Code for my light cube prototype. See http://youtube.com/watch?v=G3BYGcS8h2w&feature…

light_cube_proto.js

'use strict';

const five = require('johnny-five');
const board = new five.Board();
const hsv = require('hsv2rgb');

board.on('ready', () => {
  const led = new five.Led.RGB({
    pins: {
      red: 9,
      green: 10,
      blue: 11
    },
    isAnode: true
  });
  let hue = 0;
  let reverse = false;
  setInterval(() => {
    if (reverse) {
      hue--;
      if (hue === 0) {
        reverse = false;
      }
    } else {
      hue++;
      if (hue === 359) {
        reverse = true;
      }
    }
    const color = hsv(hue, 1, 1);
    led.color('#' + color.map((channel) => ('00' + channel.toString(16)).slice(-2)).join(''));
  }, 30)
});