| /* | |
| * Firmata is a generic protocol for communicating with microcontrollers | |
| * from software on a host computer. It is intended to work with | |
| * any host computer software package. | |
| * | |
| * To download a host software package, please click on the following link | |
| * to open the list of Firmata client libraries in your default browser. | |
| * | |
| * https://github.com/firmata/arduino#firmata-client-libraries | |
| */ | |
| /* Supports as many analog inputs and analog PWM outputs as possible. | |
| * | |
| * This example code is in the public domain. | |
| */ | |
| 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(FIRMATA_FIRMWARE_MAJOR_VERSION, FIRMATA_FIRMWARE_MINOR_VERSION); | |
| 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; | |
| } | |