This is the Arduino sketch for my first LED Icosahedron. The LED part is explained on my homepage.
The sources are hosted on https://github.com/jensh/ArduinoLedIkosaeder/ .
Variants of the icosahedron are in the other branches:
Connect the 7 LED wires (via 220Ω) with the output pins D8, D9, D2, D3, D4 and D5. Pin D7 is unused in this sketch.