Photoelectric Counter Module Motor Speed Measuring Module
Function features
1.The onboard 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)