/* Hello Wokwi! */

#include <LiquidCrystal_I2C.h>
bool button;
int nilai;
LiquidCrystal_I2C lcd(0x27, 20, 4);

void setup() {
  pinMode(A3,INPUT_PULLUP);
  pinMode(9, OUTPUT);//led
  pinMode(8, OUTPUT);//buzzer

  lcd.init();
  lcd.backlight();
}

void loop() {
    lcd.setCursor(5, 0);
  lcd.print("nomor");
  lcd.setCursor(7, 1);
    lcd.print(nilai);

    button = digitalRead(A3);
 

 if (button == 0){
  nilai = nilai + 1;
  delay(500);
  lcd.clear();
}

if (button == 0){
  digitalWrite(9, LOW);
  delay(500);
  tone(8, 1000, 100);
  delay(200);
  tone(8, 1000,100); 
    delay(200);
  tone(8, 1000,100); 
}

}