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47 lines
1.1 KiB
C++
47 lines
1.1 KiB
C++
/*
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* Firmata is a generic protocol for communicating with microcontrollers
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* from software on a host computer. It is intended to work with
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* any host computer software package.
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*
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* To download a host software package, please clink on the following link
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* to open the download page in your default browser.
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*
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* http://firmata.org/wiki/Download
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*/
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/* Supports as many analog inputs and analog PWM outputs as possible.
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*
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* This example code is in the public domain.
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*/
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#include <Firmata.h>
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byte analogPin = 0;
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void analogWriteCallback(byte pin, int value)
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{
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if (IS_PIN_PWM(pin)) {
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pinMode(PIN_TO_DIGITAL(pin), OUTPUT);
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analogWrite(PIN_TO_PWM(pin), value);
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}
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}
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void setup()
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{
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Firmata.setFirmwareVersion(0, 1);
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Firmata.attach(ANALOG_MESSAGE, analogWriteCallback);
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Firmata.begin(57600);
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}
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void loop()
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{
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while (Firmata.available()) {
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Firmata.processInput();
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}
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// do one analogRead per loop, so if PC is sending a lot of
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// analog write messages, we will only delay 1 analogRead
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Firmata.sendAnalog(analogPin, analogRead(analogPin));
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analogPin = analogPin + 1;
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if (analogPin >= TOTAL_ANALOG_PINS) analogPin = 0;
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}
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