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

LiquidCrystal_I2C lcd(0x27,16,2);
int buzzer = 7;
int tombol = 2;

void setup() {
  lcd.init();
  lcd.backlight();
  pinMode(buzzer, OUTPUT);
  pinMode(tombol, INPUT_PULLUP);
}

void loop() {
  lcd.setCursor(16,0);
  lcd.print("Tekan tombol untuk bunyi!");
  lcd.scrollDisplayLeft();
  delay(300);

  if (digitalRead(tombol) == LOW) {
    tone(buzzer, 1000);
    delay(200);
    noTone(buzzer);
  }
}