/*
IR_remote_detector sketch
An IR remote receiver is connected to pin 2.
The LED on pin 13 toggles each time a button on the remote is pressed.
Displays IR HEX code in serial monitor
*/

#include <IRremote.h> //adds the library code to the sketch

const int irReceiverPin = 2; //pin the receiver is connected to
const int ledPin = 13;

IRrecv irrecv(irReceiverPin); //create an IRrecv object
decode_results decodedSignal; //stores results from IR detector

void setup()
{
pinMode(ledPin, OUTPUT);
irrecv.enableIRIn(); // Start the receiver object
Serial.begin(9600); // Open serial monitor


}

boolean lightState = false; //keep track of whether the LED is on
unsigned long last = millis(); //remember when we last received an IR message

void loop()
{
if (irrecv.decode(&decodedSignal) == true) //this is true if a message
//has been received
{
if (millis() - last > 250) { //has it been 1/4 sec since last message
lightState = !lightState; //toggle the LED
digitalWrite(ledPin, lightState);
Serial.println(decodedSignal.value, HEX); //Display IR code in serial monitor
irrecv.resume(); // Receive the next value



}
last = millis();
irrecv.resume(); // watch out for another message
}
}