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[136] | 1 | /*
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| 2 | * Firmata is a generic protocol for communicating with microcontrollers
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| 3 | * from software on a host computer. It is intended to work with
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| 4 | * any host computer software package.
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| 5 | *
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| 6 | * To download a host software package, please clink on the following link
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| 7 | * to open the download page in your default browser.
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| 8 | *
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| 9 | * http://firmata.org/wiki/Download
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| 10 | */
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| 11 |
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| 12 | /* Supports as many analog inputs and analog PWM outputs as possible.
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| 13 | *
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| 14 | * This example code is in the public domain.
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| 15 | */
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| 16 | #include <Firmata.h>
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| 17 |
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| 18 | byte analogPin = 0;
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| 19 |
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| 20 | void analogWriteCallback(byte pin, int value)
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| 21 | {
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| 22 | if (IS_PIN_PWM(pin)) {
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| 23 | pinMode(PIN_TO_DIGITAL(pin), OUTPUT);
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| 24 | analogWrite(PIN_TO_PWM(pin), value);
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| 25 | }
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| 26 | }
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| 27 |
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| 28 | void setup()
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| 29 | {
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[224] | 30 | Firmata.setFirmwareVersion(FIRMATA_FIRMWARE_MAJOR_VERSION, FIRMATA_FIRMWARE_MINOR_VERSION);
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[136] | 31 | Firmata.attach(ANALOG_MESSAGE, analogWriteCallback);
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| 32 | Firmata.begin(57600);
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| 33 | }
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| 34 |
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| 35 | void loop()
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| 36 | {
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| 37 | while (Firmata.available()) {
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| 38 | Firmata.processInput();
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| 39 | }
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| 40 | // do one analogRead per loop, so if PC is sending a lot of
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| 41 | // analog write messages, we will only delay 1 analogRead
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| 42 | Firmata.sendAnalog(analogPin, analogRead(analogPin));
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| 43 | analogPin = analogPin + 1;
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| 44 | if (analogPin >= TOTAL_ANALOG_PINS) analogPin = 0;
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| 45 | }
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| 46 |
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