Here is a motor speed sensor module, ... (resolution 12 slots/disk) attached to its shaft. Final result observed was somewhat close to the spec of the robo motor’s rpm value. Arduino hardware hook up ...

His test circuit uses six 2N2222 transistors to protect the Arduino from excessive current. You can see six red LEDs above which are inline with the base of teach transistor.

Integrate the motor to a machine, based on analysis of motor equations for voltage, current, torque and speed. Implement the motor and accompanying rotary sensor into a motor control circuit in both ...

I was planning to use the opto-coupler speed sensor as part of a motor speed control – making the motor into the VCO block in a phase-locked loop. When this technique works, using it is simple: put ...