[scott] had a need to capture a mouse and wanted to learn about how to program an arduino, so he built an Arduino controlled mousetrap. It is made from things he had laying around the house, like some Tupperware containers and wooden rods. The program is pretty simple, when a trip wire is touched, t...

[matthew venn] shows us how to create this cool RGB LED lamp. There’s nothing groundbreaking here, but some good information on casting the base out of concrete.  The body of the lap is formed by two thin rods folded in half, stuck in holes in the base, with a lycra sleeve slid over them. The...

[sixerdoodle] sent us this nice firefly project that serves as an intro to charlieplexing. We’ve mentioned charlieplexing before, in our LED Life post and the Breath Controlled LED candles post. This project is quite simple and focues mainly on how to make a charlieplexed circuit work. The goa...