This is a Slot Type IR Opto Sensor. With this sensor, you can measure if there are objects in the measuring range, especially useful in applications that you need to monitor the inputs&outputs of a system.
When the Opto sensor didn't cover, the D0 output logic LOW, the signal indicates LED light, when the Opto sensor covered, the D0 output logic HIGH and the LED off, adjust the potentiometer can adjust the sensitivity of the sensor.
Features:
Groove Width: 5mm
Working Voltage: 3.3-5V
Output Signal: digital output (0 & 1)
Package List:
1 x Slot Type IR XD-51 Optocoupler Motor Speed Measuring Counter