Fc 51 Ir Sensor Datasheet May 2026

The FC-51 can run on 3.3V, making it safe for Pi GPIO. Use the same pinout but connect VCC to 3.3V.

Keep ambient IR low, adjust the potentiometer for your target reflectivity, and always confirm the pinout before powering up. Fc 51 Ir Sensor Datasheet

delay(50);

void loop() sensorState = digitalRead(sensorPin); The FC-51 can run on 3