   delay(500);
   Serial.println(F("Initializing SPI driver ..."));
   SPI.begin();        // Init SPI bus
-  if (mfrc522.PCD_PerformSelfTest()) { 
+  if (mfrc522.PCD_PerformSelfTest()) {
     key.keyByte[0] = 0x00;
     key.keyByte[1] = 0x30;
     key.keyByte[2] = 0x03;

    }
    // In this sample we use the second sector,
    // that is: sector #1, covering block #4 up to and including block #7
    byte sector         = 1;
    byte blockAddr      = 4;
    byte trailerBlock   = 7;
    MFRC522::StatusCode status;

      case 9: if (tc >= 2003 && tc <= 2100) off(); else on(); break;
      case 10: if (tc >= 1003 && tc <= 1100) off(); else on(); break;
      case 11: if (tc >= 1503 && tc <= 1600) off(); else on(); break;
      case 12: if ((tc >= 503 && tc <= 600) || tc >= 5500) off(); else on(); break;
      case 13: off(); break;
      case 14: if (tc >= 0 && tc <= 2000) off(); else on(); break;
      case 15: if (tc >= 503 && tc <= 600) off(); else on(); break;
      case 16: if ((tc >= 3 && tc <= 100) || (tc >= 5003 && tc <= 5100)) off(); else on(); break;
      case 17: if (tc >= 1000 && tc <= 2000) off(); else on(); break;
      case 18: if (tc >= 5000) off(); else on(); break;
      case 20: if (tc >= 2003 && tc <= 2100) off(); else on(); break;
