Install Arduino and add the Adafruit libraries for the Adafruit_WS2801.h and Adafruit_NeoPixel.h for Arduino. you can find them at https://github.com/adafruit

If you are new to the world of Arduinos, I would suggest that you follow the first few guides by Simon Monk on the learn.adafruit.com starting with the first lession.

https://learn.adafruit.com/category/learn-arduino 

next upload NorN_4.ino sketch to your Arduino using your normal method. You can download sketch from here

https://github.com/Corteil/NorN_4

 install the RGB strip shield, contect the RGB strips to the shield and NeoPixel sticks. you will not be able to test until the Arduino and Raspberry Pi are conected together.

NOTE: you could use just a NeoPixel strip instead of the RGB shield and RGB strip, the Arduino sketch would required adjusting if this was done.

Connect the Arduino SDA and SCL lines to the Raspberry Pi plus connect grounds of both devices together.