Example Code for Arduino-Infrared controlled Light

Last revision 2026/01/08

Explore how to use Arduino to create an infrared-controlled light system, complete with hardware setup, software preparation, wiring diagrams, and sample code for easy implementation.

Wiring Diagram


Sample Code

/*
     Infrared controlled Light
*/
#include <IRremote.h>
int RECV_PIN = 11;
int ledPin = 10;
boolean ledState = LOW;
IRrecv irrecv(RECV_PIN);
decode_results results;

void setup(){
  Serial.begin(9600);
  irrecv.enableIRIn();
  pinMode(ledPin,OUTPUT);
}

void loop() {
  if (irrecv.decode(&results)) {
      Serial.println(results.value, HEX);

      if(results.value == 0xFD00FF){
               ledState = !ledState;
               digitalWrite(ledPin,ledState);
           }
   irrecv.resume();
   }
}

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