Dual H-Bridge Board

Below is the result of one full week of thinking, layout, and planning. These H-bridges are made to control two small dc motors. The H-bridge can take up to a 500 mA load. This board will probably be integrated into my scrapbot. The simulation for this circuit can be found here.

I am currently working on a microcontroller to modularize the h-bridge unit. The plan is to be able to send serial instructions to the H-bridge driver microcontroller to drive the motor.

Scrapbot Chassis

Unfortunately one side looks really ugly now, but the orientation of the motor mounts have been fixed. Also I have riveted the motor mounts onto a 2"x2" sheet of acrylic. The motors should probably be remounted using epoxy so their axels can be aligned better.

The next step will be adding wheels. My current candidates are erasers and bottle caps.

Also, I have to decide whether to create another level of plastic to separate the battery and the circuit.

Making a robot to test H-bridge

This is the first step to creating a robot to test my H-bridge. The L-shaped pieces were cut out of a used VCR deck then filed and drilled using a dremel tool.

I seem to have made both of them facing the same direction...