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

// Inisialisasi LCD
LiquidCrystal_I2C lcd(0x27, 16, 2);

// Pin konfigurasi
const int button1 = 2;
const int button2 = 3;
const int button3 = 4;
const int button4 = 5;

const int led1 = 6;
const int led2 = 7;
const int led3 = 8;
const int led4 = 9;
const int led5 = 10;

void setup() {
  // Inisialisasi pin
  pinMode(button1, INPUT_PULLUP);
  pinMode(button2, INPUT_PULLUP);
  pinMode(button3, INPUT_PULLUP);
  pinMode(button4, INPUT_PULLUP);

  pinMode(led1, OUTPUT);
  pinMode(led2, OUTPUT);
  pinMode(led3, OUTPUT);
  pinMode(led4, OUTPUT);
  pinMode(led5, OUTPUT);

  // Inisialisasi LCD
  lcd.init();
  lcd.backlight();
}

void loop() {
  // Membaca tombol
  if (digitalRead(button1) == LOW) {
    // Menampilkan nama berjalan di baris 1
    lcd.clear();
    lcd.setCursor(0, 1);
    lcd.print("Kelas: XII TKJ");
    for (int i = 0; i <= 16; i++) {
      lcd.setCursor(i, 0);
      lcd.print("Nama Anda");
      delay(300);
      lcd.clear();
      lcd.setCursor(0, 1);
      lcd.print("Kelas: XII TKJ");
    }
  } else if (digitalRead(button2) == LOW) {
    // Nyalakan LED 1, 3, dan 5
    lcd.clear();
    lcd.setCursor(0, 0);
    lcd.print("LED ON");
    digitalWrite(led1, HIGH);
    digitalWrite(led3, HIGH);
    digitalWrite(led5, HIGH);
    delay(1000);
    lcd.clear();
  } else if (digitalRead(button3) == LOW) {
    // Menampilkan teks dan nyalakan LED 2
    lcd.clear();
    lcd.setCursor(0, 0);
    lcd.print("Mikrokontroler");
    lcd.setCursor(0, 1);
    lcd.print("Praktikum");
    digitalWrite(led2, HIGH);
    delay(1000);
    digitalWrite(led2, LOW);
  } else if (digitalRead(button4) == LOW) {
    // Matikan LCD dan nyalakan LED 4
    lcd.noBacklight();
    digitalWrite(led4, HIGH);
    delay(1000);
    digitalWrite(led4, LOW);
    lcd.backlight();
  }
}