for (int pin = 0; pin < sizeof(analogChannel); pin++)

      analogChannel[pin] = 127;

// Enumerate analog channels:

for (int i =1; i < sysexBytesRead; i++)

      analogChannel[i ­ 1] = storedInputData[i];

// Set each analog output to reporting

for (int pin =0; pin < sizeof(analogChannel); pin++)

    { 

if (analogChannel[pin] != 127)

      { 

        Serial1.write(REPORT_ANALOG | analogChannel[pin]);

        Serial1.write(1);

      } 

    } 

break;

  } 

} 

// firmata_queryAnalogMapping()

// ­ Send the ANALOG_MAPPING_QUERY request message.

// ­ Called in init to keep track of which pins are analog ins

void firmata_queryAnalogMapping()

{ 

  Serial1.write(START_SYSEX);

  Serial1.write(ANALOG_MAPPING_QUERY);

  Serial1.write(END_SYSEX);

} 

// firmata_setDigitalInputs()

// ­ Set a value in the digitalInputData array to portData

void firmata_setDigitalInputs(int portNumber, int portData)

{ 

  digitalInputData[portNumber] = portData;

} 

// firmata_setAnalogInput

// ­ Set an analog pin value to [value].

void firmata_setAnalogInput(int pin, int value)

{ 

  analogInputData[pin] = value;

} 

void firmata_setVersion(int majorVersion, int minorVersion)

{ 

//! Todo

} 

After uploading that sketch to your Edison, your Arduino Block should begin

blinking the D13 pin. You can also open up the Serial Monitor to see what

values your Arduino Block is reading in on D4 and A0.

This serves as a simple Firmata client for the Edison, but it should be easily

expandable. Try using any of these functions (defined in lower portions of

the sketch) to add more features to your Edison Firmata Client:

setting the pin’s mode is critical. Firmata requires an extra bit of

This function will return a value between 0 and 1. That pin should be

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