After building many functional but somewhat unfinished looking bots, [Tomdf] really wanted to produce something that felt “complete”. Pingbot is the result and here’s how [Tomdf] describes it:
Pingbot is a very small (38mm diameter), usb rechargeable, programmable, musical, remote control robot designed for maximum fun and danceability.
Though I wasn’t inclined to dance I did find myself smiling watching the video. Pingbot does look finished and has quite a bit of personality too. The brains inside the Pingbot are a Picaxe 08m2. With a 110mAh Li-Po battery, Pingbot can dance happily for a quite a while too. When juice is running low, just plug into your USB port for a recharge. You can find all the info and schematics on the instructible as well as the files to print your own Pingbot shell.