The FC-03 optical speed sensor is a budget wheel encoder module broadly used for sensing a motor’s velocity. It can be connected to any 3.3V/5V microcontroller using a set of standard breadboard ...

Here is a motor speed sensor module, the major goal is to check the rate of an electric motor. The module can be used in association with a microcontroller for motor speed detection, pulse count, ...

It's just that their speed varies least from no load to full load of all ac-induction motors. Other induction-motor types don't even come close to matching the speed regulation of these motors. Yet, ...