text: /**
   * this example comes from the Johnny-Five web site Hello World example
   * put here for learning purposes
   * 
   * http://johnny-five.io/examples/
   * see also https://github.com/rwaldron/johnny-five/blob/master/eg/led-blink.js
   * which is slightly different than the hello world example
   * 
   */
  
  var five = require("johnny-five");
  var board = new five.Board();
  
  board.on("ready", function() {
  
    // Create a standard `led` component instance
    var led = new five.Led(13);
  
    // "blink" the led in 500ms on-off phase periods
    led.blink(500);
  });