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$0.2850
This is the optical counter module. It has analog and digital output for communication with all types of microcontrollers with a working voltage of 3.3 to 5 volts.
Usually Its used to measure rotation degree or speed.
Specificatoins of LM393 Motor Speed Measuring Sensor Module:
- Working voltage: 3.3v or 5v
- Output type: digital 0 and 1
- Output current up to 15 mA
- Groove width: 5 mm
- With output status indicator light
