#include <Arduino.h>

// Pin definisi tombol
const int Btn1 = 18;
const int Btn2 = 2;
const int Btn3 = 4;
const int Btn4 = 16;
const int Btn5 = 17;
const int Btn6 = 5;

// Pin definisi LED
const int Led1 = 19;
const int Led2 = 21;
const int Led3 = 22;
const int Led4 = 23;
const int Led5 = 25;
const int Led6 = 26;

const int Relay = 27;

// Variabel untuk tombol
int tombolAktif = 0; // 0 = tidak ada tombol aktif

void setup() {
  // Inisialisasi pin tombol sebagai input
  pinMode(Btn1, INPUT);
  pinMode(Btn2, INPUT);
  pinMode(Btn3, INPUT);
  pinMode(Btn4, INPUT);
  pinMode(Btn5, INPUT);
  pinMode(Btn6, INPUT);

  // Inisialisasi LED dan relay sebagai output
  pinMode(Led1, OUTPUT);
  pinMode(Led2, OUTPUT);
  pinMode(Led3, OUTPUT);
  pinMode(Led4, OUTPUT);
  pinMode(Led5, OUTPUT);
  pinMode(Led6, OUTPUT);
  pinMode(Relay, OUTPUT);

  // Matikan semua LED dan relay awalnya
  digitalWrite(Led1, LOW);
  digitalWrite(Led2, LOW);
  digitalWrite(Led3, LOW);
  digitalWrite(Led4, LOW);
  digitalWrite(Led5, LOW);
  digitalWrite(Led6, LOW);
  digitalWrite(Relay, LOW);

  // Serial Monitor
  Serial.begin(115200);
  Serial.println("Cek tombol siap!");
}

void loop() {
  // Cek jika tidak ada tombol aktif
  if (tombolAktif == 0) {
    if (digitalRead(Btn1) == HIGH) {
      Serial.println("Tombol 1 ditekan");
      tombolAktif = 1;
      digitalWrite(Led1, HIGH);
      digitalWrite(Relay, HIGH);
    } 
    else if (digitalRead(Btn2) == HIGH) {
      Serial.println("Tombol 2 ditekan");
      tombolAktif = 2;
      digitalWrite(Led2, HIGH);
      digitalWrite(Relay, HIGH);
    }
    else if (digitalRead(Btn3) == HIGH) {
      Serial.println("Tombol 3 ditekan");
      tombolAktif = 3;
      digitalWrite(Led3, HIGH);
      digitalWrite(Relay, HIGH);
    }
    else if (digitalRead(Btn4) == HIGH) {
      Serial.println("Tombol 4 ditekan");
      tombolAktif = 4;
      digitalWrite(Led4, HIGH);
      digitalWrite(Relay, HIGH);
    }
    else if (digitalRead(Btn5) == HIGH) {
      Serial.println("Tombol 5 ditekan");
      tombolAktif = 5;
      digitalWrite(Led5, HIGH);
      digitalWrite(Relay, HIGH);
    }
    else if (digitalRead(Btn6) == HIGH) {
      Serial.println("Tombol 6 ditekan");
      tombolAktif = 6;
      digitalWrite(Led6, HIGH);
      digitalWrite(Relay, HIGH);
    }
  } 
  else {
    // Tunggu semua tombol dilepas
    if (digitalRead(Btn1) == LOW && digitalRead(Btn2) == LOW &&
        digitalRead(Btn3) == LOW && digitalRead(Btn4) == LOW &&
        digitalRead(Btn5) == LOW && digitalRead(Btn6) == LOW) {
      tombolAktif = 0; // Reset tombol aktif

      // Matikan semua LED dan relay
      digitalWrite(Led1, LOW);
      digitalWrite(Led2, LOW);
      digitalWrite(Led3, LOW);
      digitalWrite(Led4, LOW);
      digitalWrite(Led5, LOW);
      digitalWrite(Led6, LOW);
      digitalWrite(Relay, LOW);
    }
  }
}