#include <LiquidCrystal_I2C.h>

// Set the LCD address to 0x27 for a 16 chars and 2 line display
LiquidCrystal_I2C lcd(0x27, 16, 2);

void setup()
{
  // initialize the LCD
  lcd.begin(16, 4); //Init with pin default ESP8266 or ARDUINO
  Serial.begin(115200);

  lcd.setCursor(0, 1);
  lcd.print("Hello, world!");
}

void loop(){
  while(Serial.available()==0){

  }
  

}