How to get RGB LED working on Puck.js

// led sample for Puck.js
var LED = [LED1,LED2,LED3]; // array of leds
var BTN = BTN1;             // name of button
var i = 0;
var count = LED.length;
setWatch(function (e) {
      if (e.state) {
        LED[i%count].set();
      } else {
        LED[i%count].reset();
        i++;
      }},
      BTN,
      { repeat:true, edge:'both',debounce : 20 }
);