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

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;
+}
+