#include "LiquidCrystal_I2C.h"
LiquidCrystal_I2C lcd(0x27,16,2); 
void setup() {
lcd.init();
lcd.clear();
lcd.backlight(); 
lcd.setCursor(2,0); 
lcd.print("Hello world! ");
lcd.setCursor(2,1); 
}
void loop() { }