Rotary switch -- confusion over "poles"  / positions etc

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Regular Member

Joined: 25/07/2019
Location: United Kingdom
Posts: 48
Posted: 10:50pm 19 Nov 2022      

Oversimplification warning!

Resistors control the torque of the motor, not the speed.
Voltage controls the speed, and PWM is a good way to control voltage in this context.
It's so easy to do PWM with almost anything with MMBasic.

Suggest use any transistor, Maybe Darlington, or 20p ULN type chip to power motor.
Don't forget a freewheeling diode though.

Alternatively.. post project requirement in details here,
TBS is full of clever helpful people !