Hello everyone.
I want to ask if it possible to make a controller for a pwm pump using only 1 connections.
One cable is the rpm signal and the other is the pwm signal.
The -,+ volts are given trough another cable from the power supply unit so that's something i don't need to worry about.
So is it possible to make a controller only for the signal cable so i can operate the speed of the pump?
I don't mind if i don't see the rpm.