//Bel Sederhana menggunakan arduino 
#include <LiquidCrystal_I2C.h>
#include <Wire.h>
LiquidCrystal_I2C lcd(0x27, 16,2);
#define buzer 5


void setup() {
  pinMode (8, INPUT);
  pinMode(5, OUTPUT);
  lcd.init();
  lcd.backlight();
}

void loop() {
  int buton=digitalRead(8);
  if(buton==HIGH){
    digitalWrite(5, HIGH);
    tone(5,1000);
    lcd.setCursor(16,0);
    lcd.print("ada tamu");
    lcd.scrollDisplayLeft();
    delay(100);
  }
  else{
    digitalWrite(5,LOW);
    noTone(5);
    lcd.clear();
  }
}