|C3pi a.k.a. Trackbot|
Trackbot started out as an Arduino-controlled robot. I added a Raspberry Pi, and he became C3Pi.
An additional WiFi dongle on the Pi allows me to control him remotely.
C3Pi has made several public appearances over the years, and I hope he'll perform well on Thursday. He has one weakness; his batteries are buried in his tummy, so when they run out he needs major surgery. One day I'll come up with a better solution, but probably not this week!