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

libraries/Firmata/test/firmata_test/firmata_test.ino

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+/*
+ * 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

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+#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.