uses a 128 byte circular buffer, so handle
+     * all serialReads at once, i.e. empty the buffer */
+    while (Firmata.available())
+      Firmata.processInput();
+    /* SEND FTDI WRITE BUFFER - make sure that the FTDI buffer doesn't go over
+     * 60 bytes. use a timer to sending an event character every 4 ms to
+     * trigger the buffer to dump. */
+
+    /* ANALOGREAD - right after the event character, do all of the
+     * analogReads().  These only need to be done every 4ms. */
+    for (analogPin = 0; analogPin < TOTAL_ANALOG_PINS; analogPin++) {
+      if ( analogInputsToReport & (1 << analogPin) ) {
+        Firmata.sendAnalog(analogPin, analogRead(analogPin));
+      }
+    }
+  }
+}

libraries/Firmata/examples/ServoFirmata/ServoFirmata.ino

@@ -0,0 +1,65 @@
+/*
+ * Firmata is a generic protocol for communicating with microcontrollers
+ * from software on a host computer. It is intended to work with
+ * any host computer software package.
+ *
+ * To download a host software package, please clink on the following link
+ * to open the download page in your default browser.
+ *
+ * http://firmata.org/wiki/Download
+ */
+
+/* This firmware supports as many servos as possible using the Servo library
+ * included in Arduino 0017
+ *
+ * This example code is in the public domain.
+ */
+
+#include <Servo.h>
+#include <Firmata.h>
+
+Servo servos[MAX_SERVOS];
+byte servoPinMap[TOTAL_PINS];
+byte servoCount = 0;
+
+void analogWriteCallback(byte pin, int value)
+{
+  if (IS_PIN_DIGITAL(pin)) {
+    servos[servoPinMap[pin]].write(value);
+  }
+}
+
+void systemResetCallback()
+{
+  servoCount = 0;
+}
+
+void setup()
+{
+  byte pin;
+
+  Firmata.setFirmwareVersion(FIRMATA_FIRMWARE_MAJOR_VERSION, FIRMATA_FIRMWARE_MINOR_VERSION);
+  Firmata.attach(ANALOG_MESSAGE, analogWriteCallback);
+  Firmata.attach(SYSTEM_RESET, systemResetCallback);
+
+  Firmata.begin(57600);
+  systemResetCallback();
+
+  // attach servos from first digital pin up to max number of
+  // servos supported for the board
+  for (pin = 0; pin < TOTAL_PINS; pin++) {
+    if (IS_PIN_DIGITAL(pin)) {
+      if (servoCount < MAX_SERVOS) {
+        servoPinMap[pin] = servoCount;
+        servos[servoPinMap[pin]].attach(PIN_TO_DIGITAL(pin));
+        servoCount++;
+      }
+    }
+  }
+}
+
+void loop()
+{
+  while (Firmata.available())
+    Firmata.processInput();
+}

libraries/Firmata/examples/SimpleAnalogFirmata/SimpleAnalogFirmata.ino

@@ -0,0 +1,46 @@
+/*
+ * Firmata is a generic protocol for communicating with microcontrollers
+ * from software on a host computer. It is intended to work with
+ * any host computer software package.
+ *
+ * To download a host software package, please clink on the following link
+ * to open the download page in your default browser.
+ *
+ * http://firmata.org/wiki/Download
+ */
+
+/* Supports as many analog inputs and analog PWM outputs as possible.
+ *
+ * This example code is in the public domain.
+ */
+#include <Firmata.h>
+
+byte analogPin = 0;
+
+void analogWriteCallback(byte pin, int value)
+{
+  if (IS_PIN_PWM(pin)) {
+    pinMode(PIN_TO_DIGITAL(pin), OUTPUT);
+    analogWrite(PIN_TO_PWM(pin), value);
+  }
+}
+
+void setup()
+{
+  Firmata.setFirmwareVersion(FIRMATA_FIRMWARE_MAJOR_VERSION, FIRMATA_FIRMWARE_MINOR_VERSION);
+  Firmata.attach(ANALOG_MESSAGE, analogWriteCallback);
+  Firmata.begin(57600);
+}
+
+void loop()
+{
+  while (Firmata.available()) {
+    Firmata.processInput();
+  }
+  // do one analogRead per loop, so if PC is sending a lot of
+  // analog write messages, we will only delay 1 analogRead
+  Firmata.sendAnalog(analogPin, analogRead(analogPin));
+  analogPin = analogPin + 1;
+  if (analogPin >= TOTAL_ANALOG_PINS) analogPin = 0;
+}
+

libraries/Firmata/examples/SimpleDigitalFirmata/SimpleDigitalFirmata.ino

@@ -0,0 +1,72 @@
+/*
+ * Firmata is a generic protocol for communicating with microcontrollers
+ * from software on a host computer. It is intended to work with
+ * any host computer software package.
+ *
+ * To download a host software package, please clink on the following link
+ * to open the download page in your default browser.
+ *
+ * http://firmata.org/wiki/Download
+ */
+
+/* Supports as many digital inputs and outputs as possible.
+ *
+ * This example code is in the public domain.
+ */
+#include <Firmata.h>
+
+byte previousPIN[TOTAL_PORTS];  // PIN means PORT for input
+byte previousPORT[TOTAL_PORTS];
+
+void outputPort(byte portNumber, byte portValue)
+{
+  // only send the data when it changes, otherwise you get too many messages!
+  if (previousPIN[portNumber] != portValue) {
+    Firmata.sendDigitalPort(portNumber, portValue);
+    previousPIN[portNumber] = portValue;
+  }
+}
+
+void setPinModeCallback(byte pin, int mode) {
+  if (IS_PIN_DIGITAL(pin)) {
+    pinMode(PIN_TO_DIGITAL(pin), mode);
+  }
+}
+
+void digitalWriteCallback(byte port, int value)
+{
+  byte i;
+  byte currentPinValue, previousPinValue;
+
+  if (port < TOTAL_PORTS && value != previousPORT[port]) {
+    for (i = 0; i < 8; i++) {
+      currentPinValue = (byte) value & (1 << i);
+      previousPinValue = previousPORT[port] & (1 << i);
+      if (currentPinValue != previousPinValue) {
+        digitalWrite(i + (port * 8), currentPinValue);
+      }
+    }
+    previousPORT[port] = value;
+  }
+}
+
+void setup()
+{
+  Firmata.setFirmwareVersion(FIRMATA_FIRMWARE_MAJOR_VERSION, FIRMATA_FIRMWARE_MINOR_VERSION);
+  Firmata.attach(DIGITAL_MESSAGE, digitalWriteCallback);
+  Firmata.attach(SET_PIN_MODE, setPinModeCallback);
+  Firmata.begin(57600);
+}
+
+void loop()
+{
+  byte i;
+
+  for (i = 0; i < TOTAL_PORTS; i++) {
+    outputPort(i, readPort(i, 0xff));
+  }
+
+  while (Firmata.available()) {
+    Firmata.processInput();
+  }
+}

libraries/Firmata/examples/StandardFirmata/LICENSE.txt

@@ -0,0 +1,458 @@
+
+		  GNU LESSER GENERAL PUBLIC LICENSE
+		       Version 2.1, February 1999
+
+ Copyright (C) 1991, 1999 Free Software Foundation, Inc.
+ 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+ Everyone is permitted to copy and distribute verbatim copies
+ of this license document, but changing it is not allowed.
+
+[This is the first released version of the Lesser GPL.  It also counts
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+ the version number 2.1.]
+
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+generous contributions to the wide range of software distributed
+through that system in reliance on consistent application of that
+system; it is up to the author/donor to decide if he or she is willing
+to distribute software through any other system and a licensee cannot
+impose that choice.
+
+This section is intended to make thoroughly clear what is believed to
+be a consequence of the rest of this License.
+
+  12. If the distribution and/or use of the Library is restricted in
+certain countries either by patents or by copyrighted interfaces, the
+original copyright holder who places the Library under this License may add
+an explicit geographical distribution limitation excluding those countries,
+so that distribution is permitted only in or among countries not thus
+excluded.  In such case, this License incorporates the limitation as if
+written in the body of this License.
+
+  13. The Free Software Foundation may publish revised and/or new
+versions of the Lesser General Public License from time to time.
+Such new versions will be similar in spirit to the present version,
+but may differ in detail to address new problems or concerns.
+
+Each version is given a distinguishing version number.  If the Library
+specifies a version number of this License which applies to it and
+"any later version", you have the option of following the terms and
+conditions either of that version or of any later version published by
+the Free Software Foundation.  If the Library does not specify a
+license version number, you may choose any version ever published by
+the Free Software Foundation.
+
+  14. If you wish to incorporate parts of the Library into other free
+programs whose distribution conditions are incompatible with these,
+write to the author to ask for permission.  For software which is
+copyrighted by the Free Software Foundation, write to the Free
+Software Foundation; we sometimes make exceptions for this.  Our
+decision will be guided by the two goals of preserving the free status
+of all derivatives of our free software and of promoting the sharing
+and reuse of software generally.
+
+			    NO WARRANTY
+
+  15. BECAUSE THE LIBRARY IS LICENSED FREE OF CHARGE, THERE IS NO
+WARRANTY FOR THE LIBRARY, TO THE EXTENT PERMITTED BY APPLICABLE LAW.
+EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR
+OTHER PARTIES PROVIDE THE LIBRARY "AS IS" WITHOUT WARRANTY OF ANY
+KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE
+IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+PURPOSE.  THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE
+LIBRARY IS WITH YOU.  SHOULD THE LIBRARY PROVE DEFECTIVE, YOU ASSUME
+THE COST OF ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
+
+  16. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN
+WRITING WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY
+AND/OR REDISTRIBUTE THE LIBRARY AS PERMITTED ABOVE, BE LIABLE TO YOU
+FOR DAMAGES, INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR
+CONSEQUENTIAL DAMAGES ARISING OUT OF THE USE OR INABILITY TO USE THE
+LIBRARY (INCLUDING BUT NOT LIMITED TO LOSS OF DATA OR DATA BEING
+RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD PARTIES OR A
+FAILURE OF THE LIBRARY TO OPERATE WITH ANY OTHER SOFTWARE), EVEN IF
+SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH
+DAMAGES.
+

libraries/Firmata/examples/StandardFirmata/StandardFirmata.ino

@@ -0,0 +1,789 @@
+/*
+  Firmata is a generic protocol for communicating with microcontrollers
+  from software on a host computer. It is intended to work with
+  any host computer software package.
+
+  To download a host software package, please clink on the following link
+  to open the list of Firmata client libraries your default browser.
+
+  https://github.com/firmata/arduino#firmata-client-libraries
+
+  Copyright (C) 2006-2008 Hans-Christoph Steiner.  All rights reserved.
+  Copyright (C) 2010-2011 Paul Stoffregen.  All rights reserved.
+  Copyright (C) 2009 Shigeru Kobayashi.  All rights reserved.
+  Copyright (C) 2009-2015 Jeff Hoefs.  All rights reserved.
+
+  This library is free software; you can redistribute it and/or
+  modify it under the terms of the GNU Lesser General Public
+  License as published by the Free Software Foundation; either
+  version 2.1 of the License, or (at your option) any later version.
+
+  See file LICENSE.txt for further informations on licensing terms.
+
+  Last updated by Jeff Hoefs: December 26th, 2015
+*/
+
+#include <Servo.h>
+#include <Wire.h>
+#include <Firmata.h>
+
+#define I2C_WRITE                   B00000000
+#define I2C_READ                    B00001000
+#define I2C_READ_CONTINUOUSLY       B00010000
+#define I2C_STOP_READING            B00011000
+#define I2C_READ_WRITE_MODE_MASK    B00011000
+#define I2C_10BIT_ADDRESS_MODE_MASK B00100000
+#define I2C_END_TX_MASK             B01000000
+#define I2C_STOP_TX                 1
+#define I2C_RESTART_TX              0
+#define I2C_MAX_QUERIES             8
+#define I2C_REGISTER_NOT_SPECIFIED  -1
+
+// the minimum interval for sampling analog input
+#define MINIMUM_SAMPLING_INTERVAL   1
+
+
+/*==============================================================================
+ * GLOBAL VARIABLES
+ *============================================================================*/
+
+/* analog inputs */
+int analogInputsToReport = 0; // bitwise array to store pin reporting
+
+/* digital input ports */
+byte reportPINs[TOTAL_PORTS];       // 1 = report this port, 0 = silence
+byte previousPINs[TOTAL_PORTS];     // previous 8 bits sent
+
+/* pins configuration */
+byte pinConfig[TOTAL_PINS];         // configuration of every pin
+byte portConfigInputs[TOTAL_PORTS]; // each bit: 1 = pin in INPUT, 0 = anything else
+int pinState[TOTAL_PINS];           // any value that has been written
+
+/* timer variables */
+unsigned long currentMillis;        // store the current value from millis()
+unsigned long previousMillis;       // for comparison with currentMillis
+unsigned int samplingInterval = 19; // how often to run the main loop (in ms)
+
+/* i2c data */
+struct i2c_device_info {
+  byte addr;
+  int reg;
+  byte bytes;
+  byte stopTX;
+};
+
+/* for i2c read continuous more */
+i2c_device_info query[I2C_MAX_QUERIES];
+
+byte i2cRxData[32];
+boolean isI2CEnabled = false;
+signed char queryIndex = -1;
+// default delay time between i2c read request and Wire.requestFrom()
+unsigned int i2cReadDelayTime = 0;
+
+Servo servos[MAX_SERVOS];
+byte servoPinMap[TOTAL_PINS];
+byte detachedServos[MAX_SERVOS];
+byte detachedServoCount = 0;
+byte servoCount = 0;
+
+boolean isResetting = false;
+
+/* utility functions */
+void wireWrite(byte data)
+{
+#if ARDUINO >= 100
+  Wire.write((byte)data);
+#else
+  Wire.send(data);
+#endif
+}
+
+byte wireRead(void)
+{
+#if ARDUINO >= 100
+  return Wire.read();
+#else
+  return Wire.receive();
+#endif
+}
+
+/*==============================================================================
+ * FUNCTIONS
+ *============================================================================*/
+
+void attachServo(byte pin, int minPulse, int maxPulse)
+{
+  if (servoCount < MAX_SERVOS) {
+    // reuse indexes of detached servos until all have been reallocated
+    if (detachedServoCount > 0) {
+      servoPinMap[pin] = detachedServos[detachedServoCount - 1];
+      if (detachedServoCount > 0) detachedServoCount--;
+    } else {
+      servoPinMap[pin] = servoCount;
+      servoCount++;
+    }
+    if (minPulse > 0 && maxPulse > 0) {
+      servos[servoPinMap[pin]].attach(PIN_TO_DIGITAL(pin), minPulse, maxPulse);
+    } else {
+      servos[servoPinMap[pin]].attach(PIN_TO_DIGITAL(pin));
+    }
+  } else {
+    Firmata.sendString("Max servos attached");
+  }
+}
+
+void detachServo(byte pin)
+{
+  servos[servoPinMap[pin]].detach();
+  // if we're detaching the last servo, decrement the count
+  // otherwise store the index of the detached servo
+  if (servoPinMap[pin] == servoCount && servoCount > 0) {
+    servoCount--;
+  } else if (servoCount > 0) {
+    // keep track of detached servos because we want to reuse their indexes
+    // before incrementing the count of attached servos
+    detachedServoCount++;
+    detachedServos[detachedServoCount - 1] = servoPinMap[pin];
+  }
+
+  servoPinMap[pin] = 255;
+}
+
+void readAndReportData(byte address, int theRegister, byte numBytes, byte stopTX) {
+  // allow I2C requests that don't require a register read
+  // for example, some devices using an interrupt pin to signify new data available
+  // do not always require the register read so upon interrupt you call Wire.requestFrom()
+  if (theRegister != I2C_REGISTER_NOT_SPECIFIED) {
+    Wire.beginTransmission(address);
+    wireWrite((byte)theRegister);
+    Wire.endTransmission(stopTX); // default = true
+    // do not set a value of 0
+    if (i2cReadDelayTime > 0) {
+      // delay is necessary for some devices such as WiiNunchuck
+      delayMicroseconds(i2cReadDelayTime);
+    }
+  } else {
+    theRegister = 0;  // fill the register with a dummy value
+  }
+
+  Wire.requestFrom(address, numBytes);  // all bytes are returned in requestFrom
+
+  // check to be sure correct number of bytes were returned by slave
+  if (numBytes < Wire.available()) {
+    Firmata.sendString("I2C: Too many bytes received");
+  } else if (numBytes > Wire.available()) {
+    Firmata.sendString("I2C: Too few bytes received");
+  }
+
+  i2cRxData[0] = address;
+  i2cRxData[1] = theRegister;
+
+  for (int i = 0; i < numBytes && Wire.available(); i++) {
+    i2cRxData[2 + i] = wireRead();
+  }
+
+  // send slave address, register and received bytes
+  Firmata.sendSysex(SYSEX_I2C_REPLY, numBytes + 2, i2cRxData);
+}
+
+void outputPort(byte portNumber, byte portValue, byte forceSend)
+{
+  // pins not configured as INPUT are cleared to zeros
+  portValue = portValue & portConfigInputs[portNumber];
+  // only send if the value is different than previously sent
+  if (forceSend || previousPINs[portNumber] != portValue) {
+    Firmata.sendDigitalPort(portNumber, portValue);
+    previousPINs[portNumber] = portValue;
+  }
+}
+
+/* -----------------------------------------------------------------------------
+ * check all the active digital inputs for change of state, then add any events
+ * to the Serial output queue using Serial.print() */
+void checkDigitalInputs(void)
+{
+  /* Using non-looping code allows constants to be given to readPort().
+   * The compiler will apply substantial optimizations if the inputs
+   * to readPort() are compile-time constants. */
+  if (TOTAL_PORTS > 0 && reportPINs[0]) outputPort(0, readPort(0, portConfigInputs[0]), false);
+  if (TOTAL_PORTS > 1 && reportPINs[1]) outputPort(1, readPort(1, portConfigInputs[1]), false);
+  if (TOTAL_PORTS > 2 && reportPINs[2]) outputPort(2, readPort(2, portConfigInputs[2]), false);
+  if (TOTAL_PORTS > 3 && reportPINs[3]) outputPort(3, readPort(3, portConfigInputs[3]), false);
+  if (TOTAL_PORTS > 4 && reportPINs[4]) outputPort(4, readPort(4, portConfigInputs[4]), false);
+  if (TOTAL_PORTS > 5 && reportPINs[5]) outputPort(5, readPort(5, portConfigInputs[5]), false);
+  if (TOTAL_PORTS > 6 && reportPINs[6]) outputPort(6, readPort(6, portConfigInputs[6]), false);
+  if (TOTAL_PORTS > 7 && reportPINs[7]) outputPort(7, readPort(7, portConfigInputs[7]), false);
+  if (TOTAL_PORTS > 8 && reportPINs[8]) outputPort(8, readPort(8, portConfigInputs[8]), false);
+  if (TOTAL_PORTS > 9 && reportPINs[9]) outputPort(9, readPort(9, portConfigInputs[9]), false);
+  if (TOTAL_PORTS > 10 && reportPINs[10]) outputPort(10, readPort(10, portConfigInputs[10]), false);
+  if (TOTAL_PORTS > 11 && reportPINs[11]) outputPort(11, readPort(11, portConfigInputs[11]), false);
+  if (TOTAL_PORTS > 12 && reportPINs[12]) outputPort(12, readPort(12, portConfigInputs[12]), false);
+  if (TOTAL_PORTS > 13 && reportPINs[13]) outputPort(13, readPort(13, portConfigInputs[13]), false);
+  if (TOTAL_PORTS > 14 && reportPINs[14]) outputPort(14, readPort(14, portConfigInputs[14]), false);
+  if (TOTAL_PORTS > 15 && reportPINs[15]) outputPort(15, readPort(15, portConfigInputs[15]), false);
+}
+
+// -----------------------------------------------------------------------------
+/* sets the pin mode to the correct state and sets the relevant bits in the
+ * two bit-arrays that track Digital I/O and PWM status
+ */
+void setPinModeCallback(byte pin, int mode)
+{
+  if (pinConfig[pin] == PIN_MODE_IGNORE)
+    return;
+
+  if (pinConfig[pin] == PIN_MODE_I2C && isI2CEnabled && mode != PIN_MODE_I2C) {
+    // disable i2c so pins can be used for other functions
+    // the following if statements should reconfigure the pins properly
+    disableI2CPins();
+  }
+  if (IS_PIN_DIGITAL(pin) && mode != PIN_MODE_SERVO) {
+    if (servoPinMap[pin] < MAX_SERVOS && servos[servoPinMap[pin]].attached()) {
+      detachServo(pin);
+    }
+  }
+  if (IS_PIN_ANALOG(pin)) {
+    reportAnalogCallback(PIN_TO_ANALOG(pin), mode == PIN_MODE_ANALOG ? 1 : 0); // turn on/off reporting
+  }
+  if (IS_PIN_DIGITAL(pin)) {
+    if (mode == INPUT || mode == PIN_MODE_PULLUP) {
+      portConfigInputs[pin / 8] |= (1 << (pin & 7));
+    } else {
+      portConfigInputs[pin / 8] &= ~(1 << (pin & 7));
+    }
+  }
+  pinState[pin] = 0;
+  switch (mode) {
+    case PIN_MODE_ANALOG:
+      if (IS_PIN_ANALOG(pin)) {
+        if (IS_PIN_DIGITAL(pin)) {
+          pinMode(PIN_TO_DIGITAL(pin), INPUT);    // disable output driver
+#if ARDUINO <= 100
+          // deprecated since Arduino 1.0.1 - TODO: drop support in Firmata 2.6
+          digitalWrite(PIN_TO_DIGITAL(pin), LOW); // disable internal pull-ups
+#endif
+        }
+        pinConfig[pin] = PIN_MODE_ANALOG;
+      }
+      break;
+    case INPUT:
+      if (IS_PIN_DIGITAL(pin)) {
+        pinMode(PIN_TO_DIGITAL(pin), INPUT);    // disable output driver
+#if ARDUINO <= 100
+        // deprecated since Arduino 1.0.1 - TODO: drop support in Firmata 2.6
+        digitalWrite(PIN_TO_DIGITAL(pin), LOW); // disable internal pull-ups
+#endif
+        pinConfig[pin] = INPUT;
+      }
+      break;
+    case PIN_MODE_PULLUP:
+      if (IS_PIN_DIGITAL(pin)) {
+        pinMode(PIN_TO_DIGITAL(pin), INPUT_PULLUP);
+        pinConfig[pin] = PIN_MODE_PULLUP;
+        pinState[pin] = 1;
+      }
+      break;
+    case OUTPUT:
+      if (IS_PIN_DIGITAL(pin)) {
+        digitalWrite(PIN_TO_DIGITAL(pin), LOW); // disable PWM
+        pinMode(PIN_TO_DIGITAL(pin), OUTPUT);
+        pinConfig[pin] = OUTPUT;
+      }
+      break;
+    case PIN_MODE_PWM:
+      if (IS_PIN_PWM(pin)) {
+        pinMode(PIN_TO_PWM(pin), OUTPUT);
+        analogWrite(PIN_TO_PWM(pin), 0);
+        pinConfig[pin] = PIN_MODE_PWM;
+      }
+      break;
+    case PIN_MODE_SERVO:
+      if (IS_PIN_DIGITAL(pin)) {
+        pinConfig[pin] = PIN_MODE_SERVO;
+        if (servoPinMap[pin] == 255 || !servos[servoPinMap[pin]].attached()) {
+          // pass -1 for min and max pulse values to use default values set
+          // by Servo library
+          attachServo(pin, -1, -1);
+        }
+      }
+      break;
+    case PIN_MODE_I2C:
+      if (IS_PIN_I2C(pin)) {
+        // mark the pin as i2c
+        // the user must call I2C_CONFIG to enable I2C for a device
+        pinConfig[pin] = PIN_MODE_I2C;
+      }
+      break;
+    default:
+      Firmata.sendString("Unknown pin mode"); // TODO: put error msgs in EEPROM
+  }
+  // TODO: save status to EEPROM here, if changed
+}
+
+/*
+ * Sets the value of an individual pin. Useful if you want to set a pin value but
+ * are not tracking the digital port state.
+ * Can only be used on pins configured as OUTPUT.
+ * Cannot be used to enable pull-ups on Digital INPUT pins.
+ */
+void setPinValueCallback(byte pin, int value)
+{
+  if (pin < TOTAL_PINS && IS_PIN_DIGITAL(pin)) {
+    if (pinConfig[pin] == OUTPUT) {
+      pinState[pin] = value;
+      digitalWrite(PIN_TO_DIGITAL(pin), value);
+    }
+  }
+}
+
+void analogWriteCallback(byte pin, int value)
+{
+  if (pin < TOTAL_PINS) {
+    switch (pinConfig[pin]) {
+      case PIN_MODE_SERVO:
+        if (IS_PIN_DIGITAL(pin))
+          servos[servoPinMap[pin]].write(value);
+        pinState[pin] = value;
+        break;
+      case PIN_MODE_PWM:
+        if (IS_PIN_PWM(pin))
+          analogWrite(PIN_TO_PWM(pin), value);
+        pinState[pin] = value;
+        break;
+    }
+  }
+}
+
+void digitalWriteCallback(byte port, int value)
+{
+  byte pin, lastPin, pinValue, mask = 1, pinWriteMask = 0;
+
+  if (port < TOTAL_PORTS) {
+    // create a mask of the pins on this port that are writable.
+    lastPin = port * 8 + 8;
+    if (lastPin > TOTAL_PINS) lastPin = TOTAL_PINS;
+    for (pin = port * 8; pin < lastPin; pin++) {
+      // do not disturb non-digital pins (eg, Rx & Tx)
+      if (IS_PIN_DIGITAL(pin)) {
+        // do not touch pins in PWM, ANALOG, SERVO or other modes
+        if (pinConfig[pin] == OUTPUT || pinConfig[pin] == INPUT) {
+          pinValue = ((byte)value & mask) ? 1 : 0;
+          if (pinConfig[pin] == OUTPUT) {
+            pinWriteMask |= mask;
+          } else if (pinConfig[pin] == INPUT && pinValue == 1 && pinState[pin] != 1) {
+            // only handle INPUT here for backwards compatibility
+#if ARDUINO > 100
+            pinMode(pin, INPUT_PULLUP);
+#else
+            // only write to the INPUT pin to enable pullups if Arduino v1.0.0 or earlier
+            pinWriteMask |= mask;
+#endif
+          }
+          pinState[pin] = pinValue;
+        }
+      }
+      mask = mask << 1;
+    }
+    writePort(port, (byte)value, pinWriteMask);
+  }
+}
+
+
+// -----------------------------------------------------------------------------
+/* sets bits in a bit array (int) to toggle the reporting of the analogIns
+ */
+//void FirmataClass::setAnalogPinReporting(byte pin, byte state) {
+//}
+void reportAnalogCallback(byte analogPin, int value)
+{
+  if (analogPin < TOTAL_ANALOG_PINS) {
+    if (value == 0) {
+      analogInputsToReport = analogInputsToReport & ~ (1 << analogPin);
+    } else {
+      analogInputsToReport = analogInputsToReport | (1 << analogPin);
+      // prevent during system reset or all analog pin values will be reported
+      // which may report noise for unconnected analog pins
+      if (!isResetting) {
+        // Send pin value immediately. This is helpful when connected via
+        // ethernet, wi-fi or bluetooth so pin states can be known upon
+        // reconnecting.
+        Firmata.sendAnalog(analogPin, analogRead(analogPin));
+      }
+    }
+  }
+  // TODO: save status to EEPROM here, if changed
+}
+
+void reportDigitalCallback(byte port, int value)
+{
+  if (port < TOTAL_PORTS) {
+    reportPINs[port] = (byte)value;
+    // Send port value immediately. This is helpful when connected via
+    // ethernet, wi-fi or bluetooth so pin states can be known upon
+    // reconnecting.
+    if (value) outputPort(port, readPort(port, portConfigInputs[port]), true);
+  }
+  // do not disable analog reporting on these 8 pins, to allow some
+  // pins used for digital, others analog.  Instead, allow both types
+  // of reporting to be enabled, but check if the pin is configured
+  // as analog when sampling the analog inputs.  Likewise, while
+  // scanning digital pins, portConfigInputs will mask off values from any
+  // pins configured as analog
+}
+
+/*==============================================================================
+ * SYSEX-BASED commands
+ *============================================================================*/
+
+void sysexCallback(byte command, byte argc, byte *argv)
+{
+  byte mode;
+  byte stopTX;
+  byte slaveAddress;
+  byte data;
+  int slaveRegister;
+  unsigned int delayTime;
+
+  switch (command) {
+    case I2C_REQUEST:
+      mode = argv[1] & I2C_READ_WRITE_MODE_MASK;
+      if (argv[1] & I2C_10BIT_ADDRESS_MODE_MASK) {
+        Firmata.sendString("10-bit addressing not supported");
+        return;
+      }
+      else {
+        slaveAddress = argv[0];
+      }
+
+      // need to invert the logic here since 0 will be default for client
+      // libraries that have not updated to add support for restart tx
+      if (argv[1] & I2C_END_TX_MASK) {
+        stopTX = I2C_RESTART_TX;
+      }
+      else {
+        stopTX = I2C_STOP_TX; // default
+      }
+
+      switch (mode) {
+        case I2C_WRITE:
+          Wire.beginTransmission(slaveAddress);
+          for (byte i = 2; i < argc; i += 2) {
+            data = argv[i] + (argv[i + 1] << 7);
+            wireWrite(data);
+          }
+          Wire.endTransmission();
+          delayMicroseconds(70);
+          break;
+        case I2C_READ:
+          if (argc == 6) {
+            // a slave register is specified
+            slaveRegister = argv[2] + (argv[3] << 7);
+            data = argv[4] + (argv[5] << 7);  // bytes to read
+          }
+          else {
+            // a slave register is NOT specified
+            slaveRegister = I2C_REGISTER_NOT_SPECIFIED;
+            data = argv[2] + (argv[3] << 7);  // bytes to read
+          }
+          readAndReportData(slaveAddress, (int)slaveRegister, data, stopTX);
+          break;
+        case I2C_READ_CONTINUOUSLY:
+          if ((queryIndex + 1) >= I2C_MAX_QUERIES) {
+            // too many queries, just ignore
+            Firmata.sendString("too many queries");
+            break;
+          }
+          if (argc == 6) {
+            // a slave register is specified
+            slaveRegister = argv[2] + (argv[3] << 7);
+            data = argv[4] + (argv[5] << 7);  // bytes to read
+          }
+          else {
+            // a slave register is NOT specified
+            slaveRegister = (int)I2C_REGISTER_NOT_SPECIFIED;
+            data = argv[2] + (argv[3] << 7);  // bytes to read
+          }
+          queryIndex++;
+          query[queryIndex].addr = slaveAddress;
+          query[queryIndex].reg = slaveRegister;
+          query[queryIndex].bytes = data;
+          query[queryIndex].stopTX = stopTX;
+          break;
+        case I2C_STOP_READING:
+          byte queryIndexToSkip;
+          // if read continuous mode is enabled for only 1 i2c device, disable
+          // read continuous reporting for that device
+          if (queryIndex <= 0) {
+            queryIndex = -1;
+          } else {
+            queryIndexToSkip = 0;
+            // if read continuous mode is enabled for multiple devices,
+            // determine which device to stop reading and remove it's data from
+            // the array, shifiting other array data to fill the space
+            for (byte i = 0; i < queryIndex + 1; i++) {
+              if (query[i].addr == slaveAddress) {
+                queryIndexToSkip = i;
+                break;
+              }
+            }
+
+            for (byte i = queryIndexToSkip; i < queryIndex + 1; i++) {
+              if (i < I2C_MAX_QUERIES) {
+                query[i].addr = query[i + 1].addr;
+                query[i].reg = query[i + 1].reg;
+                query[i].bytes = query[i + 1].bytes;
+                query[i].stopTX = query[i + 1].stopTX;
+              }
+            }
+            queryIndex--;
+          }
+          break;
+        default:
+          break;
+      }
+      break;
+    case I2C_CONFIG:
+      delayTime = (argv[0] + (argv[1] << 7));
+
+      if (delayTime > 0) {
+        i2cReadDelayTime = delayTime;
+      }
+
+      if (!isI2CEnabled) {
+        enableI2CPins();
+      }
+
+      break;
+    case SERVO_CONFIG:
+      if (argc > 4) {
+        // these vars are here for clarity, they'll optimized away by the compiler
+        byte pin = argv[0];
+        int minPulse = argv[1] + (argv[2] << 7);
+        int maxPulse = argv[3] + (argv[4] << 7);
+
+        if (IS_PIN_DIGITAL(pin)) {
+          if (servoPinMap[pin] < MAX_SERVOS && servos[servoPinMap[pin]].attached()) {
+            detachServo(pin);
+          }
+          attachServo(pin, minPulse, maxPulse);
+          setPinModeCallback(pin, PIN_MODE_SERVO);
+        }
+      }
+      break;
+    case SAMPLING_INTERVAL:
+      if (argc > 1) {
+        samplingInterval = argv[0] + (argv[1] << 7);
+        if (samplingInterval < MINIMUM_SAMPLING_INTERVAL) {
+          samplingInterval = MINIMUM_SAMPLING_INTERVAL;
+        }
+      } else {
+        //Firmata.sendString("Not enough data");
+      }
+      break;
+    case EXTENDED_ANALOG:
+      if (argc > 1) {
+        int val = argv[1];
+        if (argc > 2) val |= (argv[2] << 7);
+        if (argc > 3) val |= (argv[3] << 14);
+        analogWriteCallback(argv[0], val);
+      }
+      break;
+    case CAPABILITY_QUERY:
+      Firmata.write(START_SYSEX);
+      Firmata.write(CAPABILITY_RESPONSE);
+      for (byte pin = 0; pin < TOTAL_PINS; pin++) {
+        if (IS_PIN_DIGITAL(pin)) {
+          Firmata.write((byte)INPUT);
+          Firmata.write(1);
+          Firmata.write((byte)PIN_MODE_PULLUP);
+          Firmata.write(1);
+          Firmata.write((byte)OUTPUT);
+          Firmata.write(1);
+        }
+        if (IS_PIN_ANALOG(pin)) {
+          Firmata.write(PIN_MODE_ANALOG);
+          Firmata.write(10); // 10 = 10-bit resolution
+        }
+        if (IS_PIN_PWM(pin)) {
+          Firmata.write(PIN_MODE_PWM);
+          Firmata.write(8); // 8 = 8-bit resolution
+        }
+        if (IS_PIN_DIGITAL(pin)) {
+          Firmata.write(PIN_MODE_SERVO);
+          Firmata.write(14);
+        }
+        if (IS_PIN_I2C(pin)) {
+          Firmata.write(PIN_MODE_I2C);
+          Firmata.write(1);  // TODO: could assign a number to map to SCL or SDA
+        }
+        Firmata.write(127);
+      }
+      Firmata.write(END_SYSEX);
+      break;
+    case PIN_STATE_QUERY:
+      if (argc > 0) {
+        byte pin = argv[0];
+        Firmata.write(START_SYSEX);
+        Firmata.write(PIN_STATE_RESPONSE);
+        Firmata.write(pin);
+        if (pin < TOTAL_PINS) {
+          Firmata.write((byte)pinConfig[pin]);
+          Firmata.write((byte)pinState[pin] & 0x7F);
+          if (pinState[pin] & 0xFF80) Firmata.write((byte)(pinState[pin] >> 7) & 0x7F);
+          if (pinState[pin] & 0xC000) Firmata.write((byte)(pinState[pin] >> 14) & 0x7F);
+        }
+        Firmata.write(END_SYSEX);
+      }
+      break;
+    case ANALOG_MAPPING_QUERY:
+      Firmata.write(START_SYSEX);
+      Firmata.write(ANALOG_MAPPING_RESPONSE);
+      for (byte pin = 0; pin < TOTAL_PINS; pin++) {
+        Firmata.write(IS_PIN_ANALOG(pin) ? PIN_TO_ANALOG(pin) : 127);
+      }
+      Firmata.write(END_SYSEX);
+      break;
+  }
+}
+
+void enableI2CPins()
+{
+  byte i;
+  // is there a faster way to do this? would probaby require importing
+  // Arduino.h to get SCL and SDA pins
+  for (i = 0; i < TOTAL_PINS; i++) {
+    if (IS_PIN_I2C(i)) {
+      // mark pins as i2c so they are ignore in non i2c data requests
+      setPinModeCallback(i, PIN_MODE_I2C);
+    }
+  }
+
+  isI2CEnabled = true;
+
+  Wire.begin();
+}
+
+/* disable the i2c pins so they can be used for other functions */
+void disableI2CPins() {
+  isI2CEnabled = false;
+  // disable read continuous mode for all devices
+  queryIndex = -1;
+}
+
+/*==============================================================================
+ * SETUP()
+ *============================================================================*/
+
+void systemResetCallback()
+{
+  isResetting = true;
+
+  // initialize a defalt state
+  // TODO: option to load config from EEPROM instead of default
+
+  if (isI2CEnabled) {
+    disableI2CPins();
+  }
+
+  for (byte i = 0; i < TOTAL_PORTS; i++) {
+    reportPINs[i] = false;    // by default, reporting off
+    portConfigInputs[i] = 0;  // until activated
+    previousPINs[i] = 0;
+  }
+
+  for (byte i = 0; i < TOTAL_PINS; i++) {
+    // pins with analog capability default to analog input
+    // otherwise, pins default to digital output
+    if (IS_PIN_ANALOG(i)) {
+      // turns off pullup, configures everything
+      setPinModeCallback(i, PIN_MODE_ANALOG);
+    } else if (IS_PIN_DIGITAL(i)) {
+      // sets the output to 0, configures portConfigInputs
+      setPinModeCallback(i, OUTPUT);
+    }
+
+    servoPinMap[i] = 255;
+  }
+  // by default, do not report any analog inputs
+  analogInputsToReport = 0;
+
+  detachedServoCount = 0;
+  servoCount = 0;
+
+  /* send digital inputs to set the initial state on the host computer,
+   * since once in the loop(), this firmware will only send on change */
+  /*
+  TODO: this can never execute, since no pins default to digital input
+        but it will be needed when/if we support EEPROM stored config
+  for (byte i=0; i < TOTAL_PORTS; i++) {
+    outputPort(i, readPort(i, portConfigInputs[i]), true);
+  }
+  */
+  isResetting = false;
+}
+
+void setup()
+{
+  Firmata.setFirmwareVersion(FIRMATA_FIRMWARE_MAJOR_VERSION, FIRMATA_FIRMWARE_MINOR_VERSION);
+
+  Firmata.attach(ANALOG_MESSAGE, analogWriteCallback);
+  Firmata.attach(DIGITAL_MESSAGE, digitalWriteCallback);
+  Firmata.attach(REPORT_ANALOG, reportAnalogCallback);
+  Firmata.attach(REPORT_DIGITAL, reportDigitalCallback);
+  Firmata.attach(SET_PIN_MODE, setPinModeCallback);
+  Firmata.attach(SET_DIGITAL_PIN_VALUE, setPinValueCallback);
+  Firmata.attach(START_SYSEX, sysexCallback);
+  Firmata.attach(SYSTEM_RESET, systemResetCallback);
+
+  // to use a port other than Serial, such as Serial1 on an Arduino Leonardo or Mega,
+  // Call begin(baud) on the alternate serial port and pass it to Firmata to begin like this:
+  // Serial1.begin(57600);
+  // Firmata.begin(Serial1);
+  // then comment out or remove lines 701 - 704 below
+
+  Firmata.begin(57600);
+  while (!Serial) {
+    ; // wait for serial port to connect. Needed for ATmega32u4-based boards and Arduino 101
+  }
+  systemResetCallback();  // reset to default config
+}
+
+/*==============================================================================
+ * LOOP()
+ *============================================================================*/
+void loop()
+{
+  byte pin, analogPin;
+
+  /* DIGITALREAD - as fast as possible, check for changes and output them to the
+   * FTDI buffer using Serial.print()  */
+  checkDigitalInputs();
+
+  /* STREAMREAD - processing incoming messagse as soon as possible, while still
+   * checking digital inputs.  */
+  while (Firmata.available())
+    Firmata.processInput();
+
+  // TODO - ensure that Stream buffer doesn't go over 60 bytes
+
+  currentMillis = millis();
+  if (currentMillis - previousMillis > samplingInterval) {
+    previousMillis += samplingInterval;
+    /* ANALOGREAD - do all analogReads() at the configured sampling interval */
+    for (pin = 0; pin < TOTAL_PINS; pin++) {
+      if (IS_PIN_ANALOG(pin) && pinConfig[pin] == PIN_MODE_ANALOG) {
+        analogPin = PIN_TO_ANALOG(pin);
+        if (analogInputsToReport & (1 << analogPin)) {
+          Firmata.sendAnalog(analogPin, analogRead(analogPin));
+        }
+      }
+    }
+    // report i2c data for all device with read continuous mode enabled
+    if (queryIndex > -1) {
+      for (byte i = 0; i < queryIndex + 1; i++) {
+        readAndReportData(query[i].addr, query[i].reg, query[i].bytes, query[i].stopTX);
+      }
+    }
+  }
+}

libraries/Firmata/examples/StandardFirmataChipKIT/LICENSE.txt

@@ -0,0 +1,458 @@
+
+		  GNU LESSER GENERAL PUBLIC LICENSE
+		       Version 2.1, February 1999
+
+ Copyright (C) 1991, 1999 Free Software Foundation, Inc.
+ 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+ Everyone is permitted to copy and distribute verbatim copies
+ of this license document, but changing it is not allowed.
+
+[This is the first released version of the Lesser GPL.  It also counts
+ as the successor of the GNU Library Public License, version 2, hence
+ the version number 2.1.]
+
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+
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+License and any other pertinent obligations, then as a consequence you
+may not distribute the Library at all.  For example, if a patent
+license would not permit royalty-free redistribution of the Library by
+all those who receive copies directly or indirectly through you, then
+the only way you could satisfy both it and this License would be to
+refrain entirely from distribution of the Library.
+
+If any portion of this section is held invalid or unenforceable under any
+particular circumstance, the balance of the section is intended to apply,
+and the section as a whole is intended to apply in other circumstances.
+
+It is not the purpose of this section to induce you to infringe any
+patents or other property right claims or to contest validity of any
+such claims; this section has the sole purpose of protecting the
+integrity of the free software distribution system which is
+implemented by public license practices.  Many people have made
+generous contributions to the wide range of software distributed
+through that system in reliance on consistent application of that
+system; it is up to the author/donor to decide if he or she is willing
+to distribute software through any other system and a licensee cannot
+impose that choice.
+
+This section is intended to make thoroughly clear what is believed to
+be a consequence of the rest of this License.
+
+  12. If the distribution and/or use of the Library is restricted in
+certain countries either by patents or by copyrighted interfaces, the
+original copyright holder who places the Library under this License may add
+an explicit geographical distribution limitation excluding those countries,
+so that distribution is permitted only in or among countries not thus
+excluded.  In such case, this License incorporates the limitation as if
+written in the body of this License.
+
+  13. The Free Software Foundation may publish revised and/or new
+versions of the Lesser General Public License from time to time.
+Such new versions will be similar in spirit to the present version,
+but may differ in detail to address new problems or concerns.
+
+Each version is given a distinguishing version number.  If the Library
+specifies a version number of this License which applies to it and
+"any later version", you have the option of following the terms and
+conditions either of that version or of any later version published by
+the Free Software Foundation.  If the Library does not specify a
+license version number, you may choose any version ever published by
+the Free Software Foundation.
+
+  14. If you wish to incorporate parts of the Library into other free
+programs whose distribution conditions are incompatible with these,
+write to the author to ask for permission.  For software which is
+copyrighted by the Free Software Foundation, write to the Free
+Software Foundation; we sometimes make exceptions for this.  Our
+decision will be guided by the two goals of preserving the free status
+of all derivatives of our free software and of promoting the sharing
+and reuse of software generally.
+
+			    NO WARRANTY
+
+  15. BECAUSE THE LIBRARY IS LICENSED FREE OF CHARGE, THERE IS NO
+WARRANTY FOR THE LIBRARY, TO THE EXTENT PERMITTED BY APPLICABLE LAW.
+EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR
+OTHER PARTIES PROVIDE THE LIBRARY "AS IS" WITHOUT WARRANTY OF ANY
+KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE
+IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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+
+  16. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN
+WRITING WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY
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+SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH
+DAMAGES.
+

libraries/Firmata/examples/StandardFirmataChipKIT/StandardFirmataChipKIT.ino

@@ -0,0 +1,795 @@
+/*
+  Firmata is a generic protocol for communicating with microcontrollers
+  from software on a host computer. It is intended to work with
+  any host computer software package.
+
+  To download a host software package, please clink on the following link
+  to open the list of Firmata client libraries your default browser.
+
+  https://github.com/firmata/arduino#firmata-client-libraries
+
+  Copyright (C) 2006-2008 Hans-Christoph Steiner.  All rights reserved.
+  Copyright (C) 2010-2011 Paul Stoffregen.  All rights reserved.
+  Copyright (C) 2009 Shigeru Kobayashi.  All rights reserved.
+  Copyright (C) 2009-2015 Jeff Hoefs.  All rights reserved.
+  Copyright (C) 2015 Brian Schmalz. All rights reserved.
+
+  This library is free software; you can redistribute it and/or
+  modify it under the terms of the GNU Lesser General Public
+  License as published by the Free Software Foundation; either
+  version 2.1 of the License, or (at your option) any later version.
+
+  See file LICENSE.txt for further informations on licensing terms.
+
+  Last updated by Jeff Hoefs: December 26th, 2015
+*/
+
+#include <SoftPWMServo.h>  // Gives us PWM and Servo on every pin
+#include <Wire.h>
+#include <Firmata.h>
+
+#define I2C_WRITE                   B00000000
+#define I2C_READ                    B00001000
+#define I2C_READ_CONTINUOUSLY       B00010000
+#define I2C_STOP_READING            B00011000
+#define I2C_READ_WRITE_MODE_MASK    B00011000
+#define I2C_10BIT_ADDRESS_MODE_MASK B00100000
+#define I2C_END_TX_MASK             B01000000
+#define I2C_STOP_TX                 1
+#define I2C_RESTART_TX              0
+#define I2C_MAX_QUERIES             8
+#define I2C_REGISTER_NOT_SPECIFIED  -1
+
+// the minimum interval for sampling analog input
+#define MINIMUM_SAMPLING_INTERVAL   1
+
+
+/*==============================================================================
+ * GLOBAL VARIABLES
+ *============================================================================*/
+
+/* analog inputs */
+int analogInputsToReport = 0; // bitwise array to store pin reporting
+
+/* digital input ports */
+byte reportPINs[TOTAL_PORTS];       // 1 = report this port, 0 = silence
+byte previousPINs[TOTAL_PORTS];     // previous 8 bits sent
+
+/* pins configuration */
+byte pinConfig[TOTAL_PINS];         // configuration of every pin
+byte portConfigInputs[TOTAL_PORTS]; // each bit: 1 = pin in INPUT, 0 = anything else
+int pinState[TOTAL_PINS];           // any value that has been written
+
+/* timer variables */
+unsigned long currentMillis;        // store the current value from millis()
+unsigned long previousMillis;       // for comparison with currentMillis
+unsigned int samplingInterval = 19; // how often to run the main loop (in ms)
+
+/* i2c data */
+struct i2c_device_info {
+  byte addr;
+  int reg;
+  byte bytes;
+  byte stopTX;
+};
+
+/* for i2c read continuous more */
+i2c_device_info query[I2C_MAX_QUERIES];
+
+byte i2cRxData[32];
+boolean isI2CEnabled = false;
+signed char queryIndex = -1;
+// default delay time between i2c read request and Wire.requestFrom()
+unsigned int i2cReadDelayTime = 0;
+
+SoftServo servos[MAX_SERVOS];
+byte servoPinMap[TOTAL_PINS];
+byte detachedServos[MAX_SERVOS];
+byte detachedServoCount = 0;
+byte servoCount = 0;
+
+boolean isResetting = false;
+
+/* utility functions */
+void wireWrite(byte data)
+{
+#if ARDUINO >= 100
+  Wire.write((byte)data);
+#else
+  Wire.send(data);
+#endif
+}
+
+byte wireRead(void)
+{
+#if ARDUINO >= 100
+  return Wire.read();
+#else
+  return Wire.receive();
+#endif
+}
+
+/*==============================================================================
+ * FUNCTIONS
+ *============================================================================*/
+
+void attachServo(byte pin, int minPulse, int maxPulse)
+{
+  if (servoCount < MAX_SERVOS) {
+    // reuse indexes of detached servos until all have been reallocated
+    if (detachedServoCount > 0) {
+      servoPinMap[pin] = detachedServos[detachedServoCount - 1];
+      if (detachedServoCount > 0) detachedServoCount--;
+    } else {
+      servoPinMap[pin] = servoCount;
+      servoCount++;
+    }
+    if (minPulse > 0 && maxPulse > 0) {
+      servos[servoPinMap[pin]].attach(PIN_TO_DIGITAL(pin), minPulse, maxPulse);
+    } else {
+      servos[servoPinMap[pin]].attach(PIN_TO_DIGITAL(pin));
+    }
+  } else {
+    Firmata.sendString("Max servos attached");
+  }
+}
+
+void detachServo(byte pin)
+{
+  servos[servoPinMap[pin]].detach();
+  // if we're detaching the last servo, decrement the count
+  // otherwise store the index of the detached servo
+  if (servoPinMap[pin] == servoCount && servoCount > 0) {
+    servoCount--;
+  } else if (servoCount > 0) {
+    // keep track of detached servos because we want to reuse their indexes
+    // before incrementing the count of attached servos
+    detachedServoCount++;
+    detachedServos[detachedServoCount - 1] = servoPinMap[pin];
+  }
+
+  servoPinMap[pin] = 255;
+}
+
+void readAndReportData(byte address, int theRegister, byte numBytes, byte stopTX) {
+  // allow I2C requests that don't require a register read
+  // for example, some devices using an interrupt pin to signify new data available
+  // do not always require the register read so upon interrupt you call Wire.requestFrom()
+  if (theRegister != I2C_REGISTER_NOT_SPECIFIED) {
+    Wire.beginTransmission(address);
+    wireWrite((byte)theRegister);
+    Wire.endTransmission(stopTX); // default = true
+    // do not set a value of 0
+    if (i2cReadDelayTime > 0) {
+      // delay is necessary for some devices such as WiiNunchuck
+      delayMicroseconds(i2cReadDelayTime);
+    }
+  } else {
+    theRegister = 0;  // fill the register with a dummy value
+  }
+
+  Wire.requestFrom(address, numBytes);  // all bytes are returned in requestFrom
+
+  // check to be sure correct number of bytes were returned by slave
+  if (numBytes < Wire.available()) {
+    Firmata.sendString("I2C: Too many bytes received");
+  } else if (numBytes > Wire.available()) {
+    Firmata.sendString("I2C: Too few bytes received");
+  }
+
+  i2cRxData[0] = address;
+  i2cRxData[1] = theRegister;
+
+  for (int i = 0; i < numBytes && Wire.available(); i++) {
+    i2cRxData[2 + i] = wireRead();
+  }
+
+  // send slave address, register and received bytes
+  Firmata.sendSysex(SYSEX_I2C_REPLY, numBytes + 2, i2cRxData);
+}
+
+void outputPort(byte portNumber, byte portValue, byte forceSend)
+{
+  // pins not configured as INPUT are cleared to zeros
+  portValue = portValue & portConfigInputs[portNumber];
+  // only send if the value is different than previously sent
+  if (forceSend || previousPINs[portNumber] != portValue) {
+    Firmata.sendDigitalPort(portNumber, portValue);
+    previousPINs[portNumber] = portValue;
+  }
+}
+
+/* -----------------------------------------------------------------------------
+ * check all the active digital inputs for change of state, then add any events
+ * to the Serial output queue using Serial.print() */
+void checkDigitalInputs(void)
+{
+  /* Using non-looping code allows constants to be given to readPort().
+   * The compiler will apply substantial optimizations if the inputs
+   * to readPort() are compile-time constants. */
+  if (TOTAL_PORTS > 0 && reportPINs[0]) outputPort(0, readPort(0, portConfigInputs[0]), false);
+  if (TOTAL_PORTS > 1 && reportPINs[1]) outputPort(1, readPort(1, portConfigInputs[1]), false);
+  if (TOTAL_PORTS > 2 && reportPINs[2]) outputPort(2, readPort(2, portConfigInputs[2]), false);
+  if (TOTAL_PORTS > 3 && reportPINs[3]) outputPort(3, readPort(3, portConfigInputs[3]), false);
+  if (TOTAL_PORTS > 4 && reportPINs[4]) outputPort(4, readPort(4, portConfigInputs[4]), false);
+  if (TOTAL_PORTS > 5 && reportPINs[5]) outputPort(5, readPort(5, portConfigInputs[5]), false);
+  if (TOTAL_PORTS > 6 && reportPINs[6]) outputPort(6, readPort(6, portConfigInputs[6]), false);
+  if (TOTAL_PORTS > 7 && reportPINs[7]) outputPort(7, readPort(7, portConfigInputs[7]), false);
+  if (TOTAL_PORTS > 8 && reportPINs[8]) outputPort(8, readPort(8, portConfigInputs[8]), false);
+  if (TOTAL_PORTS > 9 && reportPINs[9]) outputPort(9, readPort(9, portConfigInputs[9]), false);
+  if (TOTAL_PORTS > 10 && reportPINs[10]) outputPort(10, readPort(10, portConfigInputs[10]), false);
+  if (TOTAL_PORTS > 11 && reportPINs[11]) outputPort(11, readPort(11, portConfigInputs[11]), false);
+  if (TOTAL_PORTS > 12 && reportPINs[12]) outputPort(12, readPort(12, portConfigInputs[12]), false);
+  if (TOTAL_PORTS > 13 && reportPINs[13]) outputPort(13, readPort(13, portConfigInputs[13]), false);
+  if (TOTAL_PORTS > 14 && reportPINs[14]) outputPort(14, readPort(14, portConfigInputs[14]), false);
+  if (TOTAL_PORTS > 15 && reportPINs[15]) outputPort(15, readPort(15, portConfigInputs[15]), false);
+}
+
+// -----------------------------------------------------------------------------
+/* Sets a pin that is in Servo mode to a particular output value
+ * (i.e. pulse width). Different boards may have different ways of
+ * setting servo values, so putting it in a function keeps things cleaner.
+ */
+void servoWrite(byte pin, int value)
+{
+  SoftPWMServoPWMWrite(PIN_TO_PWM(pin), value);
+}
+
+// -----------------------------------------------------------------------------
+/* sets the pin mode to the correct state and sets the relevant bits in the
+ * two bit-arrays that track Digital I/O and PWM status
+ */
+void setPinModeCallback(byte pin, int mode)
+{
+  if (pinConfig[pin] == PIN_MODE_IGNORE)
+    return;
+
+  if (pinConfig[pin] == PIN_MODE_I2C && isI2CEnabled && mode != PIN_MODE_I2C) {
+    // disable i2c so pins can be used for other functions
+    // the following if statements should reconfigure the pins properly
+    disableI2CPins();
+  }
+  if (IS_PIN_DIGITAL(pin) && mode != PIN_MODE_SERVO) {
+    if (servoPinMap[pin] < MAX_SERVOS && servos[servoPinMap[pin]].attached()) {
+      detachServo(pin);
+    }
+  }
+  if (IS_PIN_ANALOG(pin)) {
+    reportAnalogCallback(PIN_TO_ANALOG(pin), mode == PIN_MODE_ANALOG ? 1 : 0); // turn on/off reporting
+  }
+  if (IS_PIN_DIGITAL(pin)) {
+    if (mode == INPUT || mode == PIN_MODE_PULLUP) {
+      portConfigInputs[pin / 8] |= (1 << (pin & 7));
+    } else {
+      portConfigInputs[pin / 8] &= ~(1 << (pin & 7));
+    }
+  }
+  pinState[pin] = 0;
+  switch (mode) {
+    case PIN_MODE_ANALOG:
+      if (IS_PIN_ANALOG(pin)) {
+        if (IS_PIN_DIGITAL(pin)) {
+          pinMode(PIN_TO_DIGITAL(pin), INPUT);    // disable output driver
+#if ARDUINO <= 100
+          // deprecated since Arduino 1.0.1 - TODO: drop support in Firmata 2.6
+          digitalWrite(PIN_TO_DIGITAL(pin), LOW); // disable internal pull-ups
+#endif
+        }
+        pinConfig[pin] = PIN_MODE_ANALOG;
+      }
+      break;
+    case INPUT:
+      if (IS_PIN_DIGITAL(pin)) {
+        pinMode(PIN_TO_DIGITAL(pin), INPUT);    // disable output driver
+#if ARDUINO <= 100
+        // deprecated since Arduino 1.0.1 - TODO: drop support in Firmata 2.6
+        digitalWrite(PIN_TO_DIGITAL(pin), LOW); // disable internal pull-ups
+#endif
+        pinConfig[pin] = INPUT;
+      }
+      break;
+    case PIN_MODE_PULLUP:
+      if (IS_PIN_DIGITAL(pin)) {
+        pinMode(PIN_TO_DIGITAL(pin), INPUT_PULLUP);
+        pinConfig[pin] = PIN_MODE_PULLUP;
+        pinState[pin] = 1;
+      }
+      break;
+    case OUTPUT:
+      if (IS_PIN_DIGITAL(pin)) {
+        digitalWrite(PIN_TO_DIGITAL(pin), LOW); // disable PWM
+        pinMode(PIN_TO_DIGITAL(pin), OUTPUT);
+        pinConfig[pin] = OUTPUT;
+      }
+      break;
+    case PIN_MODE_PWM:
+      if (IS_PIN_PWM(pin)) {
+        pinMode(PIN_TO_PWM(pin), OUTPUT);
+        servoWrite(PIN_TO_PWM(pin), 0);
+        pinConfig[pin] = PIN_MODE_PWM;
+      }
+      break;
+    case PIN_MODE_SERVO:
+      if (IS_PIN_DIGITAL(pin)) {
+        pinConfig[pin] = PIN_MODE_SERVO;
+        if (servoPinMap[pin] == 255 || !servos[servoPinMap[pin]].attached()) {
+          // pass -1 for min and max pulse values to use default values set
+          // by Servo library
+          attachServo(pin, -1, -1);
+        }
+      }
+      break;
+    case PIN_MODE_I2C:
+      if (IS_PIN_I2C(pin)) {
+        // mark the pin as i2c
+        // the user must call I2C_CONFIG to enable I2C for a device
+        pinConfig[pin] = PIN_MODE_I2C;
+      }
+      break;
+    default:
+      Firmata.sendString("Unknown pin mode"); // TODO: put error msgs in EEPROM
+  }
+  // TODO: save status to EEPROM here, if changed
+}
+
+/*
+ * Sets the value of an individual pin. Useful if you want to set a pin value but
+ * are not tracking the digital port state.
+ * Can only be used on pins configured as OUTPUT.
+ * Cannot be used to enable pull-ups on Digital INPUT pins.
+ */
+void setPinValueCallback(byte pin, int value)
+{
+  if (pin < TOTAL_PINS && IS_PIN_DIGITAL(pin)) {
+    if (pinConfig[pin] == OUTPUT) {
+      pinState[pin] = value;
+      digitalWrite(PIN_TO_DIGITAL(pin), value);
+    }
+  }
+}
+
+void analogWriteCallback(byte pin, int value)
+{
+  if (pin < TOTAL_PINS) {
+    switch (pinConfig[pin]) {
+      case PIN_MODE_SERVO:
+        if (IS_PIN_DIGITAL(pin))
+          servos[servoPinMap[pin]].write(value);
+        pinState[pin] = value;
+        break;
+      case PIN_MODE_PWM:
+        if (IS_PIN_PWM(pin))
+          servoWrite(PIN_TO_PWM(pin), value);
+        pinState[pin] = value;
+        break;
+    }
+  }
+}
+
+void digitalWriteCallback(byte port, int value)
+{
+  byte pin, lastPin, pinValue, mask = 1, pinWriteMask = 0;
+
+  if (port < TOTAL_PORTS) {
+    // create a mask of the pins on this port that are writable.
+    lastPin = port * 8 + 8;
+    if (lastPin > TOTAL_PINS) lastPin = TOTAL_PINS;
+    for (pin = port * 8; pin < lastPin; pin++) {
+      // do not disturb non-digital pins (eg, Rx & Tx)
+      if (IS_PIN_DIGITAL(pin)) {
+        // do not touch pins in PWM, ANALOG, SERVO or other modes
+        if (pinConfig[pin] == OUTPUT || pinConfig[pin] == INPUT) {
+          pinValue = ((byte)value & mask) ? 1 : 0;
+          if (pinConfig[pin] == OUTPUT) {
+            pinWriteMask |= mask;
+          } else if (pinConfig[pin] == INPUT && pinValue == 1 && pinState[pin] != 1) {
+            // only handle INPUT here for backwards compatibility
+#if ARDUINO > 100
+            pinMode(pin, INPUT_PULLUP);
+#else
+            // only write to the INPUT pin to enable pullups if Arduino v1.0.0 or earlier
+            pinWriteMask |= mask;
+#endif
+          }
+          pinState[pin] = pinValue;
+        }
+      }
+      mask = mask << 1;
+    }
+    writePort(port, (byte)value, pinWriteMask);
+  }
+}
+
+
+// -----------------------------------------------------------------------------
+/* sets bits in a bit array (int) to toggle the reporting of the analogIns
+ */
+//void FirmataClass::setAnalogPinReporting(byte pin, byte state) {
+//}
+void reportAnalogCallback(byte analogPin, int value)
+{
+  if (analogPin < TOTAL_ANALOG_PINS) {
+    if (value == 0) {
+      analogInputsToReport = analogInputsToReport & ~ (1 << analogPin);
+    } else {
+      analogInputsToReport = analogInputsToReport | (1 << analogPin);
+      // prevent during system reset or all analog pin values will be reported
+      // which may report noise for unconnected analog pins
+      if (!isResetting) {
+        // Send pin value immediately. This is helpful when connected via
+        // ethernet, wi-fi or bluetooth so pin states can be known upon
+        // reconnecting.
+        Firmata.sendAnalog(analogPin, analogRead(analogPin));
+      }
+    }
+  }
+  // TODO: save status to EEPROM here, if changed
+}
+
+void reportDigitalCallback(byte port, int value)
+{
+  if (port < TOTAL_PORTS) {
+    reportPINs[port] = (byte)value;
+    // Send port value immediately. This is helpful when connected via
+    // ethernet, wi-fi or bluetooth so pin states can be known upon
+    // reconnecting.
+    if (value) outputPort(port, readPort(port, portConfigInputs[port]), true);
+  }
+  // do not disable analog reporting on these 8 pins, to allow some
+  // pins used for digital, others analog.  Instead, allow both types
+  // of reporting to be enabled, but check if the pin is configured
+  // as analog when sampling the analog inputs.  Likewise, while
+  // scanning digital pins, portConfigInputs will mask off values from any
+  // pins configured as analog
+}
+
+/*==============================================================================
+ * SYSEX-BASED commands
+ *============================================================================*/
+
+void sysexCallback(byte command, byte argc, byte *argv)
+{
+  byte mode;
+  byte stopTX;
+  byte slaveAddress;
+  byte data;
+  int slaveRegister;
+  unsigned int delayTime;
+
+  switch (command) {
+    case I2C_REQUEST:
+      mode = argv[1] & I2C_READ_WRITE_MODE_MASK;
+      if (argv[1] & I2C_10BIT_ADDRESS_MODE_MASK) {
+        Firmata.sendString("10-bit addressing not supported");
+        return;
+      }
+      else {
+        slaveAddress = argv[0];
+      }
+
+      // need to invert the logic here since 0 will be default for client
+      // libraries that have not updated to add support for restart tx
+      if (argv[1] & I2C_END_TX_MASK) {
+        stopTX = I2C_RESTART_TX;
+      }
+      else {
+        stopTX = I2C_STOP_TX; // default
+      }
+
+      switch (mode) {
+        case I2C_WRITE:
+          Wire.beginTransmission(slaveAddress);
+          for (byte i = 2; i < argc; i += 2) {
+            data = argv[i] + (argv[i + 1] << 7);
+            wireWrite(data);
+          }
+          Wire.endTransmission();
+          delayMicroseconds(70);
+          break;
+        case I2C_READ:
+          if (argc == 6) {
+            // a slave register is specified
+            slaveRegister = argv[2] + (argv[3] << 7);
+            data = argv[4] + (argv[5] << 7);  // bytes to read
+          }
+          else {
+            // a slave register is NOT specified
+            slaveRegister = I2C_REGISTER_NOT_SPECIFIED;
+            data = argv[2] + (argv[3] << 7);  // bytes to read
+          }
+          readAndReportData(slaveAddress, (int)slaveRegister, data, stopTX);
+          break;
+        case I2C_READ_CONTINUOUSLY:
+          if ((queryIndex + 1) >= I2C_MAX_QUERIES) {
+            // too many queries, just ignore
+            Firmata.sendString("too many queries");
+            break;
+          }
+          if (argc == 6) {
+            // a slave register is specified
+            slaveRegister = argv[2] + (argv[3] << 7);
+            data = argv[4] + (argv[5] << 7);  // bytes to read
+          }
+          else {
+            // a slave register is NOT specified
+            slaveRegister = (int)I2C_REGISTER_NOT_SPECIFIED;
+            data = argv[2] + (argv[3] << 7);  // bytes to read
+          }
+          queryIndex++;
+          query[queryIndex].addr = slaveAddress;
+          query[queryIndex].reg = slaveRegister;
+          query[queryIndex].bytes = data;
+          query[queryIndex].stopTX = stopTX;
+          break;
+        case I2C_STOP_READING:
+          byte queryIndexToSkip;
+          // if read continuous mode is enabled for only 1 i2c device, disable
+          // read continuous reporting for that device
+          if (queryIndex <= 0) {
+            queryIndex = -1;
+          } else {
+            queryIndexToSkip = 0;
+            // if read continuous mode is enabled for multiple devices,
+            // determine which device to stop reading and remove it's data from
+            // the array, shifiting other array data to fill the space
+            for (byte i = 0; i < queryIndex + 1; i++) {
+              if (query[i].addr == slaveAddress) {
+                queryIndexToSkip = i;
+                break;
+              }
+            }
+
+            for (byte i = queryIndexToSkip; i < queryIndex + 1; i++) {
+              if (i < I2C_MAX_QUERIES) {
+                query[i].addr = query[i + 1].addr;
+                query[i].reg = query[i + 1].reg;
+                query[i].bytes = query[i + 1].bytes;
+                query[i].stopTX = query[i + 1].stopTX;
+              }
+            }
+            queryIndex--;
+          }
+          break;
+        default:
+          break;
+      }
+      break;
+    case I2C_CONFIG:
+      delayTime = (argv[0] + (argv[1] << 7));
+
+      if (delayTime > 0) {
+        i2cReadDelayTime = delayTime;
+      }
+
+      if (!isI2CEnabled) {
+        enableI2CPins();
+      }
+
+      break;
+    case SERVO_CONFIG:
+      if (argc > 4) {
+        // these vars are here for clarity, they'll optimized away by the compiler
+        byte pin = argv[0];
+        int minPulse = argv[1] + (argv[2] << 7);
+        int maxPulse = argv[3] + (argv[4] << 7);
+
+        if (IS_PIN_DIGITAL(pin)) {
+          if (servoPinMap[pin] < MAX_SERVOS && servos[servoPinMap[pin]].attached()) {
+            detachServo(pin);
+          }
+          attachServo(pin, minPulse, maxPulse);
+          setPinModeCallback(pin, PIN_MODE_SERVO);
+        }
+      }
+      break;
+    case SAMPLING_INTERVAL:
+      if (argc > 1) {
+        samplingInterval = argv[0] + (argv[1] << 7);
+        if (samplingInterval < MINIMUM_SAMPLING_INTERVAL) {
+          samplingInterval = MINIMUM_SAMPLING_INTERVAL;
+        }
+      } else {
+        //Firmata.sendString("Not enough data");
+      }
+      break;
+    case EXTENDED_ANALOG:
+      if (argc > 1) {
+        int val = argv[1];
+        if (argc > 2) val |= (argv[2] << 7);
+        if (argc > 3) val |= (argv[3] << 14);
+        analogWriteCallback(argv[0], val);
+      }
+      break;
+    case CAPABILITY_QUERY:
+      Firmata.write(START_SYSEX);
+      Firmata.write(CAPABILITY_RESPONSE);
+      for (byte pin = 0; pin < TOTAL_PINS; pin++) {
+        if (IS_PIN_DIGITAL(pin)) {
+          Firmata.write((byte)INPUT);
+          Firmata.write(1);
+          Firmata.write((byte)PIN_MODE_PULLUP);
+          Firmata.write(1);
+          Firmata.write((byte)OUTPUT);
+          Firmata.write(1);
+        }
+        if (IS_PIN_ANALOG(pin)) {
+          Firmata.write(PIN_MODE_ANALOG);
+          Firmata.write(10); // 10 = 10-bit resolution
+        }
+        if (IS_PIN_PWM(pin)) {
+          Firmata.write(PIN_MODE_PWM);
+          Firmata.write(8); // 8 = 8-bit resolution
+        }
+        if (IS_PIN_DIGITAL(pin)) {
+          Firmata.write(PIN_MODE_SERVO);
+          Firmata.write(14);
+        }
+        if (IS_PIN_I2C(pin)) {
+          Firmata.write(PIN_MODE_I2C);
+          Firmata.write(1);  // TODO: could assign a number to map to SCL or SDA
+        }
+        Firmata.write(127);
+      }
+      Firmata.write(END_SYSEX);
+      break;
+    case PIN_STATE_QUERY:
+      if (argc > 0) {
+        byte pin = argv[0];
+        Firmata.write(START_SYSEX);
+        Firmata.write(PIN_STATE_RESPONSE);
+        Firmata.write(pin);
+        if (pin < TOTAL_PINS) {
+          Firmata.write((byte)pinConfig[pin]);
+          Firmata.write((byte)pinState[pin] & 0x7F);
+          if (pinState[pin] & 0xFF80) Firmata.write((byte)(pinState[pin] >> 7) & 0x7F);
+          if (pinState[pin] & 0xC000) Firmata.write((byte)(pinState[pin] >> 14) & 0x7F);
+        }
+        Firmata.write(END_SYSEX);
+      }
+      break;
+    case ANALOG_MAPPING_QUERY:
+      Firmata.write(START_SYSEX);
+      Firmata.write(ANALOG_MAPPING_RESPONSE);
+      for (byte pin = 0; pin < TOTAL_PINS; pin++) {
+        Firmata.write(IS_PIN_ANALOG(pin) ? PIN_TO_ANALOG(pin) : 127);
+      }
+      Firmata.write(END_SYSEX);
+      break;
+  }
+}
+
+void enableI2CPins()
+{
+  byte i;
+  // is there a faster way to do this? would probaby require importing
+  // Arduino.h to get SCL and SDA pins
+  for (i = 0; i < TOTAL_PINS; i++) {
+    if (IS_PIN_I2C(i)) {
+      // mark pins as i2c so they are ignore in non i2c data requests
+      setPinModeCallback(i, PIN_MODE_I2C);
+    }
+  }
+
+  isI2CEnabled = true;
+
+  Wire.begin();
+}
+
+/* disable the i2c pins so they can be used for other functions */
+void disableI2CPins() {
+  isI2CEnabled = false;
+  // disable read continuous mode for all devices
+  queryIndex = -1;
+}
+
+/*==============================================================================
+ * SETUP()
+ *============================================================================*/
+
+void systemResetCallback()
+{
+  isResetting = true;
+  // initialize a defalt state
+  // TODO: option to load config from EEPROM instead of default
+  if (isI2CEnabled) {
+    disableI2CPins();
+  }
+
+  for (byte i = 0; i < TOTAL_PORTS; i++) {
+    reportPINs[i] = false;    // by default, reporting off
+    portConfigInputs[i] = 0;  // until activated
+    previousPINs[i] = 0;
+  }
+
+  for (byte i = 0; i < TOTAL_PINS; i++) {
+    // pins with analog capability default to analog input
+    // otherwise, pins default to digital output
+    if (IS_PIN_ANALOG(i)) {
+      // turns off pullup, configures everything
+      setPinModeCallback(i, PIN_MODE_ANALOG);
+    } else if (IS_PIN_DIGITAL(i)) {
+      // sets the output to 0, configures portConfigInputs
+      setPinModeCallback(i, OUTPUT);
+    }
+
+    servoPinMap[i] = 255;
+  }
+  // by default, do not report any analog inputs
+  analogInputsToReport = 0;
+
+  detachedServoCount = 0;
+  servoCount = 0;
+
+  /* send digital inputs to set the initial state on the host computer,
+   * since once in the loop(), this firmware will only send on change */
+  /*
+  TODO: this can never execute, since no pins default to digital input
+        but it will be needed when/if we support EEPROM stored config
+  for (byte i=0; i < TOTAL_PORTS; i++) {
+    outputPort(i, readPort(i, portConfigInputs[i]), true);
+  }
+  */
+  isResetting = false;
+}
+
+void setup()
+{
+  Firmata.setFirmwareVersion(FIRMATA_FIRMWARE_MAJOR_VERSION, FIRMATA_FIRMWARE_MINOR_VERSION);
+
+  Firmata.attach(ANALOG_MESSAGE, analogWriteCallback);
+  Firmata.attach(DIGITAL_MESSAGE, digitalWriteCallback);
+  Firmata.attach(REPORT_ANALOG, reportAnalogCallback);
+  Firmata.attach(REPORT_DIGITAL, reportDigitalCallback);
+  Firmata.attach(SET_PIN_MODE, setPinModeCallback);
+  Firmata.attach(SET_DIGITAL_PIN_VALUE, setPinValueCallback);
+  Firmata.attach(START_SYSEX, sysexCallback);
+  Firmata.attach(SYSTEM_RESET, systemResetCallback);
+
+  /* For chipKIT Pi board, we need to use Serial1. All others just use Serial. */
+#if defined(_BOARD_CHIPKIT_PI_)
+  Serial1.begin(57600);
+  Firmata.begin(Serial1);
+#else
+  Firmata.begin(57600);
+#endif
+  systemResetCallback();  // reset to default config
+}
+
+/*==============================================================================
+ * LOOP()
+ *============================================================================*/
+void loop()
+{
+  byte pin, analogPin;
+
+  /* DIGITALREAD - as fast as possible, check for changes and output them to the
+   * FTDI buffer using Serial.print()  */
+  checkDigitalInputs();
+
+  /* STREAMREAD - processing incoming messagse as soon as possible, while still
+   * checking digital inputs.  */
+  while (Firmata.available())
+    Firmata.processInput();
+
+  // TODO - ensure that Stream buffer doesn't go over 60 bytes
+
+  currentMillis = millis();
+  if (currentMillis - previousMillis > samplingInterval) {
+    previousMillis += samplingInterval;
+    /* ANALOGREAD - do all analogReads() at the configured sampling interval */
+    for (pin = 0; pin < TOTAL_PINS; pin++) {
+      if (IS_PIN_ANALOG(pin) && pinConfig[pin] == PIN_MODE_ANALOG) {
+        analogPin = PIN_TO_ANALOG(pin);
+        if (analogInputsToReport & (1 << analogPin)) {
+          Firmata.sendAnalog(analogPin, analogRead(analogPin));
+        }
+      }
+    }
+    // report i2c data for all device with read continuous mode enabled
+    if (queryIndex > -1) {
+      for (byte i = 0; i < queryIndex + 1; i++) {
+        readAndReportData(query[i].addr, query[i].reg, query[i].bytes, query[i].stopTX);
+      }
+    }
+  }
+}

libraries/Firmata/examples/StandardFirmataEthernet/LICENSE.txt

@@ -0,0 +1,458 @@
+
+		  GNU LESSER GENERAL PUBLIC LICENSE
+		       Version 2.1, February 1999
+
+ Copyright (C) 1991, 1999 Free Software Foundation, Inc.
+ 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+ Everyone is permitted to copy and distribute verbatim copies
+ of this license document, but changing it is not allowed.
+
+[This is the first released version of the Lesser GPL.  It also counts
+ as the successor of the GNU Library Public License, version 2, hence
+ the version number 2.1.]
+
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+signed it.  However, nothing else grants you permission to modify or
+distribute the Library or its derivative works.  These actions are
+prohibited by law if you do not accept this License.  Therefore, by
+modifying or distributing the Library (or any work based on the
+Library), you indicate your acceptance of this License to do so, and
+all its terms and conditions for copying, distributing or modifying
+the Library or works based on it.
+
+  10. Each time you redistribute the Library (or any work based on the
+Library), the recipient automatically receives a license from the
+original licensor to copy, distribute, link with or modify the Library
+subject to these terms and conditions.  You may not impose any further
+restrictions on the recipients' exercise of the rights granted herein.
+You are not responsible for enforcing compliance by third parties with
+this License.
+
+  11. If, as a consequence of a court judgment or allegation of patent
+infringement or for any other reason (not limited to patent issues),
+conditions are imposed on you (whether by court order, agreement or
+otherwise) that contradict the conditions of this License, they do not
+excuse you from the conditions of this License.  If you cannot
+distribute so as to satisfy simultaneously your obligations under this
+License and any other pertinent obligations, then as a consequence you
+may not distribute the Library at all.  For example, if a patent
+license would not permit royalty-free redistribution of the Library by
+all those who receive copies directly or indirectly through you, then
+the only way you could satisfy both it and this License would be to
+refrain entirely from distribution of the Library.
+
+If any portion of this section is held invalid or unenforceable under any
+particular circumstance, the balance of the section is intended to apply,
+and the section as a whole is intended to apply in other circumstances.
+
+It is not the purpose of this section to induce you to infringe any
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+integrity of the free software distribution system which is
+implemented by public license practices.  Many people have made
+generous contributions to the wide range of software distributed
+through that system in reliance on consistent application of that
+system; it is up to the author/donor to decide if he or she is willing
+to distribute software through any other system and a licensee cannot
+impose that choice.
+
+This section is intended to make thoroughly clear what is believed to
+be a consequence of the rest of this License.
+
+  12. If the distribution and/or use of the Library is restricted in
+certain countries either by patents or by copyrighted interfaces, the
+original copyright holder who places the Library under this License may add
+an explicit geographical distribution limitation excluding those countries,
+so that distribution is permitted only in or among countries not thus
+excluded.  In such case, this License incorporates the limitation as if
+written in the body of this License.
+
+  13. The Free Software Foundation may publish revised and/or new
+versions of the Lesser General Public License from time to time.
+Such new versions will be similar in spirit to the present version,
+but may differ in detail to address new problems or concerns.
+
+Each version is given a distinguishing version number.  If the Library
+specifies a version number of this License which applies to it and
+"any later version", you have the option of following the terms and
+conditions either of that version or of any later version published by
+the Free Software Foundation.  If the Library does not specify a
+license version number, you may choose any version ever published by
+the Free Software Foundation.
+
+  14. If you wish to incorporate parts of the Library into other free
+programs whose distribution conditions are incompatible with these,
+write to the author to ask for permission.  For software which is
+copyrighted by the Free Software Foundation, write to the Free
+Software Foundation; we sometimes make exceptions for this.  Our
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+and reuse of software generally.
+
+			    NO WARRANTY
+
+  15. BECAUSE THE LIBRARY IS LICENSED FREE OF CHARGE, THERE IS NO
+WARRANTY FOR THE LIBRARY, TO THE EXTENT PERMITTED BY APPLICABLE LAW.
+EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR
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+SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH
+DAMAGES.
+

libraries/Firmata/examples/StandardFirmataEthernet/StandardFirmataEthernet.ino

@@ -0,0 +1,947 @@
+/*
+  Firmata is a generic protocol for communicating with microcontrollers
+  from software on a host computer. It is intended to work with
+  any host computer software package.
+
+  To download a host software package, please clink on the following link
+  to open the list of Firmata client libraries your default browser.
+
+  https://github.com/firmata/arduino#firmata-client-libraries
+
+  Copyright (C) 2006-2008 Hans-Christoph Steiner.  All rights reserved.
+  Copyright (C) 2010-2011 Paul Stoffregen.  All rights reserved.
+  Copyright (C) 2009 Shigeru Kobayashi.  All rights reserved.
+  Copyright (C) 2009-2015 Jeff Hoefs.  All rights reserved.
+
+  This library is free software; you can redistribute it and/or
+  modify it under the terms of the GNU Lesser General Public
+  License as published by the Free Software Foundation; either
+  version 2.1 of the License, or (at your option) any later version.
+
+  See file LICENSE.txt for further informations on licensing terms.
+
+  Last updated by Jeff Hoefs: December 26th, 2015
+*/
+
+/*
+  README
+
+  To use StandardFirmataEthernet you will need to have one of the following
+  boards or shields:
+
+  - Arduino Ethernet shield (or clone)
+  - Arduino Ethernet board (or clone)
+  - Arduino Yun
+
+  Follow the instructions in the NETWORK CONFIGURATION section below to
+  configure your particular hardware.
+
+  NOTE: If you are using an Arduino Ethernet shield you cannot use the following pins on
+  the following boards. Firmata will ignore any requests to use these pins:
+
+  - Arduino Uno or other ATMega328 boards: (D4, D10, D11, D12, D13)
+  - Arduino Mega: (D4, D10, D50, D51, D52, D53)
+  - Arduino Leonardo: (D4, D10)
+  - Arduino Due: (D4, D10)
+
+  If you are using an ArduinoEthernet board, the following pins cannot be used (same as Uno):
+  - D4, D10, D11, D12, D13
+*/
+
+#include <Servo.h>
+#include <Wire.h>
+#include <Firmata.h>
+
+//#define SERIAL_DEBUG
+#include "utility/firmataDebug.h"
+
+#define I2C_WRITE                   B00000000
+#define I2C_READ                    B00001000
+#define I2C_READ_CONTINUOUSLY       B00010000
+#define I2C_STOP_READING            B00011000
+#define I2C_READ_WRITE_MODE_MASK    B00011000
+#define I2C_10BIT_ADDRESS_MODE_MASK B00100000
+#define I2C_END_TX_MASK             B01000000
+#define I2C_STOP_TX                 1
+#define I2C_RESTART_TX              0
+#define I2C_MAX_QUERIES             8
+#define I2C_REGISTER_NOT_SPECIFIED  -1
+
+// the minimum interval for sampling analog input
+#define MINIMUM_SAMPLING_INTERVAL   1
+
+
+/*==============================================================================
+ * NETWORK CONFIGURATION
+ *
+ * You must configure your particular hardware. Follow the steps below.
+ *============================================================================*/
+
+// STEP 1 [REQUIRED]
+// Uncomment / comment the appropriate set of includes for your hardware (OPTION A or B)
+// Option A is enabled by default.
+
+/*
+ * OPTION A: Configure for Arduino Ethernet board or shield
+ *
+ * To configure StandardFirmataEthernet to use the original WIZ5100-based
+ * ethernet shield or Arduino Ethernet uncomment the includes of 'SPI.h' and 'Ethernet.h':
+ */
+
+#include <SPI.h>
+#include <Ethernet.h>
+
+/*
+ * OPTION B: Configure for Arduin Yun
+ *
+ * To execute StandardFirmataEthernet on Yun uncomment Bridge.h and YunClient.h.
+ * Do not include Ethernet.h or SPI.h above in this case.
+ * On Yun there's no need to configure local_ip and mac in the sketch
+ * as this is configured on the linux-side of Yun.
+ */
+
+// #include <Bridge.h>
+// #include <YunClient.h>
+
+
+// STEP 2 [REQUIRED for all boards and shields]
+// replace with IP of the server you want to connect to, comment out if using 'remote_host'
+#define remote_ip IPAddress(10, 0, 0, 3)
+// *** REMOTE HOST IS NOT YET WORKING ***
+// replace with hostname of server you want to connect to, comment out if using 'remote_ip'
+// #define remote_host "server.local"
+
+// STEP 3 [REQUIRED unless using Arduin Yun]
+// Replace with the port that your server is listening on
+#define remote_port 3030
+
+// STEP 4 [REQUIRED unless using Arduino Yun OR if not using DHCP]
+// Replace with your board or ethernet shield's IP address
+// Comment out if you want to use DHCP
+#define local_ip IPAddress(10, 0, 0, 15)
+
+// STEP 5 [REQUIRED unless using Arduino Yun]
+// replace with ethernet shield mac. Must be unique for your network
+const byte mac[] = {0x90, 0xA2, 0xDA, 0x00, 0x53, 0xE5};
+
+// Since Arduino 1.6.6 ethernet_h is not recognized, even when Ethernet.h is included so this
+// always throws the error. Commenting out until the issue introduced in Arduino 1.6.6 is resolved.
+// #if !defined ethernet_h && !defined _YUN_CLIENT_H_
+// #error "you must uncomment the includes for your board configuration. See OPTIONS A and B in the NETWORK CONFIGURATION SECTION"
+// #endif
+
+#if defined remote_ip && defined remote_host
+#error "cannot define both remote_ip and remote_host at the same time!"
+#endif
+
+
+/*==============================================================================
+ * GLOBAL VARIABLES
+ *============================================================================*/
+
+/* network */
+
+#include "utility/EthernetClientStream.h"
+
+#ifdef _YUN_CLIENT_H_
+YunClient client;
+#else
+EthernetClient client;
+#endif
+
+#if defined remote_ip && !defined remote_host
+#ifdef local_ip
+EthernetClientStream stream(client, local_ip, remote_ip, NULL, remote_port);
+#else
+EthernetClientStream stream(client, IPAddress(0, 0, 0, 0), remote_ip, NULL, remote_port);
+#endif
+#endif
+
+#if !defined remote_ip && defined remote_host
+#ifdef local_ip
+EthernetClientStream stream(client, local_ip, IPAddress(0, 0, 0, 0), remote_host, remote_port);
+#else
+EthernetClientStream stream(client, IPAddress(0, 0, 0, 0), IPAddress(0, 0, 0, 0), remote_host, remote_port);
+#endif
+#endif
+
+/* analog inputs */
+int analogInputsToReport = 0;      // bitwise array to store pin reporting
+
+/* digital input ports */
+byte reportPINs[TOTAL_PORTS];       // 1 = report this port, 0 = silence
+byte previousPINs[TOTAL_PORTS];     // previous 8 bits sent
+
+/* pins configuration */
+byte pinConfig[TOTAL_PINS];         // configuration of every pin
+byte portConfigInputs[TOTAL_PORTS]; // each bit: 1 = pin in INPUT, 0 = anything else
+int pinState[TOTAL_PINS];           // any value that has been written
+
+/* timer variables */
+unsigned long currentMillis;        // store the current value from millis()
+unsigned long previousMillis;       // for comparison with currentMillis
+unsigned int samplingInterval = 19; // how often to sample analog inputs (in ms)
+
+/* i2c data */
+struct i2c_device_info {
+  byte addr;
+  int reg;
+  byte bytes;
+  byte stopTX;
+};
+
+/* for i2c read continuous mode */
+i2c_device_info query[I2C_MAX_QUERIES];
+
+byte i2cRxData[32];
+boolean isI2CEnabled = false;
+signed char queryIndex = -1;
+// default delay time between i2c read request and Wire.requestFrom()
+unsigned int i2cReadDelayTime = 0;
+
+Servo servos[MAX_SERVOS];
+byte servoPinMap[TOTAL_PINS];
+byte detachedServos[MAX_SERVOS];
+byte detachedServoCount = 0;
+byte servoCount = 0;
+
+boolean isResetting = false;
+
+/* utility functions */
+void wireWrite(byte data)
+{
+#if ARDUINO >= 100
+  Wire.write((byte)data);
+#else
+  Wire.send(data);
+#endif
+}
+
+byte wireRead(void)
+{
+#if ARDUINO >= 100
+  return Wire.read();
+#else
+  return Wire.receive();
+#endif
+}
+
+/*==============================================================================
+ * FUNCTIONS
+ *============================================================================*/
+
+void attachServo(byte pin, int minPulse, int maxPulse)
+{
+  if (servoCount < MAX_SERVOS) {
+    // reuse indexes of detached servos until all have been reallocated
+    if (detachedServoCount > 0) {
+      servoPinMap[pin] = detachedServos[detachedServoCount - 1];
+      if (detachedServoCount > 0) detachedServoCount--;
+    } else {
+      servoPinMap[pin] = servoCount;
+      servoCount++;
+    }
+    if (minPulse > 0 && maxPulse > 0) {
+      servos[servoPinMap[pin]].attach(PIN_TO_DIGITAL(pin), minPulse, maxPulse);
+    } else {
+      servos[servoPinMap[pin]].attach(PIN_TO_DIGITAL(pin));
+    }
+  } else {
+    Firmata.sendString("Max servos attached");
+  }
+}
+
+void detachServo(byte pin)
+{
+  servos[servoPinMap[pin]].detach();
+  // if we're detaching the last servo, decrement the count
+  // otherwise store the index of the detached servo
+  if (servoPinMap[pin] == servoCount && servoCount > 0) {
+    servoCount--;
+  } else if (servoCount > 0) {
+    // keep track of detached servos because we want to reuse their indexes
+    // before incrementing the count of attached servos
+    detachedServoCount++;
+    detachedServos[detachedServoCount - 1] = servoPinMap[pin];
+  }
+
+  servoPinMap[pin] = 255;
+}
+
+void readAndReportData(byte address, int theRegister, byte numBytes, byte stopTX) {
+  // allow I2C requests that don't require a register read
+  // for example, some devices using an interrupt pin to signify new data available
+  // do not always require the register read so upon interrupt you call Wire.requestFrom()
+  if (theRegister != I2C_REGISTER_NOT_SPECIFIED) {
+    Wire.beginTransmission(address);
+    wireWrite((byte)theRegister);
+    Wire.endTransmission(stopTX); // default = true
+    // do not set a value of 0
+    if (i2cReadDelayTime > 0) {
+      // delay is necessary for some devices such as WiiNunchuck
+      delayMicroseconds(i2cReadDelayTime);
+    }
+  } else {
+    theRegister = 0;  // fill the register with a dummy value
+  }
+
+  Wire.requestFrom(address, numBytes);  // all bytes are returned in requestFrom
+
+  // check to be sure correct number of bytes were returned by slave
+  if (numBytes < Wire.available()) {
+    Firmata.sendString("I2C: Too many bytes received");
+  } else if (numBytes > Wire.available()) {
+    Firmata.sendString("I2C: Too few bytes received");
+  }
+
+  i2cRxData[0] = address;
+  i2cRxData[1] = theRegister;
+
+  for (int i = 0; i < numBytes && Wire.available(); i++) {
+    i2cRxData[2 + i] = wireRead();
+  }
+
+  // send slave address, register and received bytes
+  Firmata.sendSysex(SYSEX_I2C_REPLY, numBytes + 2, i2cRxData);
+}
+
+void outputPort(byte portNumber, byte portValue, byte forceSend)
+{
+  // pins not configured as INPUT are cleared to zeros
+  portValue = portValue & portConfigInputs[portNumber];
+  // only send if the value is different than previously sent
+  if (forceSend || previousPINs[portNumber] != portValue) {
+    Firmata.sendDigitalPort(portNumber, portValue);
+    previousPINs[portNumber] = portValue;
+  }
+}
+
+/* -----------------------------------------------------------------------------
+ * check all the active digital inputs for change of state, then add any events
+ * to the Stream output queue using Stream.write() */
+void checkDigitalInputs(void)
+{
+  /* Using non-looping code allows constants to be given to readPort().
+   * The compiler will apply substantial optimizations if the inputs
+   * to readPort() are compile-time constants. */
+  if (TOTAL_PORTS > 0 && reportPINs[0]) outputPort(0, readPort(0, portConfigInputs[0]), false);
+  if (TOTAL_PORTS > 1 && reportPINs[1]) outputPort(1, readPort(1, portConfigInputs[1]), false);
+  if (TOTAL_PORTS > 2 && reportPINs[2]) outputPort(2, readPort(2, portConfigInputs[2]), false);
+  if (TOTAL_PORTS > 3 && reportPINs[3]) outputPort(3, readPort(3, portConfigInputs[3]), false);
+  if (TOTAL_PORTS > 4 && reportPINs[4]) outputPort(4, readPort(4, portConfigInputs[4]), false);
+  if (TOTAL_PORTS > 5 && reportPINs[5]) outputPort(5, readPort(5, portConfigInputs[5]), false);
+  if (TOTAL_PORTS > 6 && reportPINs[6]) outputPort(6, readPort(6, portConfigInputs[6]), false);
+  if (TOTAL_PORTS > 7 && reportPINs[7]) outputPort(7, readPort(7, portConfigInputs[7]), false);
+  if (TOTAL_PORTS > 8 && reportPINs[8]) outputPort(8, readPort(8, portConfigInputs[8]), false);
+  if (TOTAL_PORTS > 9 && reportPINs[9]) outputPort(9, readPort(9, portConfigInputs[9]), false);
+  if (TOTAL_PORTS > 10 && reportPINs[10]) outputPort(10, readPort(10, portConfigInputs[10]), false);
+  if (TOTAL_PORTS > 11 && reportPINs[11]) outputPort(11, readPort(11, portConfigInputs[11]), false);
+  if (TOTAL_PORTS > 12 && reportPINs[12]) outputPort(12, readPort(12, portConfigInputs[12]), false);
+  if (TOTAL_PORTS > 13 && reportPINs[13]) outputPort(13, readPort(13, portConfigInputs[13]), false);
+  if (TOTAL_PORTS > 14 && reportPINs[14]) outputPort(14, readPort(14, portConfigInputs[14]), false);
+  if (TOTAL_PORTS > 15 && reportPINs[15]) outputPort(15, readPort(15, portConfigInputs[15]), false);
+}
+
+// -----------------------------------------------------------------------------
+/* sets the pin mode to the correct state and sets the relevant bits in the
+ * two bit-arrays that track Digital I/O and PWM status
+ */
+void setPinModeCallback(byte pin, int mode)
+{
+  if (pinConfig[pin] == PIN_MODE_IGNORE)
+    return;
+
+  if (pinConfig[pin] == PIN_MODE_I2C && isI2CEnabled && mode != PIN_MODE_I2C) {
+    // disable i2c so pins can be used for other functions
+    // the following if statements should reconfigure the pins properly
+    disableI2CPins();
+  }
+  if (IS_PIN_DIGITAL(pin) && mode != PIN_MODE_SERVO) {
+    if (servoPinMap[pin] < MAX_SERVOS && servos[servoPinMap[pin]].attached()) {
+      detachServo(pin);
+    }
+  }
+  if (IS_PIN_ANALOG(pin)) {
+    reportAnalogCallback(PIN_TO_ANALOG(pin), mode == PIN_MODE_ANALOG ? 1 : 0); // turn on/off reporting
+  }
+  if (IS_PIN_DIGITAL(pin)) {
+    if (mode == INPUT || mode == PIN_MODE_PULLUP) {
+      portConfigInputs[pin / 8] |= (1 << (pin & 7));
+    } else {
+      portConfigInputs[pin / 8] &= ~(1 << (pin & 7));
+    }
+  }
+  pinState[pin] = 0;
+  switch (mode) {
+    case PIN_MODE_ANALOG:
+      if (IS_PIN_ANALOG(pin)) {
+        if (IS_PIN_DIGITAL(pin)) {
+          pinMode(PIN_TO_DIGITAL(pin), INPUT);    // disable output driver
+#if ARDUINO <= 100
+          // deprecated since Arduino 1.0.1 - TODO: drop support in Firmata 2.6
+          digitalWrite(PIN_TO_DIGITAL(pin), LOW); // disable internal pull-ups
+#endif
+        }
+        pinConfig[pin] = PIN_MODE_ANALOG;
+      }
+      break;
+    case INPUT:
+      if (IS_PIN_DIGITAL(pin)) {
+        pinMode(PIN_TO_DIGITAL(pin), INPUT);    // disable output driver
+#if ARDUINO <= 100
+        // deprecated since Arduino 1.0.1 - TODO: drop support in Firmata 2.6
+        digitalWrite(PIN_TO_DIGITAL(pin), LOW); // disable internal pull-ups
+#endif
+        pinConfig[pin] = INPUT;
+      }
+      break;
+    case PIN_MODE_PULLUP:
+      if (IS_PIN_DIGITAL(pin)) {
+        pinMode(PIN_TO_DIGITAL(pin), INPUT_PULLUP);
+        pinConfig[pin] = PIN_MODE_PULLUP;
+        pinState[pin] = 1;
+      }
+      break;
+    case OUTPUT:
+      if (IS_PIN_DIGITAL(pin)) {
+        digitalWrite(PIN_TO_DIGITAL(pin), LOW); // disable PWM
+        pinMode(PIN_TO_DIGITAL(pin), OUTPUT);
+        pinConfig[pin] = OUTPUT;
+      }
+      break;
+    case PIN_MODE_PWM:
+      if (IS_PIN_PWM(pin)) {
+        pinMode(PIN_TO_PWM(pin), OUTPUT);
+        analogWrite(PIN_TO_PWM(pin), 0);
+        pinConfig[pin] = PIN_MODE_PWM;
+      }
+      break;
+    case PIN_MODE_SERVO:
+      if (IS_PIN_DIGITAL(pin)) {
+        pinConfig[pin] = PIN_MODE_SERVO;
+        if (servoPinMap[pin] == 255 || !servos[servoPinMap[pin]].attached()) {
+          // pass -1 for min and max pulse values to use default values set
+          // by Servo library
+          attachServo(pin, -1, -1);
+        }
+      }
+      break;
+    case PIN_MODE_I2C:
+      if (IS_PIN_I2C(pin)) {
+        // mark the pin as i2c
+        // the user must call I2C_CONFIG to enable I2C for a device
+        pinConfig[pin] = PIN_MODE_I2C;
+      }
+      break;
+    default:
+      Firmata.sendString("Unknown pin mode"); // TODO: put error msgs in EEPROM
+  }
+  // TODO: save status to EEPROM here, if changed
+}
+
+/*
+ * Sets the value of an individual pin. Useful if you want to set a pin value but
+ * are not tracking the digital port state.
+ * Can only be used on pins configured as OUTPUT.
+ * Cannot be used to enable pull-ups on Digital INPUT pins.
+ */
+void setPinValueCallback(byte pin, int value)
+{
+  if (pin < TOTAL_PINS && IS_PIN_DIGITAL(pin)) {
+    if (pinConfig[pin] == OUTPUT) {
+      pinState[pin] = value;
+      digitalWrite(PIN_TO_DIGITAL(pin), value);
+    }
+  }
+}
+
+void analogWriteCallback(byte pin, int value)
+{
+  if (pin < TOTAL_PINS) {
+    switch (pinConfig[pin]) {
+      case PIN_MODE_SERVO:
+        if (IS_PIN_DIGITAL(pin))
+          servos[servoPinMap[pin]].write(value);
+        pinState[pin] = value;
+        break;
+      case PIN_MODE_PWM:
+        if (IS_PIN_PWM(pin))
+          analogWrite(PIN_TO_PWM(pin), value);
+        pinState[pin] = value;
+        break;
+    }
+  }
+}
+
+void digitalWriteCallback(byte port, int value)
+{
+  byte pin, lastPin, pinValue, mask = 1, pinWriteMask = 0;
+
+  if (port < TOTAL_PORTS) {
+    // create a mask of the pins on this port that are writable.
+    lastPin = port * 8 + 8;
+    if (lastPin > TOTAL_PINS) lastPin = TOTAL_PINS;
+    for (pin = port * 8; pin < lastPin; pin++) {
+      // do not disturb non-digital pins (eg, Rx & Tx)
+      if (IS_PIN_DIGITAL(pin)) {
+        // do not touch pins in PWM, ANALOG, SERVO or other modes
+        if (pinConfig[pin] == OUTPUT || pinConfig[pin] == INPUT) {
+          pinValue = ((byte)value & mask) ? 1 : 0;
+          if (pinConfig[pin] == OUTPUT) {
+            pinWriteMask |= mask;
+          } else if (pinConfig[pin] == INPUT && pinValue == 1 && pinState[pin] != 1) {
+            // only handle INPUT here for backwards compatibility
+#if ARDUINO > 100
+            pinMode(pin, INPUT_PULLUP);
+#else
+            // only write to the INPUT pin to enable pullups if Arduino v1.0.0 or earlier
+            pinWriteMask |= mask;
+#endif
+          }
+          pinState[pin] = pinValue;
+        }
+      }
+      mask = mask << 1;
+    }
+    writePort(port, (byte)value, pinWriteMask);
+  }
+}
+
+
+// -----------------------------------------------------------------------------
+/* sets bits in a bit array (int) to toggle the reporting of the analogIns
+ */
+//void FirmataClass::setAnalogPinReporting(byte pin, byte state) {
+//}
+void reportAnalogCallback(byte analogPin, int value)
+{
+  if (analogPin < TOTAL_ANALOG_PINS) {
+    if (value == 0) {
+      analogInputsToReport = analogInputsToReport & ~ (1 << analogPin);
+    } else {
+      analogInputsToReport = analogInputsToReport | (1 << analogPin);
+      // prevent during system reset or all analog pin values will be reported
+      // which may report noise for unconnected analog pins
+      if (!isResetting) {
+        // Send pin value immediately. This is helpful when connected via
+        // ethernet, wi-fi or bluetooth so pin states can be known upon
+        // reconnecting.
+        Firmata.sendAnalog(analogPin, analogRead(analogPin));
+      }
+    }
+  }
+  // TODO: save status to EEPROM here, if changed
+}
+
+void reportDigitalCallback(byte port, int value)
+{
+  if (port < TOTAL_PORTS) {
+    reportPINs[port] = (byte)value;
+    // Send port value immediately. This is helpful when connected via
+    // ethernet, wi-fi or bluetooth so pin states can be known upon
+    // reconnecting.
+    if (value) outputPort(port, readPort(port, portConfigInputs[port]), true);
+  }
+  // do not disable analog reporting on these 8 pins, to allow some
+  // pins used for digital, others analog.  Instead, allow both types
+  // of reporting to be enabled, but check if the pin is configured
+  // as analog when sampling the analog inputs.  Likewise, while
+  // scanning digital pins, portConfigInputs will mask off values from any
+  // pins configured as analog
+}
+
+/*==============================================================================
+ * SYSEX-BASED commands
+ *============================================================================*/
+
+void sysexCallback(byte command, byte argc, byte *argv)
+{
+  byte mode;
+  byte stopTX;
+  byte slaveAddress;
+  byte data;
+  int slaveRegister;
+  unsigned int delayTime;
+
+  switch (command) {
+    case I2C_REQUEST:
+      mode = argv[1] & I2C_READ_WRITE_MODE_MASK;
+      if (argv[1] & I2C_10BIT_ADDRESS_MODE_MASK) {
+        Firmata.sendString("10-bit addressing not supported");
+        return;
+      }
+      else {
+        slaveAddress = argv[0];
+      }
+
+      // need to invert the logic here since 0 will be default for client
+      // libraries that have not updated to add support for restart tx
+      if (argv[1] & I2C_END_TX_MASK) {
+        stopTX = I2C_RESTART_TX;
+      }
+      else {
+        stopTX = I2C_STOP_TX; // default
+      }
+
+      switch (mode) {
+        case I2C_WRITE:
+          Wire.beginTransmission(slaveAddress);
+          for (byte i = 2; i < argc; i += 2) {
+            data = argv[i] + (argv[i + 1] << 7);
+            wireWrite(data);
+          }
+          Wire.endTransmission();
+          delayMicroseconds(70);
+          break;
+        case I2C_READ:
+          if (argc == 6) {
+            // a slave register is specified
+            slaveRegister = argv[2] + (argv[3] << 7);
+            data = argv[4] + (argv[5] << 7);  // bytes to read
+          }
+          else {
+            // a slave register is NOT specified
+            slaveRegister = I2C_REGISTER_NOT_SPECIFIED;
+            data = argv[2] + (argv[3] << 7);  // bytes to read
+          }
+          readAndReportData(slaveAddress, (int)slaveRegister, data, stopTX);
+          break;
+        case I2C_READ_CONTINUOUSLY:
+          if ((queryIndex + 1) >= I2C_MAX_QUERIES) {
+            // too many queries, just ignore
+            Firmata.sendString("too many I2C queries");
+            break;
+          }
+          if (argc == 6) {
+            // a slave register is specified
+            slaveRegister = argv[2] + (argv[3] << 7);
+            data = argv[4] + (argv[5] << 7);  // bytes to read
+          }
+          else {
+            // a slave register is NOT specified
+            slaveRegister = (int)I2C_REGISTER_NOT_SPECIFIED;
+            data = argv[2] + (argv[3] << 7);  // bytes to read
+          }
+          queryIndex++;
+          query[queryIndex].addr = slaveAddress;
+          query[queryIndex].reg = slaveRegister;
+          query[queryIndex].bytes = data;
+          query[queryIndex].stopTX = stopTX;
+          break;
+        case I2C_STOP_READING:
+          byte queryIndexToSkip;
+          // if read continuous mode is enabled for only 1 i2c device, disable
+          // read continuous reporting for that device
+          if (queryIndex <= 0) {
+            queryIndex = -1;
+          } else {
+            queryIndexToSkip = 0;
+            // if read continuous mode is enabled for multiple devices,
+            // determine which device to stop reading and remove it's data from
+            // the array, shifiting other array data to fill the space
+            for (byte i = 0; i < queryIndex + 1; i++) {
+              if (query[i].addr == slaveAddress) {
+                queryIndexToSkip = i;
+                break;
+              }
+            }
+
+            for (byte i = queryIndexToSkip; i < queryIndex + 1; i++) {
+              if (i < I2C_MAX_QUERIES) {
+                query[i].addr = query[i + 1].addr;
+                query[i].reg = query[i + 1].reg;
+                query[i].bytes = query[i + 1].bytes;
+                query[i].stopTX = query[i + 1].stopTX;
+              }
+            }
+            queryIndex--;
+          }
+          break;
+        default:
+          break;
+      }
+      break;
+    case I2C_CONFIG:
+      delayTime = (argv[0] + (argv[1] << 7));
+
+      if (delayTime > 0) {
+        i2cReadDelayTime = delayTime;
+      }
+
+      if (!isI2CEnabled) {
+        enableI2CPins();
+      }
+
+      break;
+    case SERVO_CONFIG:
+      if (argc > 4) {
+        // these vars are here for clarity, they'll optimized away by the compiler
+        byte pin = argv[0];
+        int minPulse = argv[1] + (argv[2] << 7);
+        int maxPulse = argv[3] + (argv[4] << 7);
+
+        if (IS_PIN_DIGITAL(pin)) {
+          if (servoPinMap[pin] < MAX_SERVOS && servos[servoPinMap[pin]].attached()) {
+            detachServo(pin);
+          }
+          attachServo(pin, minPulse, maxPulse);
+          setPinModeCallback(pin, PIN_MODE_SERVO);
+        }
+      }
+      break;
+    case SAMPLING_INTERVAL:
+      if (argc > 1) {
+        samplingInterval = argv[0] + (argv[1] << 7);
+        if (samplingInterval < MINIMUM_SAMPLING_INTERVAL) {
+          samplingInterval = MINIMUM_SAMPLING_INTERVAL;
+        }
+      } else {
+        //Firmata.sendString("Not enough data");
+      }
+      break;
+    case EXTENDED_ANALOG:
+      if (argc > 1) {
+        int val = argv[1];
+        if (argc > 2) val |= (argv[2] << 7);
+        if (argc > 3) val |= (argv[3] << 14);
+        analogWriteCallback(argv[0], val);
+      }
+      break;
+    case CAPABILITY_QUERY:
+      Firmata.write(START_SYSEX);
+      Firmata.write(CAPABILITY_RESPONSE);
+      for (byte pin = 0; pin < TOTAL_PINS; pin++) {
+        if (IS_PIN_DIGITAL(pin)) {
+          Firmata.write((byte)INPUT);
+          Firmata.write(1);
+          Firmata.write((byte)PIN_MODE_PULLUP);
+          Firmata.write(1);
+          Firmata.write((byte)OUTPUT);
+          Firmata.write(1);
+        }
+        if (IS_PIN_ANALOG(pin)) {
+          Firmata.write(PIN_MODE_ANALOG);
+          Firmata.write(10); // 10 = 10-bit resolution
+        }
+        if (IS_PIN_PWM(pin)) {
+          Firmata.write(PIN_MODE_PWM);
+          Firmata.write(8); // 8 = 8-bit resolution
+        }
+        if (IS_PIN_DIGITAL(pin)) {
+          Firmata.write(PIN_MODE_SERVO);
+          Firmata.write(14);
+        }
+        if (IS_PIN_I2C(pin)) {
+          Firmata.write(PIN_MODE_I2C);
+          Firmata.write(1);  // TODO: could assign a number to map to SCL or SDA
+        }
+        Firmata.write(127);
+      }
+      Firmata.write(END_SYSEX);
+      break;
+    case PIN_STATE_QUERY:
+      if (argc > 0) {
+        byte pin = argv[0];
+        Firmata.write(START_SYSEX);
+        Firmata.write(PIN_STATE_RESPONSE);
+        Firmata.write(pin);
+        if (pin < TOTAL_PINS) {
+          Firmata.write((byte)pinConfig[pin]);
+          Firmata.write((byte)pinState[pin] & 0x7F);
+          if (pinState[pin] & 0xFF80) Firmata.write((byte)(pinState[pin] >> 7) & 0x7F);
+          if (pinState[pin] & 0xC000) Firmata.write((byte)(pinState[pin] >> 14) & 0x7F);
+        }
+        Firmata.write(END_SYSEX);
+      }
+      break;
+    case ANALOG_MAPPING_QUERY:
+      Firmata.write(START_SYSEX);
+      Firmata.write(ANALOG_MAPPING_RESPONSE);
+      for (byte pin = 0; pin < TOTAL_PINS; pin++) {
+        Firmata.write(IS_PIN_ANALOG(pin) ? PIN_TO_ANALOG(pin) : 127);
+      }
+      Firmata.write(END_SYSEX);
+      break;
+  }
+}
+
+void enableI2CPins()
+{
+  byte i;
+  // is there a faster way to do this? would probaby require importing
+  // Arduino.h to get SCL and SDA pins
+  for (i = 0; i < TOTAL_PINS; i++) {
+    if (IS_PIN_I2C(i)) {
+      // mark pins as i2c so they are ignore in non i2c data requests
+      setPinModeCallback(i, PIN_MODE_I2C);
+    }
+  }
+
+  isI2CEnabled = true;
+
+  Wire.begin();
+}
+
+/* disable the i2c pins so they can be used for other functions */
+void disableI2CPins() {
+  isI2CEnabled = false;
+  // disable read continuous mode for all devices
+  queryIndex = -1;
+}
+
+/*==============================================================================
+ * SETUP()
+ *============================================================================*/
+
+void systemResetCallback()
+{
+  isResetting = true;
+
+  // initialize a defalt state
+  // TODO: option to load config from EEPROM instead of default
+
+  if (isI2CEnabled) {
+    disableI2CPins();
+  }
+
+  for (byte i = 0; i < TOTAL_PORTS; i++) {
+    reportPINs[i] = false;    // by default, reporting off
+    portConfigInputs[i] = 0;  // until activated
+    previousPINs[i] = 0;
+  }
+
+  for (byte i = 0; i < TOTAL_PINS; i++) {
+    // pins with analog capability default to analog input
+    // otherwise, pins default to digital output
+    if (IS_PIN_ANALOG(i)) {
+      // turns off pullup, configures everything
+      setPinModeCallback(i, PIN_MODE_ANALOG);
+    } else if (IS_PIN_DIGITAL(i)) {
+      // sets the output to 0, configures portConfigInputs
+      setPinModeCallback(i, OUTPUT);
+    }
+
+    servoPinMap[i] = 255;
+  }
+  // by default, do not report any analog inputs
+  analogInputsToReport = 0;
+
+  detachedServoCount = 0;
+  servoCount = 0;
+
+  /* send digital inputs to set the initial state on the host computer,
+   * since once in the loop(), this firmware will only send on change */
+  /*
+  TODO: this can never execute, since no pins default to digital input
+        but it will be needed when/if we support EEPROM stored config
+  for (byte i=0; i < TOTAL_PORTS; i++) {
+    outputPort(i, readPort(i, portConfigInputs[i]), true);
+  }
+  */
+  isResetting = false;
+}
+
+void setup()
+{
+  DEBUG_BEGIN(9600);
+
+#ifdef _YUN_CLIENT_H_
+  Bridge.begin();
+#else
+#ifdef local_ip
+  Ethernet.begin((uint8_t *)mac, local_ip); //start ethernet
+#else
+  Ethernet.begin((uint8_t *)mac);           //start ethernet using dhcp
+#endif
+#endif
+
+  DEBUG_PRINTLN("connecting...");
+
+  Firmata.setFirmwareVersion(FIRMATA_FIRMWARE_MAJOR_VERSION, FIRMATA_FIRMWARE_MINOR_VERSION);
+
+  Firmata.attach(ANALOG_MESSAGE, analogWriteCallback);
+  Firmata.attach(DIGITAL_MESSAGE, digitalWriteCallback);
+  Firmata.attach(REPORT_ANALOG, reportAnalogCallback);
+  Firmata.attach(REPORT_DIGITAL, reportDigitalCallback);
+  Firmata.attach(SET_PIN_MODE, setPinModeCallback);
+  Firmata.attach(SET_DIGITAL_PIN_VALUE, setPinValueCallback);
+  Firmata.attach(START_SYSEX, sysexCallback);
+  Firmata.attach(SYSTEM_RESET, systemResetCallback);
+
+  // StandardFirmataEthernet communicates with Ethernet shields over SPI. Therefor all
+  // SPI pins must be set to IGNORE. Otherwise Firmata would break SPI communication.
+  // add Pin 10 and configure pin 53 as output if using a MEGA with an Ethernet shield.
+
+  // ignore SPI and pin 4 that is SS for SD-Card on Ethernet-shield
+  for (byte i = 0; i < TOTAL_PINS; i++) {
+    if (IS_PIN_SPI(i)
+        || 4 == i  // SD-Card on Ethernet-shiedl uses pin 4 for SS
+        || 10 == i // Ethernet-shield uses pin 10 for SS
+#if defined(__AVR_ATmega32U4__)
+        || 24 == i // On Leonardo, pin 24 maps to D4 and pin 28 maps to D10
+        || 28 == i
+#endif
+       ) {
+      pinConfig[i] = PIN_MODE_IGNORE;
+    }
+  }
+
+  // Arduino Ethernet, Arduino EthernetShield and Arduino Yun all have SD SS wired to D4
+  pinMode(PIN_TO_DIGITAL(4), OUTPUT);    // switch off SD card bypassing Firmata
+  digitalWrite(PIN_TO_DIGITAL(4), HIGH); // SS is active low;
+
+#if defined(__AVR_ATmega1280__) || defined(__AVR_ATmega2560__)
+  pinMode(PIN_TO_DIGITAL(53), OUTPUT); // configure hardware SS as output on MEGA
+#endif
+
+  // start up Network Firmata:
+  Firmata.begin(stream);
+  systemResetCallback();  // reset to default config
+}
+
+/*==============================================================================
+ * LOOP()
+ *============================================================================*/
+void loop()
+{
+  byte pin, analogPin;
+
+  /* DIGITALREAD - as fast as possible, check for changes and output them to the
+   * Stream buffer using Stream.write()  */
+  checkDigitalInputs();
+
+  /* STREAMREAD - processing incoming messagse as soon as possible, while still
+   * checking digital inputs.  */
+  while (Firmata.available())
+    Firmata.processInput();
+
+  // TODO - ensure that Stream buffer doesn't go over 60 bytes
+
+  currentMillis = millis();
+  if (currentMillis - previousMillis > samplingInterval) {
+    previousMillis += samplingInterval;
+    /* ANALOGREAD - do all analogReads() at the configured sampling interval */
+    for (pin = 0; pin < TOTAL_PINS; pin++) {
+      if (IS_PIN_ANALOG(pin) && pinConfig[pin] == PIN_MODE_ANALOG) {
+        analogPin = PIN_TO_ANALOG(pin);
+        if (analogInputsToReport & (1 << analogPin)) {
+          Firmata.sendAnalog(analogPin, analogRead(analogPin));
+        }
+      }
+    }
+    // report i2c data for all device with read continuous mode enabled
+    if (queryIndex > -1) {
+      for (byte i = 0; i < queryIndex + 1; i++) {
+        readAndReportData(query[i].addr, query[i].reg, query[i].bytes, query[i].stopTX);
+      }
+    }
+  }
+
+#if !defined local_ip && !defined _YUN_CLIENT_H_
+  if (Ethernet.maintain())
+  {
+    stream.maintain(Ethernet.localIP());
+  }
+#endif
+
+}

libraries/Firmata/examples/StandardFirmataEthernetPlus/LICENSE.txt

@@ -0,0 +1,458 @@
+
+		  GNU LESSER GENERAL PUBLIC LICENSE
+		       Version 2.1, February 1999
+
+ Copyright (C) 1991, 1999 Free Software Foundation, Inc.
+ 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+ Everyone is permitted to copy and distribute verbatim copies
+ of this license document, but changing it is not allowed.
+
+[This is the first released version of the Lesser GPL.  It also counts
+ as the successor of the GNU Library Public License, version 2, hence
+ the version number 2.1.]
+
+			    Preamble
+
+  The licenses for most software are designed to take away your
+freedom to share and change it.  By contrast, the GNU General Public
+Licenses are intended to guarantee your freedom to share and change
+free software--to make sure the software is free for all its users.
+
+  This license, the Lesser General Public License, applies to some
+specially designated software packages--typically libraries--of the
+Free Software Foundation and other authors who decide to use it.  You
+can use it too, but we suggest you first think carefully about whether
+this license or the ordinary General Public License is the better
+strategy to use in any particular case, based on the explanations below.
+
+  When we speak of free software, we are referring to freedom of use,
+not price.  Our General Public Licenses are designed to make sure that
+you have the freedom to distribute copies of free software (and charge
+for this service if you wish); that you receive source code or can get
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+it in new free programs; and that you are informed that you can do
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+
+  To protect your rights, we need to make restrictions that forbid
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+
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+it.  And you must show them these terms so they know their rights.
+
+  We protect your rights with a two-step method: (1) we copyright the
+library, and (2) we offer you this license, which gives you legal
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+
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+
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+General Public License, applies to certain designated libraries, and
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+
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+
+		  GNU LESSER GENERAL PUBLIC LICENSE
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libraries/Firmata/examples/StandardFirmataPlus/LICENSE.txt

@@ -0,0 +1,458 @@
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libraries/Firmata/extras/LICENSE.txt

@@ -0,0 +1,458 @@
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+AND/OR REDISTRIBUTE THE LIBRARY AS PERMITTED ABOVE, BE LIABLE TO YOU
+FOR DAMAGES, INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR
+CONSEQUENTIAL DAMAGES ARISING OUT OF THE USE OR INABILITY TO USE THE
+LIBRARY (INCLUDING BUT NOT LIMITED TO LOSS OF DATA OR DATA BEING
+RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD PARTIES OR A
+FAILURE OF THE LIBRARY TO OPERATE WITH ANY OTHER SOFTWARE), EVEN IF
+SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH
+DAMAGES.
+

libraries/Firmata/extras/revisions.txt

@@ -0,0 +1,188 @@
+FIRMATA 2.5.1 - Dec 26, 2015
+
+[core library]
+* Added support for Arduino 101
+* Make VERSION_BLINK_PIN optional
+* Separate protocol version from firmware version.
+  Use FIRMATA_PROTOCOL_VERSION_[MAJOR/MINOR/BUGFIX] for protocol and use
+  FIRMATA_FIRMWARE_VERSION_[MAJOR/MINOR/BUGFIX] for firmware (library version).
+
+[StandardFirmata & variants]
+* Added ability to auto-restart I2C transmission by setting bit 6 of byte 3
+  of the I2C_REQUEST message.
+
+FIRMATA 2.5.0 - Nov 7, 2015
+
+[core library]
+* Added Serial feature for interfacing with serial devices via hardware
+  or software serial. See github.com/firmata/protocol/serial.md for details
+* Added ability to set the value of a pin by sending a single value instead
+  of a port value. See 'set digital pin value' in github.com/firmata/protocol/protocol.md
+  for details
+* Added support for Arduino Zero board
+* Added support for Teensy LC board (copied from Teensy Firmata lib)
+* Added support for Pinoccio Scout board (Pawel Szymczykowski)
+* Lowered minimun sampling interval from 10 to 1 millisecond
+* Added new pin mode (PIN_MODE_PULLUP) for setting the INPUT_PULLUP pin mode
+* Changed pin mode defines to safer names (old names still included but
+  deprecated) - see Firmata.h
+
+[StandardFirmata & variants]
+* Created new StandardFirmataPlus that implements the Serial feature
+  Note: The new Serial features is only implemented in the "Plus" versions of
+  StandardFirmata.
+* Created new StandardFirmataEthernetPlus that implements the Serial feature
+* Fixed issue where StandardFirmata was not compiling for Intel Galileo boards
+* Moved StandardFirmataYun to its own repo (github.com/firmata/StandardFirmataYun)
+
+FIRMATA 2.4.4 - Aug 9, 2015
+
+[core library]
+* Added support for chipKIT boards (Brian Schmalz, Rick Anderson and Keith Vogel)
+* Added support for ATmega328 boards (previously only ATmega328p was supported)
+
+[StandardFirmata]
+* Added StandardFirmataChipKIT for ChipKIT boards (Brian Schmalz, Rick Anderson and Keith Vogel)
+* Ensure Serial is ready on Leonardo and other ATMega32u4-based boards
+
+FIRMATA 2.4.3 - Apr 11, 2015
+
+[core library]
+* Added debug macros (utility/firmataDebug.h)
+* Added Norbert Truchsess' EthernetClientStream lib from the configurable branch
+
+[examples]
+* Added StandardFirmataEthernet to enable Firmata over Ethernet
+* Minor updates to StandardFirmata and StandardFirmataYun
+
+FIRMATA 2.4.2 - Mar 16, 2015
+
+[core library]
+* Add support for Teesy 3.1 (Olivier Louvignes)
+
+FIRMATA 2.4.1 - Feb 7, 2015
+
+[core library]
+* Fixed off-by-one bug in setFirmwareNameAndVersion (Brian Schmalz)
+
+[StandardFirmata]
+* Prevent analog values from being reported during system reset
+
+FIRMATA 2.4.0 - Dec 21, 2014
+
+Changes from 2.3.6 to 2.4 that may impact existing Firmata client implementations:
+
+* When sending a string from the client application to the board (STRING_DATA) a
+static buffer is now used for the incoming string in place of a dynamically allocated
+block of memory (see Firmata.cpp lines 181 - 205). In Firmata 2.3.6 and older,
+the dynamically allocated block was never freed, causing a memory leak. If your
+client library had freed this memory in the string callback method, that code
+will break in Firmata 2.4. If the string data needs to persist beyond the string
+callback, it should be copied within the string callback.
+
+* As of Firmata 2.4, when digital port reporting or analog pin reporting is enabled,
+the value of the port (digital) or pin (analog) is immediately sent back to the client
+application. This will likely not have a negative impact on existing client
+implementations, but may be unexpected. This feature was added to better support
+non-serial streams (such as Ethernet, Wi-Fi, Bluetooth, etc) that may lose
+connectivity and need a quick way to get the current state of the pins upon
+reestablishing a connection.
+
+[core library]
+* Changed sendValueAsTwo7bitBytes, startSysex and endSysex from private to
+  public methods.
+* Added Intel Galileo to Boards.h
+* Renamed FirmataSerial to FirmataStream
+* Updated to latest Arduino library format
+* writePort function in Boards.h now returns 1 (to suppress compiler warning)
+* Updated syntax highlighting (keywords.txt)
+* Fixed IS_PIN_SPI ifndef condition in boards.h
+* Added constants to Firmata.h to reserve configurable firmata features
+* Fixed issue where firmwareName was not reported correctly in Windows
+* Ensure incoming String via STRING_DATA command is null-terminated
+* Fixed memory leak when receiving String via STRING_DATA command
+  (note this change may break existing code if you were manually deallocating
+  the incoming string in your string callback function. See code for details)
+* Added ability for user to specify a filename when calling setFirmwareNameAndVersion
+* Increased input data buffer size from 32 to 64 bytes
+
+[StandardFirmata]
+* Updated I2C_READ_CONTINUOUSLY to work with or without slaveRegister (Rick Waldron)
+* Added Yun variant of StandardFirmata
+* When a digital port is enabled, its value is now immediately sent to the client
+* When an analog pin is enabled, its value is now immediately sent to the client
+* Changed the way servo pins are mapped to enable use of servos on
+  a wider range of pins, including analog pins.
+* Fixed management of unexpected sized I2C replies (Nahuel Greco)
+* Fixed a bug when removing a monitored device with I2C_STOP_Reading (Nahuel Greco)
+* Fixed conditional expression in I2C_STOP_READING case
+* Changed samplingInterval from type int to type unsigned int
+* Shortened error message strings to save a few bytes
+
+[examples]
+* Updated FirmataServo example to use new pin mapping technique
+* Removed makefiles from examples (because they were not being updated)
+* Updated all examples to set current firmware version
+
+FIRMATA 2.3.6 - Jun 18, 2013 (Version included with Arduino core libraries)
+
+[core library]
+* Fixed bug introduced in 2.3.5 that broke ability to use Ethernet.
+
+FIRMATA 2.3.5 - May 21, 2013
+
+[core library]
+* Added Arduino Due to Boards.h
+* Added Teensy 3.0 to Boards.h
+* Updated unit tests to use ArduinoUnit v2.0
+* Renamed pin13strobe to strobeBlinkPin
+* Removed blinkVersion method from begin method for non-serial streams
+* Fixed memory leak in setting firmware version (Matthew Murdoch)
+* Added unit tests for a few core functions (Matthew Murdoch)
+* Added IS_PIN_SPI macro to all board definitions in Board.h (Norbert Truchsess)
+
+FIRMATA 2.3.4 - Feb 11, 2013
+
+[core library]
+* Fixed Stream implementation so Firmata can be used with Streams other than
+  Serial (Norbert Truchsess)
+
+FIRMATA 2.3.3 - Oct 6, 2012
+
+[core library]
+* Added write method to expose FirmataSerial.write
+* Added Arduino Leonardo to Boards.h
+
+[StandardFirmata]
+* Changed all instances of Serial.write to Firmata.write
+* Fixed delayMicroseconds(0) bug in readAndReportData
+
+FIRMATA 2.3.0 - 2.3.2
+
+* Removed angle from servo config
+* Changed file extensions from .pde to .ino
+* Added MEGA2560 to Boards.h
+* Added I2C pins to Boards.h
+* Modified examples to be compatible with Arduino 0022 and 1.0 or greater
+* Removed I2CFirmata example
+* Changes to StandardFirmata
+  * Added I2C support
+  * Added system reset message to reset all pins to default config on sysex reset
+
+FIRMATA 2.2 (changes prior to Firmata 2.3.0 were not well documented)
+
+* changes undocumented
+
+FIRMATA 2.1
+
+* added support for changing the sampling interval
+* added Servo support
+
+FIRMATA 2.0
+
+* changed to 8-bit port-based digital messages to mirror ports from previous 14-bit ports modeled after the standard Arduino board.
+* switched order of version message so major version is reported first
+
+FIRMATA 1.0
+
+* switched to MIDI-compatible packet format (though the message interpretation differs)

libraries/Firmata/keywords.txt

@@ -0,0 +1,83 @@
+#######################################
+# Syntax Coloring Map For Firmata
+#######################################
+
+#######################################
+# Datatypes (KEYWORD1)
+#######################################
+
+Firmata				KEYWORD1	Firmata
+callbackFunction		KEYWORD1	callbackFunction
+systemResetCallbackFunction	KEYWORD1	systemResetCallbackFunction
+stringCallbackFunction		KEYWORD1	stringCallbackFunction
+sysexCallbackFunction		KEYWORD1	sysexCallbackFunction
+
+#######################################
+# Methods and Functions (KEYWORD2)
+#######################################
+
+begin				KEYWORD2
+printVersion			KEYWORD2
+blinkVersion			KEYWORD2
+printFirmwareVersion		KEYWORD2
+setFirmwareVersion		KEYWORD2
+setFirmwareNameAndVersion	KEYWORD2
+available			KEYWORD2
+processInput			KEYWORD2
+sendAnalog			KEYWORD2
+sendDigital			KEYWORD2
+sendDigitalPort			KEYWORD2
+sendString			KEYWORD2
+sendSysex			KEYWORD2
+attach				KEYWORD2
+detach				KEYWORD2
+write				KEYWORD2
+sendValueAsTwo7bitBytes		KEYWORD2
+startSysex			KEYWORD2
+endSysex			KEYWORD2
+writePort			KEYWORD2
+readPort			KEYWORD2
+
+
+#######################################
+# Constants (LITERAL1)
+#######################################
+
+FIRMATA_MAJOR_VERSION	LITERAL1
+FIRMATA_MINOR_VERSION	LITERAL1
+FIRMATA_BUGFIX_VERSION	LITERAL1
+
+MAX_DATA_BYTES		LITERAL1
+
+DIGITAL_MESSAGE		LITERAL1
+ANALOG_MESSAGE		LITERAL1
+REPORT_ANALOG		LITERAL1
+REPORT_DIGITAL		LITERAL1
+REPORT_VERSION		LITERAL1
+SET_PIN_MODE		LITERAL1
+SET_DIGITAL_PIN_VALUE	LITERAL1
+SYSTEM_RESET		LITERAL1
+START_SYSEX		LITERAL1
+END_SYSEX		LITERAL1
+REPORT_FIRMWARE		LITERAL1
+STRING_DATA		LITERAL1
+
+PIN_MODE_ANALOG		LITERAL1
+PIN_MODE_PWM		LITERAL1
+PIN_MODE_SERVO		LITERAL1
+PIN_MODE_SHIFT		LITERAL1
+PIN_MODE_I2C		LITERAL1
+PIN_MODE_ONEWIRE	LITERAL1
+PIN_MODE_STEPPER	LITERAL1
+PIN_MODE_ENCODER	LITERAL1
+PIN_MODE_SERIAL		LITERAL1
+PIN_MODE_PULLUP		LITERAL1
+PIN_MODE_IGNORE		LITERAL1
+
+TOTAL_PINS		LITERAL1
+TOTAL_ANALOG_PINS	LITERAL1
+TOTAL_DIGITAL_PINS	LITERAL1
+TOTAL_PIN_MODES		LITERAL1
+TOTAL_PORTS		LITERAL1
+ANALOG_PORT		LITERAL1
+MAX_SERVOS		LITERAL1

libraries/Firmata/library.properties

@@ -0,0 +1,9 @@
+name=Firmata
+version=2.5.1
+author=Firmata Developers
+maintainer=https://github.com/firmata/arduino
+sentence=Enables the communication with computer apps using a standard serial protocol. For all Arduino boards.
+paragraph=The Firmata library implements the Firmata protocol for communicating with software on the host computer. This allows you to write custom firmware without having to create your own protocol and objects for the programming environment that you are using.
+category=Device Control
+url=https://github.com/firmata/arduino
+architectures=*

libraries/Firmata/readme.md

@@ -0,0 +1,170 @@
+#Firmata
+
+[![Gitter](https://badges.gitter.im/Join Chat.svg)](https://gitter.im/firmata/arduino?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge)
+
+Firmata is a protocol for communicating with microcontrollers from software on a host computer. The [protocol](https://github.com/firmata/protocol) can be implemented in firmware on any microcontroller architecture as well as software on any host computer software package. The Arduino repository described here is a Firmata library for Arduino and Arduino-compatible devices. If you would like to contribute to Firmata, please see the [Contributing](#contributing) section below.
+
+##Usage
+
+There are two main models of usage of Firmata. In one model, the author of the Arduino sketch uses the various methods provided by the Firmata library to selectively send and receive data between the Arduino device and the software running on the host computer. For example, a user can send analog data to the host using ``` Firmata.sendAnalog(analogPin, analogRead(analogPin)) ``` or send data packed in a string using ``` Firmata.sendString(stringToSend) ```. See File -> Examples -> Firmata -> AnalogFirmata & EchoString respectively for examples.
+
+The second and more common model is to load a general purpose sketch called StandardFirmata (or one of the variants such as StandardFirmataPlus or StandardFirmataEthernet depending on your needs) on the Arduino board and then use the host computer exclusively to interact with the Arduino board. StandardFirmata is located in the Arduino IDE in File -> Examples -> Firmata.
+
+##Firmata Client Libraries
+Most of the time you will be interacting with Arduino with a client library on the host computers. Several Firmata client libraries have been implemented in a variety of popular programming languages:
+
+* processing
+  * [https://github.com/firmata/processing]
+  * [http://funnel.cc]
+* python
+  * [https://github.com/MrYsLab/pymata-aio]
+  * [https://github.com/MrYsLab/PyMata]
+  * [https://github.com/tino/pyFirmata]
+  * [https://github.com/lupeke/python-firmata]
+  * [https://github.com/firmata/pyduino]
+* perl
+  * [https://github.com/ntruchsess/perl-firmata]
+  * [https://github.com/rcaputo/rx-firmata]
+* ruby
+  * [https://github.com/hardbap/firmata]
+  * [https://github.com/PlasticLizard/rufinol]
+  * [http://funnel.cc]
+* clojure
+  * [https://github.com/nakkaya/clodiuno]
+  * [https://github.com/peterschwarz/clj-firmata]
+* javascript
+  * [https://github.com/jgautier/firmata]
+  * [https://github.com/rwldrn/johnny-five]
+  * [http://breakoutjs.com]
+* java
+  * [https://github.com/kurbatov/firmata4j]
+  * [https://github.com/4ntoine/Firmata]
+* .NET
+  * [https://github.com/SolidSoils/Arduino]
+  * [http://www.imagitronics.org/projects/firmatanet/]
+* Flash/AS3
+  * [http://funnel.cc]
+  * [http://code.google.com/p/as3glue/]
+* PHP
+  * [https://bitbucket.org/ThomasWeinert/carica-firmata]
+  * [https://github.com/oasynnoum/phpmake_firmata]
+* Haskell
+  * [http://hackage.haskell.org/package/hArduino]
+* iOS
+  * [https://github.com/jacobrosenthal/iosfirmata]
+* Dart
+  * [https://github.com/nfrancois/firmata]
+* Max/MSP
+  * [http://www.maxuino.org/]
+
+Note: The above libraries may support various versions of the Firmata protocol and therefore may not support all features of the latest Firmata spec nor all Arduino and Arduino-compatible boards. Refer to the respective projects for details.
+
+##Updating Firmata in the Arduino IDE - Arduino 1.6.4 and higher
+
+If you want to update to the latest stable version:
+
+1. Open the Arduino IDE and navigate to: `Sketch > Include Library > Manage Libraries`
+2. Filter by "Firmata" and click on the "Firmata by Firmata Developers" item in the list of results.
+3. Click the `Select version` dropdown and select the most recent version (note you can also install previous versions)
+4. Click `Install`.
+
+###Cloning Firmata
+
+If you are contributing to Firmata or otherwise need a version newer than the latest tagged release, you can clone Firmata directly to your Arduino/libraries/ directory (where 3rd party libraries are installed). This only works for Arduino 1.6.4 and higher, for older versions you need to clone into the Arduino application directory (see section below titled "Using the Source code rather than release archive"). Be sure to change the name to Firmata as follows:
+
+```bash
+$ git clone git@github.com:firmata/arduino.git ~/Documents/Arduino/libraries/Firmata
+```
+
+*Update path above if you're using Windows or Linux or changed the default Arduino directory on OS X*
+
+
+##Updating Firmata in the Arduino IDE - older versions (<= 1.6.3 or 1.0.x)
+
+Download the latest [release](https://github.com/firmata/arduino/releases/tag/2.5.1) (for Arduino 1.0.x or Arduino 1.5.6 or higher) and replace the existing Firmata folder in your Arduino application. See the instructions below for your platform.
+
+*Note that Arduino 1.5.0 - 1.5.5 are not supported. Please use Arduino 1.5.6 or higher (or Arduino 1.0.5 or 1.0.6).*
+
+###Mac OSX:
+
+The Firmata library is contained within the Arduino package.
+
+1. Navigate to the Arduino application
+2. Right click on the application icon and select `Show Package Contents`
+3. Navigate to: `/Contents/Resources/Java/libraries/` and replace the existing
+`Firmata` folder with latest [Firmata release](https://github.com/firmata/arduino/releases/tag/2.5.1) (note there is a different download
+for Arduino 1.0.x vs 1.6.x)
+4. Restart the Arduino application and the latest version of Firmata will be available.
+
+*If you are using the Java 7 version of Arduino 1.5.7 or higher, the file path
+will differ slightly: `Contents/Java/libraries/Firmata` (no Resources directory).*
+
+###Windows:
+
+1. Navigate to `c:/Program\ Files/arduino-1.x/libraries/` and replace the existing
+`Firmata` folder with the latest [Firmata release](https://github.com/firmata/arduino/releases/tag/2.5.1) (note there is a different download
+for Arduino 1.0.x vs 1.6.x).
+2. Restart the Arduino application and the latest version of Firmata will be available.
+
+*Update the path and Arduino version as necessary*
+
+###Linux:
+
+1. Navigate to `~/arduino-1.x/libraries/` and replace the existing
+`Firmata` folder with the latest [Firmata release](https://github.com/firmata/arduino/releases/tag/2.5.1) (note there is a different download
+for Arduino 1.0.x vs 1.6.x).
+2. Restart the Arduino application and the latest version of Firmata will be available.
+
+*Update the path and Arduino version as necessary*
+
+###Using the Source code rather than release archive (only for versions older than Arduino 1.6.3)
+
+*It is recommended you update to Arduino 1.6.4 or higher if possible, that way you can clone directly into the external Arduino/libraries/ directory which persists between Arduino application updates. Otherwise you will need to move your clone each time you update to a newer version of the Arduino IDE.*
+
+If you're stuck with an older version of the IDE, then follow these keep reading otherwise jump up to the "Cloning Firmata section above".
+
+Clone this repo directly into the core Arduino application libraries directory. If you are using
+Arduino 1.5.x or <= 1.6.3, the repo directory structure will not match the Arduino
+library format, however it should still compile as long as you are using Arduino 1.5.7
+or higher.
+
+You will first need to remove the existing Firmata library, then clone firmata/arduino
+into an empty Firmata directory:
+
+```bash
+$ rm -r /Applications/Arduino.app/Contents/Resources/Java/libraries/Firmata
+$ git clone git@github.com:firmata/arduino.git /Applications/Arduino.app/Contents/Resources/Java/libraries/Firmata
+```
+
+*Update paths if you're using Windows or Linux*
+
+To generate properly formatted versions of Firmata (for Arduino 1.0.x and Arduino 1.6.x), run the
+`release.sh` script.
+
+
+<a name="contributing" />
+##Contributing
+
+If you discover a bug or would like to propose a new feature, please open a new [issue](https://github.com/firmata/arduino/issues?sort=created&state=open). Due to the limited memory of standard Arduino boards we cannot add every requested feature to StandardFirmata. Requests to add new features to StandardFirmata will be evaluated by the Firmata developers. However it is still possible to add new features to other Firmata implementations (Firmata is a protocol whereas StandardFirmata is just one of many possible implementations).
+
+To contribute, fork this repository and create a new topic branch for the bug, feature or other existing issue you are addressing. Submit the pull request against the *master* branch.
+
+If you would like to contribute but don't have a specific bugfix or new feature to contribute, you can take on an existing issue, see issues labeled "pull-request-encouraged". Add a comment to the issue to express your intent to begin work and/or to get any additional information about the issue.
+
+You must thoroughly test your contributed code. In your pull request, describe tests performed to ensure that no existing code is broken and that any changes maintain backwards compatibility with the existing api. Test on multiple Arduino board variants if possible. We hope to enable some form of automated (or at least semi-automated) testing in the future, but for now any tests will need to be executed manually by the contributor and reviewers.
+
+Use [Artistic Style](http://astyle.sourceforge.net/) (astyle) to format your code. Set the following rules for the astyle formatter:
+
+```
+style = ""
+indent-spaces = 2
+indent-classes = true
+indent-switches = true
+indent-cases = true
+indent-col1-comments = true
+pad-oper = true
+pad-header = true
+keep-one-line-statements = true
+```
+
+If you happen to use Sublime Text, [this astyle plugin](https://github.com/timonwong/SublimeAStyleFormatter) is helpful. Set the above rules in the user settings file.

libraries/Firmata/release.sh

@@ -0,0 +1,35 @@
+#!/bin/sh
+
+# use this script to package Firmata for distribution
+
+# package for Arduino 1.0.x
+mkdir -p temp/Firmata
+cp -r examples temp/Firmata
+cp -r extras temp/Firmata
+cp -r utility temp/Firmata
+cp Boards.h temp/Firmata
+cp Firmata.cpp temp/Firmata
+cp Firmata.h temp/Firmata
+cp keywords.txt temp/Firmata
+cp readme.md temp/Firmata
+cd temp
+find . -name "*.DS_Store" -type f -delete
+zip -r Firmata.zip ./Firmata/
+cd ..
+mv ./temp/Firmata.zip Firmata-2.5.1.zip
+
+#package for Arduino 1.6.x
+cp library.properties temp/Firmata
+cd temp/Firmata
+mv readme.md ./extras/
+mkdir src
+mv Boards.h ./src/
+mv Firmata.cpp ./src/
+mv Firmata.h ./src/
+mv utility ./src/
+cd ..
+find . -name "*.DS_Store" -type f -delete
+zip -r Firmata.zip ./Firmata/
+cd ..
+mv ./temp/Firmata.zip Arduino-1.6.x-Firmata-2.5.1.zip
+rm -r ./temp

libraries/Firmata/test/firmata_test/firmata_test.ino

@@ -0,0 +1,136 @@
+/*
+ * To run this test suite, you must first install the ArduinoUnit library
+ * to your Arduino/libraries/ directory.
+ * You can get ArduinoUnit here: https://github.com/mmurdoch/arduinounit
+ * Download version 2.0 or greater or install it via the Arduino library manager.
+ */
+
+#include <ArduinoUnit.h>
+#include <Firmata.h>
+
+void setup()
+{
+  Serial.begin(9600);
+}
+
+void loop()
+{
+  Test::run();
+}
+
+test(beginPrintsVersion)
+{
+  FakeStream stream;
+
+  Firmata.begin(stream);
+
+  char expected[] = {
+    REPORT_VERSION,
+    FIRMATA_PROTOCOL_MAJOR_VERSION,
+    FIRMATA_PROTOCOL_MINOR_VERSION,
+    0
+  };
+  assertEqual(expected, stream.bytesWritten());
+}
+
+void processMessage(const byte *message, size_t length)
+{
+  FakeStream stream;
+  Firmata.begin(stream);
+
+  for (size_t i = 0; i < length; i++) {
+    stream.nextByte(message[i]);
+    Firmata.processInput();
+  }
+}
+
+byte _digitalPort;
+int _digitalPortValue;
+void writeToDigitalPort(byte port, int value)
+{
+  _digitalPort = port;
+  _digitalPortValue = value;
+}
+
+void setupDigitalPort()
+{
+  _digitalPort = 0;
+  _digitalPortValue = 0;
+}
+
+test(processWriteDigital_0)
+{
+  setupDigitalPort();
+  Firmata.attach(DIGITAL_MESSAGE, writeToDigitalPort);
+
+  byte message[] = { DIGITAL_MESSAGE, 0, 0 };
+  processMessage(message, 3);
+
+  assertEqual(0, _digitalPortValue);
+}
+
+test(processWriteDigital_127)
+{
+  setupDigitalPort();
+  Firmata.attach(DIGITAL_MESSAGE, writeToDigitalPort);
+
+  byte message[] = { DIGITAL_MESSAGE, 127, 0 };
+  processMessage(message, 3);
+
+  assertEqual(127, _digitalPortValue);
+}
+
+test(processWriteDigital_128)
+{
+  setupDigitalPort();
+  Firmata.attach(DIGITAL_MESSAGE, writeToDigitalPort);
+
+  byte message[] = { DIGITAL_MESSAGE, 0, 1 };
+  processMessage(message, 3);
+
+  assertEqual(128, _digitalPortValue);
+}
+
+test(processWriteLargestDigitalValue)
+{
+  setupDigitalPort();
+  Firmata.attach(DIGITAL_MESSAGE, writeToDigitalPort);
+
+  byte message[] = { DIGITAL_MESSAGE, 0x7F, 0x7F };
+  processMessage(message, 3);
+
+  // Maximum of 14 bits can be set (B0011111111111111)
+  assertEqual(0x3FFF, _digitalPortValue);
+}
+
+test(defaultDigitalWritePortIsZero)
+{
+  setupDigitalPort();
+  Firmata.attach(DIGITAL_MESSAGE, writeToDigitalPort);
+
+  byte message[] = { DIGITAL_MESSAGE, 0, 0 };
+  processMessage(message, 3);
+
+  assertEqual(0, _digitalPort);
+}
+
+test(specifiedDigitalWritePort)
+{
+  setupDigitalPort();
+  Firmata.attach(DIGITAL_MESSAGE, writeToDigitalPort);
+
+  byte message[] = { DIGITAL_MESSAGE + 1, 0, 0 };
+  processMessage(message, 3);
+
+  assertEqual(1, _digitalPort);
+}
+
+test(setFirmwareVersionDoesNotLeakMemory)
+{
+  Firmata.setFirmwareVersion(1, 0);
+  int initialMemory = freeMemory();
+
+  Firmata.setFirmwareVersion(1, 0);
+
+  assertEqual(0, initialMemory - freeMemory());
+}

libraries/Firmata/test/readme.md

@@ -0,0 +1,13 @@
+#Testing Firmata
+
+Tests tests are written using the [ArduinoUnit](https://github.com/mmurdoch/arduinounit) library (version 2.0).
+
+Follow the instructions in the [ArduinoUnit readme](https://github.com/mmurdoch/arduinounit/blob/master/readme.md) to install the library.
+
+Compile and upload the test sketch as you would any other sketch. Then open the
+Serial Monitor to view the test results.
+
+If you make changes to Firmata.cpp, run the tests in /test/ to ensure
+that your changes have not produced any unexpected errors.
+
+You should also perform manual tests against actual hardware.

libraries/Firmata/utility/EthernetClientStream.cpp

@@ -0,0 +1,112 @@
+/*
+  EthernetClientStream.cpp
+  An Arduino-Stream that wraps an instance of Client reconnecting to
+  the remote-ip in a transparent way. A disconnected client may be
+  recognized by the returnvalues -1 from calls to peek or read and
+  a 0 from calls to write.
+
+  Copyright (C) 2013 Norbert Truchsess. All rights reserved.
+
+  This library is free software; you can redistribute it and/or
+  modify it under the terms of the GNU Lesser General Public
+  License as published by the Free Software Foundation; either
+  version 2.1 of the License, or (at your option) any later version.
+
+  See file LICENSE.txt for further informations on licensing terms.
+
+  formatted using the GNU C formatting and indenting
+ */
+
+#include "EthernetClientStream.h"
+#include <Arduino.h>
+
+//#define SERIAL_DEBUG
+#include "firmataDebug.h"
+
+#define MILLIS_RECONNECT 5000
+
+EthernetClientStream::EthernetClientStream(Client &client, IPAddress localip, IPAddress ip, const char* host, uint16_t port)
+: client(client),
+  localip(localip),
+  ip(ip),
+  host(host),
+  port(port),
+  connected(false)
+{
+}
+
+int
+EthernetClientStream::available()
+{
+  return maintain() ? client.available() : 0;
+}
+
+int
+EthernetClientStream::read()
+{
+  return maintain() ? client.read() : -1;
+}
+
+int
+EthernetClientStream::peek()
+{
+  return maintain() ? client.peek() : -1;
+}
+
+void EthernetClientStream::flush()
+{
+  if (maintain())
+    client.flush();
+}
+
+size_t
+EthernetClientStream::write(uint8_t c)
+{
+  return maintain() ? client.write(c) : 0;
+}
+
+void
+EthernetClientStream::maintain(IPAddress localip)
+{
+// temporary hack to Firmata to compile for Intel Galileo
+// the issue is documented here: https://github.com/firmata/arduino/issues/218
+#if !defined(ARDUINO_LINUX)
+  if (this->localip!=localip)
+    {
+      this->localip = localip;
+      if (connected)
+        stop();
+    }
+#endif
+}
+
+void
+EthernetClientStream::stop()
+{
+  client.stop();
+  connected = false;
+  time_connect = millis();
+}
+
+bool
+EthernetClientStream::maintain()
+{
+  if (client && client.connected())
+    return true;
+
+  if (connected)
+    {
+      stop();
+    }
+  else if (millis()-time_connect >= MILLIS_RECONNECT)
+    {
+      connected = host ? client.connect(host,port) : client.connect(ip,port);
+      if (!connected) {
+        time_connect = millis();
+        DEBUG_PRINTLN("connection failed");
+      } else {
+        DEBUG_PRINTLN("connected");
+      }
+    }
+  return connected;
+}

libraries/Firmata/utility/EthernetClientStream.h

@@ -0,0 +1,52 @@
+/*
+  EthernetClientStream.h
+  An Arduino-Stream that wraps an instance of Client reconnecting to
+  the remote-ip in a transparent way. A disconnected client may be
+  recognized by the returnvalues -1 from calls to peek or read and
+  a 0 from calls to write.
+
+  Copyright (C) 2013 Norbert Truchsess. All rights reserved.
+
+  This library is free software; you can redistribute it and/or
+  modify it under the terms of the GNU Lesser General Public
+  License as published by the Free Software Foundation; either
+  version 2.1 of the License, or (at your option) any later version.
+
+  See file LICENSE.txt for further informations on licensing terms.
+
+  formatted using the GNU C formatting and indenting
+ */
+
+#ifndef ETHERNETCLIENTSTREAM_H
+#define ETHERNETCLIENTSTREAM_H
+
+#include <inttypes.h>
+#include <stdio.h>
+#include <Stream.h>
+#include <Client.h>
+#include <IPAddress.h>
+
+class EthernetClientStream : public Stream
+{
+public:
+  EthernetClientStream(Client &client, IPAddress localip, IPAddress ip, const char* host, uint16_t port);
+  int available();
+  int read();
+  int peek();
+  void flush();
+  size_t write(uint8_t);
+  void maintain(IPAddress localip);
+
+private:
+  Client &client;
+  IPAddress localip;
+  IPAddress ip;
+  const char* host;
+  uint16_t port;
+  bool connected;
+  uint32_t time_connect;
+  bool maintain();
+  void stop();
+};
+
+#endif

libraries/Firmata/utility/firmataDebug.h

@@ -0,0 +1,14 @@
+#ifndef FIRMATA_DEBUG_H
+#define FIRMATA_DEBUG_H
+
+#ifdef SERIAL_DEBUG
+  #define DEBUG_BEGIN(baud) Serial.begin(baud); while(!Serial) {;}
+  #define DEBUG_PRINTLN(x)  Serial.println (x)
+  #define DEBUG_PRINT(x)    Serial.print (x)
+#else
+  #define DEBUG_BEGIN(baud)
+  #define DEBUG_PRINTLN(x)
+  #define DEBUG_PRINT(x)
+#endif
+
+#endif /* FIRMATA_DEBUG_H */

libraries/Firmata/utility/serialUtils.h

@@ -0,0 +1,120 @@
+/*
+  serialUtils.h - Definitions and utility functions for the Serial feature.
+  Copyright (c) 2015 Jeff Hoefs.  All rights reserved.
+
+  This library is free software; you can redistribute it and/or
+  modify it under the terms of the GNU Lesser General Public
+  License as published by the Free Software Foundation; either
+  version 2.1 of the License, or (at your option) any later version.
+
+  See file LICENSE.txt for further informations on licensing terms.
+
+  Last updated by Jeff Hoefs: October 3rd, 2015
+*/
+
+#ifndef SERIAL_UTILS_H
+#define SERIAL_UTILS_H
+
+// Serial port Ids
+#define HW_SERIAL0                  0x00
+#define HW_SERIAL1                  0x01
+#define HW_SERIAL2                  0x02
+#define HW_SERIAL3                  0x03
+// extensible up to 0x07
+
+#define SW_SERIAL0                  0x08
+#define SW_SERIAL1                  0x09
+#define SW_SERIAL2                  0x0A
+#define SW_SERIAL3                  0x0B
+// extensible up to 0x0F
+
+#define SERIAL_PORT_ID_MASK         0x0F
+#define MAX_SERIAL_PORTS            8
+#define SERIAL_READ_ARR_LEN         12
+
+// map configuration query response resolution value to serial pin type
+#define RES_RX1                     0x02
+#define RES_TX1                     0x03
+#define RES_RX2                     0x04
+#define RES_TX2                     0x05
+#define RES_RX3                     0x06
+#define RES_TX3                     0x07
+
+// Serial command bytes
+#define SERIAL_CONFIG               0x10
+#define SERIAL_WRITE                0x20
+#define SERIAL_READ                 0x30
+#define SERIAL_REPLY                0x40
+#define SERIAL_CLOSE                0x50
+#define SERIAL_FLUSH                0x60
+#define SERIAL_LISTEN               0x70
+
+// Serial read modes
+#define SERIAL_READ_CONTINUOUSLY    0x00
+#define SERIAL_STOP_READING         0x01
+#define SERIAL_MODE_MASK            0xF0
+
+struct serial_pins {
+  uint8_t rx;
+  uint8_t tx;
+};
+
+/*
+ * Get the serial serial pin type (RX1, TX1, RX2, TX2, etc) for the specified pin.
+ */
+inline uint8_t getSerialPinType(uint8_t pin) {
+#if defined(PIN_SERIAL_RX)
+  // TODO when use of HW_SERIAL0 is enabled
+#endif
+#if defined(PIN_SERIAL1_RX)
+  if (pin == PIN_SERIAL1_RX) return RES_RX1;
+  if (pin == PIN_SERIAL1_TX) return RES_TX1;
+#endif
+#if defined(PIN_SERIAL2_RX)
+  if (pin == PIN_SERIAL2_RX) return RES_RX2;
+  if (pin == PIN_SERIAL2_TX) return RES_TX2;
+#endif
+#if defined(PIN_SERIAL3_RX)
+  if (pin == PIN_SERIAL3_RX) return RES_RX3;
+  if (pin == PIN_SERIAL3_TX) return RES_TX3;
+#endif
+  return 0;
+}
+
+/*
+ * Get the RX and TX pins numbers for the specified HW serial port.
+ */
+inline serial_pins getSerialPinNumbers(uint8_t portId) {
+  serial_pins pins;
+  switch (portId) {
+#if defined(PIN_SERIAL_RX)
+      // case HW_SERIAL0:
+      //   // TODO when use of HW_SERIAL0 is enabled
+      //   break;
+#endif
+#if defined(PIN_SERIAL1_RX)
+    case HW_SERIAL1:
+      pins.rx = PIN_SERIAL1_RX;
+      pins.tx = PIN_SERIAL1_TX;
+      break;
+#endif
+#if defined(PIN_SERIAL2_RX)
+    case HW_SERIAL2:
+      pins.rx = PIN_SERIAL2_RX;
+      pins.tx = PIN_SERIAL2_TX;
+      break;
+#endif
+#if defined(PIN_SERIAL3_RX)
+    case HW_SERIAL3:
+      pins.rx = PIN_SERIAL3_RX;
+      pins.tx = PIN_SERIAL3_TX;
+      break;
+#endif
+    default:
+      pins.rx = 0;
+      pins.tx = 0;
+  }
+  return pins;
+}
+
+#endif /* SERIAL_UTILS_H */

libraries/readme.txt

@@ -0,0 +1 @@
+Para más información de cómo instalar librerías, mire: http://www.arduino.cc/en/Guide/Libraries

sketch_feb12a.cpp/sketch_feb12a.cpp.ino

@@ -0,0 +1,16 @@
+int ledPin = 13;
+
+void setup() {
+  // put your setup code here, to run once:
+  //Serial.begin(9600);
+  pinMode(ledPin, OUTPUT);
+}
+
+void loop() {
+  // put your main code here, to run repeatedly:
+  //Serial.println("led 13!");
+  digitalWrite(ledPin, HIGH);
+  delay(100);
+  digitalWrite(ledPin, LOW);
+  delay(5000);
+}

sketch_feb13b_DHT11_temp_hum/sketch_feb13b_DHT11_temp_hum.ino

@@ -0,0 +1,44 @@
+#include <DHT.h>
+
+#define DHT_APin A0 // Pin Análogico al que he conectado el sensor
+#define DHT_Type DHT11 // mi sensor es el DHT11
+
+DHT dht(DHT_APin, DHT_Type);
+
+int ledPin = 13;
+
+void setup() { // put your setup code here, to run once:
+  Serial.begin(9600);
+  dht.begin();
+  pinMode(ledPin, OUTPUT);
+}
+
+void loop() { // put your main code here, to run repeatedly:
+  delay(60000); // 1 minuto
+
+  // Reading temperature or humidity takes about 250 milliseconds!
+  // Sensor readings may also be up to 2 seconds 'old' (its a very slow sensor)
+  float h = dht.readHumidity();
+  float t = dht.readTemperature(); // lectura en Celsius, readTemperature(true) para Fahrenheit
+
+  if (isnan(h) || isnan(t)) {
+    Serial.println("E"); // E = error, para el script en python que lee
+    return;
+  }
+
+  // Compute heat index in Celsius (isFahreheit = false)
+  float hic = dht.computeHeatIndex(t, h, false); // sensación térmica
+
+  // D = DHT, para el script en python que leerá esto
+  Serial.print("D h:");
+  Serial.print(h);
+  Serial.print(" t:");
+  Serial.print(t);
+  Serial.print(" i:");
+  Serial.print(hic);
+  Serial.println("");
+  
+  digitalWrite(ledPin, HIGH);
+  delay(100);
+  digitalWrite(ledPin, LOW);
+}