Setup

void setup() {
  Serial.begin(9600);
  finger.begin(57600);

  lcd.init();
  lcd.createChar(Z_MEKCEN, z_mekcen);
  lcd.createChar(E_DLZEN, e_dlzen);
  lcd.createChar(A_DLZEN, a_dlzen);
  lcd.createChar(A_BODKY, a_bodky);
  lcd.createChar(C_MEKCEN, c_mekcen);
  lcd.createChar(KURZOR, kurzor);
  lcd.backlight();
  clearScreen();

  dvere.servo.attach(SERVO);
  dvere.servo.write(90);
  _delay_ms(200);
  dvere.servo.detach();

  SPI.begin();
  rfid_reader.PCD_Init();

  pinMode(ZATVORENE, OUTPUT);
  pinMode(ZAMOK, OUTPUT);
  pinMode(POTVRDENIE, INPUT_PULLUP);
  pinMode(PREPINANIE, INPUT_PULLUP);

  readId();
  volne_miesto = getClosestEmptyId();

  uint8_t j, i;

  /** Čítanie UIDov do EEPROM */
  for (i = 0; i < UID_COUNT; i++) {
    char s[9];

    if (EEPROM.read(9 * i) == 255) break;

    for (j = 0; j < 8; j++) {
      s[j] = EEPROM.read(9 * i + j);
    }

    s[8] = '\0';

    uids[i] = s;
  }
}