#include <LiquidCrystal.h>

LiquidCrystal lcd = LiquidCrystal(6, 7, 5, 4, 3, 2);
int gomb1 = 13;
int gomb2 = 12;
int szam = 0;
bool kapcs = false;

void setup() 
{
  pinMode(gomb1, INPUT);
  pinMode(gomb2, INPUT);
  lcd.begin(16, 2);
}

void loop() 
{
  lcd.setCursor(0, 0);
  lcd.print(szam);

  if(digitalRead(gomb1) == HIGH && kapcs == false)
  {
    szam += 1;
    kapcs = true;
    delay(500);
  }
}