RFID-RC522

#include <SPI.h>
#include <RFID.h>

#define SS_PIN 10
#define RST_PIN 9
#define drzwi 4
#define led_ziel 2
#define led_czer 3


RFID rfid(SS_PIN,RST_PIN);

int serNum[5];
int cards[][5] = { //Karty
  {129,56,243,82,24},
  {52,206,171,53,101},
};

bool access = false;

void setup(){
  Serial.begin(9600);
  SPI.begin();
  rfid.init();
  pinMode(drzwi,OUTPUT);
  pinMode(led_ziel, OUTPUT);
  pinMode(led_czer, OUTPUT);
  digitalWrite(drzwi, LOW);
  digitalWrite(led_ziel, LOW);
  digitalWrite(led_czer, LOW);
}

void loop() {


  if(rfid.isCard()) {

    if(rfid.readCardSerial()) {
      Serial.print(rfid.serNum[0]);
      Serial.print(",");
      Serial.print(rfid.serNum[1]);
      Serial.print(",");
      Serial.print(rfid.serNum[2]);
      Serial.print(",");
      Serial.print(rfid.serNum[3]);
      Serial.print(",");
      Serial.print(rfid.serNum[4]);
      Serial.println("");


      for(int x = 0; x < sizeof(cards); x++){
        for(int i = 0; i < sizeof(rfid.serNum); i++ ){
          if(rfid.serNum[i] != cards[x][i]) {
            access = false;
            break;
          }
          else {
            access = true;
          }
        }
        if(access) break;
      }
    }
    if(access) {
      Serial.println("Witaj");
      digitalWrite(drzwi, HIGH);
      digitalWrite(led_ziel, HIGH);
      delay(2000);
      digitalWrite(drzwi, LOW);
      digitalWrite(led_ziel, LOW);
      delay(1000);
    }

    else {
      Serial.println("Nieznana!");
      digitalWrite(led_czer, HIGH);
      delay(500);
      digitalWrite(led_czer, LOW);
      delay(500);
      digitalWrite(led_czer, HIGH);
      delay(500);
      digitalWrite(led_czer, LOW);
      delay(500);
      digitalWrite(led_czer, HIGH);
      delay(500);
      digitalWrite(led_czer, LOW);
      delay(500);
      digitalWrite(led_czer, HIGH);
      delay(500);
      digitalWrite(led_czer, LOW);
      delay(500);
      digitalWrite(led_czer, HIGH);
      delay(500);
      digitalWrite(led_czer, LOW);
      delay(500);
      digitalWrite(led_czer, HIGH);
      delay(500);
      digitalWrite(led_czer, LOW);
      delay(1000);

    }
  }
}