Micro DC Motor Controller


Assembled and tested my Micro DC Motor Controller. Running the test motor on 50ma in the picture. Added a coin to show how small these boards actually are. A few mechanical issues only. The SWD connector is “ok”, but it is a bit close on the MCU. The screw terminal (blue) is almost on top of the LM9110S H-Bridge.

It works perfect, but I have a few spare pins so I will see if I can add current sensor to calculate torque. I can see the current increase as I hold back the motor and I would like to measure that to implement thresholds if the motor run into to high load or stall.

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