Raspberry Pi + some LEDs + Adafruit LED Backpack + Java + Pi4J = Fun :)

see it in action at https://www.youtube.com/watch?v=0miZit94TEU

Links:

• http://learn.adafruit.com/adafruit-raspberry-pi-educational-linux-distro/

• http://jdk8.java.net/fxarmpreview/index.html

• http://pi4j.com/index.html

• http://learn.adafruit.com/adafruit-led-backpack/overview

• http://learn.adafruit.com/matrix-7-segment-led-backpack-with-the-raspberry-pi/overview

• https://github.com/adafruit/Adafruit-LED-Backpack-Library

• https://github.com/adafruit/Adafruit-Raspberry-Pi-Python-Code/tree/master/Adafruit_LEDBackpack

• https://github.com/slintes/RaspiAmpel

• https://github.com/slintes/RaspiAdafruitLEDBackpack