Waveshare Photo Interrupter Sensor, Speed Measuring

SKU: rz24314514
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  1. Power: 3.3V ~ 5V
  2. Dimension: 26.8mm × 15mm × 18.7mm
  3. Mounting holes size: 3mm
  4. Gap width: 6mm
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Digital module with an optical sensor, with a gap of 6 mm. The module has a built-in comparator, because of this, the output is a digital signal. Supply voltage is from 3.3 V to 5 V. Together with the disc of the encoder, it can be used as a device counting the pulses, etc.
The sensor has a digital output that is to be attached to the pin of the microcontroller, e.g.Arduino. After power-up, at the outputs will be logical statuses 0 or 1.


  1. Infrared detection, eliminating the interference of external stray light
  2.  Schmitt trigger for stable waveform and signal
  3.  Signal output indicator ( while breaking the beam, outputs low level, the indicator lights up )

Package Includes:

1 x Photo Interrupter Sensor
1 x 20-slots encoder disk
1 x XH2.54 3PIN wire

Additional information

Input Voltage (V)

3.3 V to 5 V



Slot Width

6 mm

Communication Interface

0/1 digital signal

Dimensional Accuracy (mm)

27 x 19 x 15 mm