#include <Arduino.h>
#include <Wire.h>
#include <LiquidCrystal_I2C.h>
LiquidCrystal_I2C lcd(0x27, 16, 2);

//atur alamat LCD, nomor dari kolom dan baris

const int pinBuzzer = 13;
const int merah = 41;
const int hijau = 40;

String text = "Caution!! Gas anda mengalami kebocoran";
int textLength = text.length();
int lcdWidth = 16;

void setup() {
  pinMode(pinBuzzer, OUTPUT);
  pinMode(merah,OUTPUT);
  pinMode(hijau,OUTPUT);
  lcd.init();
  lcd.backlight();
  lcd.setCursor(0,0);
  digitalWrite(hijau, HIGH);
  // lcd.print("Selamat Datang projek IOT");
}

void loop(){
tone(pinBuzzer, 500);
delay(100);

noTone(pinBuzzer);
delay(100);

tone(pinBuzzer,500);
delay(100);

noTone(pinBuzzer);
delay(100);

 digitalWrite(merah, HIGH);
 delay(250);
 digitalWrite(merah, LOW);
 delay(250);
  
 for (int position =0; position < textLength -lcdWidth + 1; position++){
  lcd.clear();
  lcd.setCursor(0,0);
  lcd.print(text.substring(position, position + lcdWidth));
  delay(300);
 }
   }
 

//https://jasaarduino.com/cara-simple-menggunakan-lcd-16x2-i2c-menggunakan-esp32/