| Condition | Output Pin | Output LED | | :--- | :--- | :--- | | No object in front | HIGH (1) | OFF | | Object within set range | LOW (0) | ON |
A small trim-pot used to adjust the sensitivity and detection distance. Indicator LEDs: Power LED: Glows when the module is powered. Signal LED: Lights up when an object is detected. Pinout Configuration Fc 51 Ir Sensor Datasheet
When an object enters the detection range, the IR light reflects back. | Condition | Output Pin | Output LED
void setup() pinMode(sensorPin, INPUT); pinMode(ledPin, OUTPUT); Serial.begin(9600); Fc 51 Ir Sensor Datasheet
The FC-51 sensor contains two primary optical components: an and an IR Receiver (Photodiode) . FC-51 IR Proximity Sensor - am I doing it wrong?