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

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

void loop() {
lcd.clear();
lcd.setCursor(0,0);
lcd.print("merhaba");
delay(2000);
lcd.clear();
lcd.setCursor(0,1);
lcd.print("dunya");
delay(2000);
}