I designed this fully custom board to replace the OEM model in my classic car. This was done in order to replace the stock 30 year old active suspension system with new and different aftermarket hardware, necessitating the creation of a custom driver board. The board is comprised of four independent three-phase stepper motor drivers.

It took months of research, but I taught myself MOSFET based circuit design, as well as Autodesk Eagle for the digital design planning. Once I had the raw board made, I got to work soldering the parts together. Somewhat hilariously, most of the soldering process was actually done in a salt covered frying pan, quite successfully I might add, as I’m just a hobbyist without expensive equipment like a soldering oven.

Once the board was constructed, it was necessary to program the five microcontrollers built into the board. Excluding any referenced libraries, I wrote 700 lines of highly error resistant code, with self-recovery, and error checking built in.