Motion detector

gistfile1.js

var five = require("../lib/johnny-five.js"),
    board, sensor, red, green, blue, piezo;

board = new five.Board();

board.on("ready", function() {
  var status = new five.Led(13);
  status.on();

  red = new five.Led(8);
  green = new five.Led(9);
  blue = new five.Led(10);

  red.off();
  green.on();

  sensor = new five.Sensor({
    pin: 'A5',
    freq: 100
  });

  board.firmata.pinMode(3, board.firmata.MODES.PWM);

  sensor.on('change', function() {
    console.log('change', this.normalized);

    if (this.normalized > 50) {
      red.on();
      green.off();
      board.firmata.analogWrite(3, 956);
      setTimeout(function() {
        board.firmata.analogWrite(3, 0);
      }, 500);
    } else {
      green.on();
      red.off();
      board.firmata.analogWrite(3, 0);
    }
  })
});