index.js

var fs = require('fs');

if(!fs.existsSync('./config.js')) {
  console.log("Please configure config.js.example and copy it to config.js.");
  process.exit(1);
}

var github = require('octonode')
	, j5 = require('johnny-five')
  , config = require('./config');


var board = j5.Board();

//add your github token
var client = github.client(config.apiToken);

//enter your repository, it must be a repository where you have pull rights, and it needs to have CI incorporated.
var repo = client.repo(config.repo);

var red, green, blue;

var lights = function(status){

  if(status == 'success'){
    green.on();
    red.off();
    blue.off();
  } else if(status == 'pending') {
    red.off();
    green.off();
    blue.on();
  } else {
    red.on();
    green.off();
    blue.off();
  }

}

var getStatus = function() {
  repo.statuses('master', function(err, status, body){
    //do whatever you'd like with the most recent status!
    console.log(status[0].state);

    //change the color based on the last status
    lights(status[0].state);
 });
};


board.on('ready', function (){
  // Create three instances of LEDs
  red = new j5.Led({pin : 11});
  green = new j5.Led({pin : 10});
  blue = new j5.Led({pin: 9});

  if(config.ledType === "common-anode") {
    swapOffOn(red);
    swapOffOn(blue);
    swapOffOn(green);
  }

  setInterval(getStatus, 500);
});

function swapOffOn(led) {
  var tmp = led.off;
  led.off = led.on;
  led.on = tmp;
};