Fc 51 Ir Sensor Datasheet < 2025 >

The LM393 voltage comparator compares the voltage from the photodiode against a reference voltage set by the potentiometer.

Lights up continuously when the module is correctly connected to power (VCC and GND). Fc 51 Ir Sensor Datasheet

The module typically features a 3-pin interface (sometimes 4 pins, though one is often unused). The LM393 voltage comparator compares the voltage from