#include <LiquidCrystal_I2C.h>

#define I2C_ADDR    0x27
#define LCD_COLUMNS 20
#define LCD_LINES   4

LiquidCrystal_I2C lcd(I2C_ADDR, LCD_COLUMNS, LCD_LINES);

byte button = 2;
int szamlalo = 240;
void setup() {
pinMode(2, INPUT_PULLUP);

lcd.init();
lcd.backlight();

lcd.setCursor(2, 1);
  lcd.print("Szilvasi Levente");
  delay(2000);
  lcd.clear();

}

void loop() {
if( digitalRead(button) == LOW)
{
  while (digitalRead(button) == LOW) {

  delay(20);
  
  }
szamlalo = szamlalo+1;
lcd.setCursor(4,0);
lcd.print(szamlalo);
if (szamlalo == 254){
    szamlalo=0;
    lcd.clear();
}
{
delay(20);
}
}
}