Wall-E is built around an EZ-B Bluetooth Robot controller. All the software functions are handled with the complementary EZ-builder software. All this isn’t revolutionary – our Lego Mindstorms RCX from 1998 could handle object tracking with the Lego camera. Wall-E has 5 servos inside of him as well as an eBay 2.4 GHz wireless camera.
See a video of Wall-E in action at Hack-a-Day. Link -via The Daily What Geek