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

void setup() {
 lcd.begin();
}

void loop() {
lcd.setCursor(0,0);
lcd.print("Hello, world!");
lcd.setCursor(0,1);
lcd.print("Belajar LCD 12C");
}