I have an Arduino UNO in a basic setup with a magnetic position sensor. I wanted to know if there is any way for the Arduino to output the rotational speed of the sensor (preferably in rpm). Or will that require a motor.
Sorry in advance for any confusion this may cause.
I guess the answer kind of depends on which of the many versions of the sensor you have.
Why do you thing a motor is needed. Just need to determine that actual number of rotations per unit of time, second, minute, whatever is appropriate.
Paul
No you do not need a motor, just something to change position into a rotary motion to drive the sensor. From the pulses generated you can calculate RPM very easily.