fade.js

// Generated by CoffeeScript 1.4.0
var LED_OFF, LED_ON, SIO, TTY, color, counter, fs, io, leds, serial, serialize, update, ___;

TTY = process.argv[2] || '/dev/ttyACM0';

SIO = (parseInt(process.argv[3])) || 4568;

LED_OFF = '255 255 255 255 255 255\n';

LED_ON = '0 0 0 0 0 0\n';

___ = function(x) {
  return console.log(x);
};

color = (require('onecolor'))('hsv(0,100%,100%)');

fs = require('fs');

counter = 0;

leds = [0, 0];

serial = fs.openSync(TTY, 'w');

___("opened " + TTY + " " + serial);

setTimeout((function() {
  var w;
  w = fs.writeSync(serial, LED_OFF);
  ___("off " + w);
  return setTimeout((function() {
    w = fs.writeSync(serial, LED_ON);
    return ___("on " + w);
  }), 1000);
}), 500);

serialize = function(hue) {
  var b, chan, g, r, _ref;
  _ref = (color.hue(hue)).rgb(), r = _ref._red, g = _ref._green, b = _ref._blue;
  return ((function() {
    var _i, _len, _ref1, _results;
    _ref1 = [r, g, b];
    _results = [];
    for (_i = 0, _len = _ref1.length; _i < _len; _i++) {
      chan = _ref1[_i];
      _results.push('' + (255 - Math.floor(chan * 255)));
    }
    return _results;
  })()).join(' ');
};

update = function(side, d) {
  var s, w;
  leds[side] = d;
  s = "" + (serialize(leds[0])) + " " + (serialize(leds[1])) + "\n";
  w = fs.writeSync(serial, s);
  return ___("written " + w);
};

io = (require('socket.io')).listen(SIO, {
  'log level': 1
});

io.sockets.on('connection', function(s) {
  s.on('left', function(d) {
    return update(0, d);
  });
  return s.on('right', function(d) {
    return update(1, d);
  });
});

___("opened socket.io " + SIO);