User's Manual

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5.4 General reading instructions

5.4.1 GA – get active

The command GA causes one reading cycle. There are different cycles for different transpondertypes.

This command is only available in the ISO 14443A standard.

Mifare standard 1K/4K: request (REQA)

anticollision

select

Mifare Ultralight/Desfire request (REQA)

anticollision level 1

select 1

anticollision level 2

select 2

The reader answers the UID of an active (non halt) transponder. The length of the UID can be be-

tween 4 and 7 bytes.

Input format: GA <CR>

Output (example): 625E562A <CR>

5.4.2 GT – get tag

With the command GT you select a transponder. The command GT causes one reading cycle. There

are different cycles for different transpondertypes.

Mifare standard 1K/4K: request (WUPA)

anticollision

select

Mifare Ultralight/Desfire: request (WUPA)

anticollision level 1

select 1