lm393 optical encoder module arduino sensor speed sensor kecepatan

Spesifikasi: Working voltage: 3.3V~5V 5mm Groove width Using wide voltage LM393 comparator Output form: Digital switch output (0 and 1) Sensing slots are blocked, the output high and the light is off; no shelter, output low and lights. VCC: + power GND: - power DO: Digital Output AO: Invalid