Fc 51 Ir Sensor Datasheet !!exclusive!! File

/* FC-51 IR Sensor - Basic Obstacle Detection Assumption: Sensor outputs LOW when object detected. Adjust logic if your sensor is ACTIVE HIGH. */

delay(50);

Works identically to Raspberry Pi. Use 3.3V pin. The ESP32’s GPIO interrupts work well with the FC-51 for edge-triggered detection. Fc 51 Ir Sensor Datasheet

The module typically features a 3-pin header for easy interfacing: Connect to 3.3V - 5V power source. GND: Connect to the circuit ground. /* FC-51 IR Sensor - Basic Obstacle Detection

The FC-51 features a small, blue potentiometer (variable resistor) on the back of the PCB. Turning this potentiometer changes the comparator’s reference voltage, effectively adjusting the sensitivity. GND: Connect to the circuit ground

The FC-51 is a compact, low-cost infrared (IR) sensor module designed for . It operates by emitting infrared light from an IR LED and detecting the reflected light using a phototransistor. If an object is close enough, the reflected IR intensity is high, and the module outputs a digital signal (either HIGH or LOW) indicating the presence of the object.