Hey, I need to read the voltage that is being sent to a dc motor by an external piece of hardware.
Essentially, I want to tap into the positive/negative wires that connect the motor and the third party circuit board and use the Arduino to measure the voltage that is being sent to that motor from the third party board. I do know that this board sends voltage between a range of 9V DC - 100V DC to the motor.
I have very little experience with electrical engineering so please keep that in mind with your explanation.
I need someone to please provide an explanation on how I can create a circuit and code that would allow me to calculate the voltage using the Arduino. I currently have no code or circuit in place. Thanks in advance!