#include <LiquidCrystal_I2C.h>
#include <Wire.h>

LiquidCrystal_I2C lcd(0x27, 16,2);
int button1 = 2;
int button2 = 3;
int potPin = A0;

// Variabel untuk menyimpan status tombol
int button1State = 0;
int button2State = 0;

bool Menu1 = false;
bool Menu2 = false;

void setup() {
  lcd.begin(16,2);
  lcd.backlight();

  // Inisialisasi pin tombol sebagai input
  pinMode(button1, INPUT); // Menggunakan resistor pull-up internal
  pinMode(button2, INPUT);
  pinMode(potPin, INPUT);
  // Tampilkan pesan awal
  
  Menu();
  Serial.begin(9600);
}

void loop() {
  // Baca status tombol
  button1State = digitalRead(button1);
  button2State = digitalRead(button2);
  
  // Jika tombol 1 ditekan, ubah status tampilan data
  if (button1State == HIGH) {
    Menu1 = !Menu1;
    delay(200); // Debounce delay
  }else if (button2State == HIGH){
    Menu2 = !Menu2;
    delay(200); 
  }
  // Jika tampilan data diaktifkan, baca dan tampilkan nilai potensiometer
  if(Menu1) {
    tampil_data();
  }else if (Menu2){
    kirim_data();
  }
  
}

void tampil_data(){
    int potValue = analogRead(potPin); // Baca nilai potensiometer
    // Tampilkan nilai potensiometer pada LCD
    lcd.setCursor(14,0);
    lcd.print("                             ");
    lcd.setCursor(0, 0);
    lcd.print("Potentiometer:");
    lcd.setCursor(0, 1);
    lcd.print("Value: ");
    lcd.print(potValue);
    lcd.setCursor(9, 1);
    lcd.print("                           ");
    lcd.setCursor(0, 1);
    lcd.print("Value: ");
    lcd.print(potValue);
}
void kirim_data(){
  lcd.setCursor(12,0);
  lcd.print("                             ");
  // lcd.setCursor(0,1);
  // lcd.print("                             ");
  lcd.setCursor(0,0);
  lcd.print("Data dikirim");
  lcd.setCursor(0,1);
  lcd.print("                                ");
  int potValue = analogRead(potPin);
  Serial.println(potValue);
  delay(500);
}
void Menu(){
  lcd.setCursor(0, 0);
  lcd.print("1.Tampilkan data");
  lcd.setCursor(0, 1);
  lcd.print("2.Kirim data");
}