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/* 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(0, 1);
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;
}
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