Firmata实例代码

#include <Firmata.h>

byte analogPin;

void analogWriteCallback(byte pin, int value)
{
pinMode(pin, OUTPUT);
analogWrite(pin, value);
}

void setup()
{
Firmata.setFirmwareVersion(FIRMATA_MAJOR_VERSION, FIRMATA_MINOR_VERSION);
Firmata.attach(ANALOG_MESSAGE, analogWriteCallback);
Firmata.begin();
}

void loop()
{
while (Firmata.available()) {
Firmata.processInput();
}
for (analogPin = 0; analogPin < TOTAL_ANALOG_PINS; analogPin++) {
Firmata.sendAnalog(analogPin, analogRead(analogPin));
}
}

analogWriteCallback(byte pin, int value); 关键代码 接受传进来的端口好以及数值 端口号0-13 值0-255 可通过processing端传值的大小变化改变灯光的强弱