Fc 51 Ir Sensor Datasheet | Desktop |

The module is widely favored in the Arduino and Raspberry Pi communities because it outputs a clean digital signal, requiring no complex signal processing code to get a basic project running.

The FC-51 includes a small, blue, multi-turn potentiometer. Turning it changes the detection threshold. Fc 51 Ir Sensor Datasheet

The LM393 comparator allows up to 10 kHz switching, suitable for high-speed motor control. The module is widely favored in the Arduino

A closer look at the datasheet schematic reveals the specific parts that make the module work: Fc 51 Ir Sensor Datasheet

An adjustable knob used to calibrate the sensitivity (detection range). LED Indicators: