node script for controlling leds on my raspberry pi

traffic-light-led

var gpio = require('gpio');

var green = gpio.export(4, {
  direction: 'out',
  interval: 200,
  ready: function() {
    console.log('green is ready');
  }
});

var yellow = gpio.export(17, {
  direction: 'out',
  interval: 200,
  ready: function() {
    console.log('yellow is ready');
  }
});

var red = gpio.export(22, {
  direction: 'out',
  interval: 200,
  ready: function() {
    console.log('red is ready');
  }
});

module.exports.green = green;
module.exports.yellow = yellow;
module.exports.red = red;