Infrared speed sensor (encoder reader)

Specifications

Working voltage: 3.3V ~ 5V;
Clamping groove width: 5 mm;
Use High Voltage LM393 comparator;
Output form: digital output (0 and 1);
DO: digital output;
AO: Invalid;
Dimensions: Approx. 32 x 14 x 7 mm.

Applications

Widely used in speed detection, pulse counting, etc

Wiring

Tutorial & Code

https://www.brainy-bits.com/speed-sensor-with-arduino/

Data sheet

https://5.imimg.com/data5/VQ/DC/MY-1833510/lm393-motor-speed-measuring-sensor-module-for-arduino.pdf