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Infrared speed sensor (encoder reader)
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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
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