I have a 30 amp PWM that I use to control the speed of a 12v blower motor.
Turn up or down the pot and the fan speeds up and slows down accordingly.
What I’d like to be able to do is control the PWM (fan speed) based on temperature readings from the Arduino.
Is there a way that the Arduino can act as the pot (0k - 5k resistance)? Perhaps using some other hardware as well?
I don’t want to control a servo or stepper to actually turn the existing pot.