A LEGO and Arduino robotic cockroach that runs away from light
- Arduino Uno
- IKEA Smila Bagge children's wall lamp
- Miscellaneous LEGO Technic pieces from the combined collection of the pieces you saved from your childhood and the 1,000,000 pieces your kid has scattered around the house.
- Miscellaneous electronics parts (see [Fritzing diagram](Autonomous Cockroach.fzz)).
(Didn't bother untangling the wires in the diagram)
I'm especially proud of the custom LEGO drive train I made, with rack-and-pinion steering, and with the drive and servo motors sitting in a very compact formation. It's also a modular design where the cover, the circuit and the circuit mounting rack can be removed and put back on easily.