#include <Wire.h> 
#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()
{
  lcd.init();                      // initialize the lcd 
  lcd.backlight();                 // turn on backlight
  lcd.print("paste the text to code");               // print on the first line of the LCD display
}

void loop()
{
  // nothing here, since we only want to print "ahoj" once at startup
}