Per Chris' Teensy use policy, I have to post about the project it was used in, which is fine, I was going to anyways

I have a walkthrough of the whole night. Pictures and descriptions of all 3 devices, schematics, and way at the bottom I added the Teensy code. Unfortunately the code is very simple, I ended up just using them as a delay and I/O control because I didn't have time to implement wireless and a homebrew protocol. Our team of 3 ended up winning first place and people's choice at the Buildathon!

Enjoy
http://blog.colecago.com/?p=172