#include <IRremote.h>

const int RECEIVER_PIN = 2;
const int LED_PIN = 13;

IRrecv irrecv(RECEIVER_PIN);
decode_results results;

int num1 = 0;
int num2 = 0;
int sum = 0;

void setup() {
  Serial.begin(9600);
  irrecv.enableIRIn();
}

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

    switch (results.value) {
      case 0xFFA25D: // Tombol 1
        num1 = 1;
        break;
      case 0xFFE21D: // Tombol 2
        num1 = 2;
        break;
      case 0xFFC23D: // Tombol 3
        num1 = 3;
        break;
      case 0xFFA857: // Tombol 4
        num2 = 1;
        break;
      case 0xFFE817: // Tombol 5
        num2 = 2;
        break;
      case 0xFFC837: // Tombol 6
        num2 = 3;
        break;
      case 0xFF906F: // Tombol +
        sum = num1 + num2;
        Serial.println("Hasil penjumlahan: " + String(sum));
        digitalWrite(LED_PIN, HIGH);
        delay(1000);
        digitalWrite(LED_PIN, LOW);
        break;
    }

    irrecv.resume(); // Siap menerima sinyal selanjutnya
  }
}