You might have noticed that my recent projects were mostly walkers. Well, here's another one. This creation, made from a single NXT kit, hops around using its walker and its one leg. The program that comes with this robot will move the bot around while avoiding walls.

Building and programming instructions

Click on the picture above to see step-by-step building instructions. Feel free to email me if you build it or if you are having trouble getting it to walk.
The right body motor connects to port C on the NXT. The left body motor to B and the leg motor connects to port A. You plug the cable of the Ultra Sonic Sensor in sensorport 4. Click here to download the program.