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#include <Arduino.h>
#include <Keypad.h>


char kodFunkcni[] = {7,3,5,5,6,0,8,'*'};
char kodZadavaci[] = {'|','|','|','|','|','|','|'};
int pocitadlo = 0;
const byte ROWS = 4; 
const byte COLS = 4; 

char hexaKeys[ROWS][COLS] = {
  {'1', '2', '3', 'A'},
  {'4', '5', '6', 'B'},
  {'7', '8', '9', 'C'},
  {'*', '0', '#', 'D'}
};

byte rowPins[ROWS] = {13, 12 , 14, 27}; 
byte colPins[COLS] = {26, 25, 19, 18}; 

Keypad customKeypad = Keypad(makeKeymap(hexaKeys), rowPins, colPins, ROWS, COLS); 

void setup(){
  Serial.begin(9600);
}
  
void loop(){
  
  char customKey = customKeypad.getKey();

  if(customKey== '#')
  {
    char kodZadavaci[] = {'|','|','|','|','|','|','|'};
  }
  else
  {
    kodFunkcni[pocitadlo] = customKey;
    pocitadlo++;
  }

  if (kodFunkcni==kodZadavaci)
  {
    Serial.println("KABOOM");
  }
  
  if (customKey){
    Serial.println(customKey);
  }
}