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

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);
+}
+