johnny-five/eg/led-rainbow.js

The JavaScript Arduino Programming Framework.

var five = require("../lib/johnny-five.js");

five.Board().on("ready", function() {
  var rgb, rainbow, index;

  rgb = new five.Led.RGB([3, 5, 6]);
  rainbow = ["FF000", "FF7F00", "00FF00", "FFFF00", "0000FF", "4B0082", "8F00FF"];
  index = 0;

  setInterval(function() {
    if (index + 1 === rainbow.length) {
      index = 0;
    }
    rgb.color(rainbow[index++]);
  }, 500);
});