Some dozen years ago, I very nearly failed a 200-level Electrical Engineering course. More than fifteen years ago was the last time I did much programming. In FORTRAN. This year, I decided to geek out a Jack-o'-Lantern with LEDs and a motion sensor to activate a special sequence for visitors. The whole thing is driven by a Raspberry Pi and programmed in Python. Why a Raspberry Pi? Well, it's all the rage right now, and, while an Arduino is probably a better choice here, a Pi was what I had. And we all know what they say about what to do when all you have is a hammer. Also, I've been working on learning Python lately, so using the Pi was a good way to put what I've been learning to use. All the code is shared on Github, so go check it out. There is a description of the build and plenty of details over on the project page.