Lego Digital Clock

I built a copy of an awesome lego clock designed by Hans Andersson:

http://tiltedtwister.com/timetwister.html

Mine is a little different in that it uses a Raspberry Pi to control the motors instead of two NXT bricks.  Dexter Industries makes a Pi add-on board called BrickPi which allows you to control lego mindstorms motors, etc from a Pi:

http://www.dexterindustries.com/BrickPi/

Raspberry Pi + BrickPi

All of the code is written in python and is available on github:

https://github.com/dwalton76/LegoDigitalClock