Essentially I have a fully working project which has a typical PSU to PWM to (very large) Motor. All that I need to control here is the speed of the motor and the on off switch. Currently this is being done by turning a pot (10k) on the PWM and using a rocker switch (tada!) I now want to adapt thi…

Arduino to control existing PWM board?

sdturner September 20, 2012, 9:35pm 6

The ground of the motor controller and the ground of the Arduino should be connected together.

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