Youtuber Visual Burrito writes:
After last year’s costume went absolutely nuts, I had to make a new one that was much, much better. The 2014 version is using digitally addressable LED strips hooked up to an Arduino microcontroller which I programmed (and still learning). It is responsive to sound and has 2 potentiometers and a button in the back of one of the ears for control and a microphone hidden in the front. It has 12 modes and 372 LEDs (124 chips with 3 each).