Dan writes -

I’ve been receiving lots of neat little packages in the mail lately full of magical trinkets. Alone, they’re totally useless, but if you take the trinkets and arrange them just so, they’ll let you tell them what to do. Naturally the first thing I thought to make was a tank.

I built this little puppy from some Tamiya kits I assembled and attached to an Arduino, an open source microprocessor controller board that you can program to do all kinds of stuff. This little guy has no sensors at the moment, but it’s got an integrated electronics breadboard making it easy to easily add sensors and stuff without having to solder.

It’s currently being powered by my computer’s USB cable, but it can be hooked tobatteries or an AC adapter when I’m ready to cut the cord.

Arduino robot – Link.