Basic Sphero connection demo using their JavaScript API

sphero.js

var sphero = require("sphero"),
    sprk = sphero("EA:FE:34:55:2A:E0"); // change BLE address accordingly

sprk.connect(function() {
  // roll Sphero in a random direction, changing direction every second
  setInterval(function() {
    var direction = Math.floor(Math.random() * 360);
    sprk.roll(150, direction);
  }, 1000);
});