ws2801

A Ruby gem for the ws2801 chip (used in RGB Pixel Stripes/Pixel)

Used Pixels (other with same chipset should work) http://www.play-zone.ch/de/12mm-diffused-digital-rgb-led-pixels-25er-strang-ws2801.html

Connected after: http://learn.adafruit.com/light-painting-with-raspberry-pi/hardware

May only work on Raspberry PIs SPSI device?