Potentiometer with 12 volt motor

Help & Support Robot Parts
1

Hello all,

I have a 12 volts DC motor that I would like to use a potentiometer to control speed of the motor. My motor use a relay Board To control rotation direction & To turn it on & off

I wish the potentiometer to send analog reading To the Arduino but then the Arduino only has 5 volts output

Is there a way to solve this issue ? The analog reading of the potentiometer is very important for my code to realize my programmation.

Thank toi
Steve

2

Hello @12X!

You could make a circuit like this:

Or simply get a motor driver, like this one:


http://wiki.sunfounder.cc/index.php?title=L293D_Motor_Driver_Shield

Then you can simply use the potentiometer as an analog input and according to its value change the speed

3

Great the first option is working
Thank you again for your help

Steve

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