Photoelectric counter module, motor speed measuring module

1.The on board LM393 voltage comparators and a photoelectric counting sensor chip.

2.Support 5V/3.3V input voltage.

3.On board signal output indicator, the output signal can be directly and single-chip IO connection.

4.Can be used for counting, motor speed etc.

5. PCB size: 24 (mm) x15 (mm)