firmata-electron/examples/reporting.js

A library to control an arduino running firmata

var Board = require("../lib/firmata").Board;
var a = 6;
var b = 7;

var board = new Board("/dev/cu.usbmodem1411");

board.on("ready", function() {
  console.log("Ready.");

  this.pinMode(a, this.MODES.PWM);
  this.pinMode(b, this.MODES.OUTPUT);

  var states = {
    5: 0,
    8: 0
  };

  Object.keys(states).forEach(function(pin) {
    pin = +pin;
    this.pinMode(pin, this.MODES.INPUT);
    this.digitalRead(pin, function(value) {
      console.log("pin: %d value: %d", pin, value);
      if (states[pin] !== value) {
        states[pin] = value;
        this.digitalWrite(b, value);
      }
    });
  }, this);

  // var analogs = [0, 1, 2, 3, 4, 5];
  var analogs = [3];

  analogs.forEach(function(pin) {
    pin = +pin;
    this.pinMode(pin, this.MODES.ANALOG);
    this.analogRead(pin, function(value) {
      this.analogWrite(a, value >> 2);
    });
  }, this);
});