#include <LiquidCrystal.h>

const int rs = 12, en = 11, d4 = 5, d5 = 4, d6 = 3, d7 = 2;
LiquidCrystal lcd(rs, en, d4, d5, d6, d7); 

void setup() {
  // put your setup code here, to run once:
  lcd.begin(16,2);
  lcd.print("hello world !");
  // LED
  pinMode(LED_BUILTIN, OUTPUT);
}

void loop() {
  // put your main code here, to run repeatedly:
  lcd.setCursor(14, 15);
  lcd.print(millis() / 1000);
  //changing
  lcd.setCursor(0, 1);
  lcd.print("Wojtek here !");
  // LED
  digitalWrite(LED_BUILTIN, HIGH); 
  delay(100);  
  digitalWrite(LED_BUILTIN, LOW); 
  delay(100);
}