#include <IRremote.h>

#define RECEIVER_PIN 7
#define LED_RED     13
#define LED_GREEN   12
#define LED_PURPLE  8
#define LED_BLUE    4
#define LED_CYAN    2
IRrecv receiver(RECEIVER_PIN);
decode_results results;
unsigned long key_value = 0;

void setup() {
  Serial.begin(9600);
  pinMode(LED_RED, OUTPUT);
  pinMode(LED_GREEN, OUTPUT);
  pinMode(LED_PURPLE, OUTPUT);
  pinMode(LED_BLUE, OUTPUT);
  pinMode(LED_CYAN, OUTPUT);
  receiver.enableIRIn();
}

void loop() {
  if (receiver.decode(&results)) {
    switch (results.value) {
      case 0xFFFFFFFF | 0xFF: {
        results.value = key_value;
      }
      case 0xFF45BA: {
        digitalWrite(LED_RED, HIGH);
        delay(100);
        digitalWrite(LED_RED, LOW);
        break;
      }
      case 0xFF47B8: {
        digitalWrite(LED_GREEN, HIGH);
        delay(100);
        digitalWrite(LED_GREEN, LOW);
        break;
      }
      case 0xFF44BB: {
        digitalWrite(LED_PURPLE, HIGH);
        delay(100);
        digitalWrite(LED_PURPLE, LOW);
        break;
      }
      case 0xFF43BC: {
        digitalWrite(LED_BLUE, HIGH);
        delay(100);
        digitalWrite(LED_BLUE, LOW);
        break;
      }
      case 0xFF15EA: {
        digitalWrite(LED_CYAN, HIGH);
        delay(100);
        digitalWrite(LED_CYAN, LOW);
        break;
      }
    }
    Serial.println(results.value, HEX);
    key_value = results.value;
    receiver.resume();
  }
}