  * SPI MOSI    MOSI         11 / ICSP-4   51        D11        ICSP-4           16
  * SPI MISO    MISO         12 / ICSP-1   50        D12        ICSP-1           14
  * SPI SCK     SCK          13 / ICSP-3   52        D13        ICSP-3           15
- * 
+ *
  */
 
 #include <SPI.h>

    Serial.print(F("Using key (for A and B):"));
    dump_byte_array(key.keyByte, MFRC522::MF_KEY_SIZE);
    Serial.println();
    
    Serial.println(F("BEWARE: Data will be written to the PICC, in sector #1"));
}


    }
    Serial.print(F("Data in block ")); Serial.print(blockAddr); Serial.println(F(":"));
    dump_byte_array(buffer, 16); Serial.println();

    // Check that data in block is what we have written
    // by counting the number of bytes that are equal
    Serial.println(F("Checking result..."));
