I'm a fan of Lego robotics. I've written over half a dozen books on the Lego Mindstorms NXT robotic system, and tinkering and prototyping with the NXT just never gets old. (And there's a NEW system ...
[Joe L] sent in the Arduway on the tipline. It is a robot made of Arduino and Lego NXT components based on the Segway. A software library to control LEGO NXT motors and a few sensors he used is ...
If you enjoy using the Arduino platform and would like to create your very own self balancing robot, you might be interested in a new device called the Hippo-ADK which is Arduino based and can be used ...