Here's my beetlebot which i call Buglet. I got lots of pics but sorry, they aren't in right angle.
First i took parts from my box. Then i went to cut a motor holder from plexiglass. I cutted and bended it to right angle. Then i attached motors and switches and battery holder to it. And next i soldered wires and it is READY! But later i put antennas to switches.
Incredibly simple, yet you have managed to get good behavior through the mechanical design. Nice work.
I think I understand how you wired it, but in the top picture I see a couple of transitors and maybe a pair of capacitors. Did you use them or omit them? Could you post a schematic diagram?
Kewl bot! Ima gonna build something like this, too…soon. Okay, my schedule is a bit sludgy… but i might be able to make time for this in the early hours of the morning, since i’m schooling in the afternoon. Can’t start too early in BEAM robotics!