-#define AUTHENTICATION_TIMEOUT 848 // card times out 1ms after wrong authentication (according to NXP documentation)\r
-#define PRE_AUTHENTICATION_LEADTIME 400 // some (non standard) cards need a pause after select before they are ready for first authentication\r
-\r
-// mifare 4bit card answers\r
-#define CARD_ACK 0x0A // 1010 - ACK\r
-#define CARD_NACK_NA 0x04 // 0100 - NACK, not allowed (command not allowed)\r
-#define CARD_NACK_TR 0x05 // 0101 - NACK, transmission error\r