Bat Signal Lamp Extension

This is a complement to http://www.thingiverse.com/thing:27121 Bat signal lamp. Uses 4 ws2812 LED. The back is mainly to make a neat cable support. The holder fits standard WS2812 breakout pcb found on ebay. Drill out 2mm holes and mount to the bat signal. Make a simple sketch on Arduino to cycle through the led:s and change colour. Since it is four leds it will be four shadows if all are lit.