#include <IRremote.h>

// receiving pin
int RECV_PIN = 12;
IRrecv irrecv(RECV_PIN); // object to receive class
decode_results results; // decoding results object

void setup() {
  // put your setup code here, to run once:
  Serial.begin(9600); // baud rate
  irrecv.enableIRIn(); // start the receiver
}

void loop() {
  // put your main code here, to run repeatedly:
  if(irrecv.decode(&results)){ // waiting for decoding
    Serial.println(results.value, HEX); // decoded results
    irrecv.resume(); // receive next value
  }
  delay(100); // delay 100ms
}