Decode IR Remote using Arduino

Decode IR Remote using Arduino

In this tutorial we will learn how we can Decode IR Remote using Arduino.
Watch the Video carefully.

IRremote.h github link:

Source code:


const int RECV_PIN = 2;
IRrecv irrecv(RECV_PIN);

decode_results results;

void dump(decode_results *results) {
  // Dumps out the decode_results structure.
  // Call this after IRrecv::decode()
  int count = results->rawlen;
  if (results->decode_type == UNKNOWN) {
    Serial.print("Unknown encoding: ");
  else if (results->decode_type == NEC) {
    Serial.print("Decoded NEC: ");
  else if (results->decode_type == SONY) {
    Serial.print("Decoded SONY: ");
  else if (results->decode_type == RC5) {
    Serial.print("Decoded RC5: ");
  else if (results->decode_type == RC6) {
    Serial.print("Decoded RC6: ");
  else if (results->decode_type == PANASONIC) {
    Serial.print("Decoded PANASONIC - Address: ");
    Serial.print(results->address, HEX);
    Serial.print(" Value: ");
  else if (results->decode_type == LG) {
    Serial.print("Decoded LG: ");
  else if (results->decode_type == JVC) {
    Serial.print("Decoded JVC: ");
  else if (results->decode_type == AIWA_RC_T501) {
    Serial.print("Decoded AIWA RC T501: ");
  else if (results->decode_type == WHYNTER) {
    Serial.print("Decoded Whynter: ");
  Serial.print(results->value, HEX);
  Serial.print(" (");
  Serial.print(results->bits, DEC);
  Serial.println(" bits)");
  Serial.print("Raw (");
  Serial.print(count, DEC);
  Serial.print("): ");

void setup()
  irrecv.enableIRIn(); // Start the receiver

void loop() {
  if (irrecv.decode(&results)) {
    irrecv.resume(); // Receive the next value
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One Comment

  1. This is great and similar to what I have been trying to do. However what I’m working with is a ceiling fan. I have set it up to receive raw data which I do. However it seems the ceiling fan remote might be transmitting on a frequency not 38mHz so I can’t emulate the signal back to the fan. Any suggestions?

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