Photoelectric counter module, motor speed measuring module o

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)
Website: http://www.lctech-inc.com
Email:chinalctech@gmail.com

Photoelectric counter module, motor speed measuring module o