Hi,
Is it possible to read a Mifare Plus card with 7 byte UID with the Adafruit Breakout Board?
Sincerely,
Keijers Jef
Adafruit breakout board with Mifare Plus
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Please be positive and constructive with your questions and comments.
- ktownsend
- Posts: 1447
- Joined: Thu Nov 05, 2009 2:18 am
Re: Adafruit breakout board with Mifare Plus
Yes, you can read 7 bytes UIDs.
You should be able to use these function specify the UID length as a parameter, though you'll need to do some poking around in the code yourself to modify things:
Snippets taken from here: https://github.com/adafruit/Adafruit_NF ... ld_I2C.cpp
You should be able to use these function specify the UID length as a parameter, though you'll need to do some poking around in the code yourself to modify things:
Code: Select all
/**************************************************************************/
/*!
Waits for an ISO14443A target to enter the field
@param cardBaudRate Baud rate of the card
@param uid Pointer to the array that will be populated
with the card's UID (up to 7 bytes)
@param uidLength Pointer to the variable that will hold the
length of the card's UID.
@returns 1 if everything executed properly, 0 for an error
*/
/**************************************************************************/
boolean Adafruit_NFCShield_I2C::readPassiveTargetID(uint8_t cardbaudrate, uint8_t * uid, uint8_t * uidLength)
Code: Select all
/**************************************************************************/
/*!
Tries to authenticate a block of memory on a MIFARE card using the
INDATAEXCHANGE command. See section 7.3.8 of the PN532 User Manual
for more information on sending MIFARE and other commands.
@param uid Pointer to a byte array containing the card UID
@param uidLen The length (in bytes) of the card's UID (Should
be 4 for MIFARE Classic)
@param blockNumber The block number to authenticate. (0..63 for
1KB cards, and 0..255 for 4KB cards).
@param keyNumber Which key type to use during authentication
(0 = MIFARE_CMD_AUTH_A, 1 = MIFARE_CMD_AUTH_B)
@param keyData Pointer to a byte array containing the 6 byte
key value
@returns 1 if everything executed properly, 0 for an error
*/
/**************************************************************************/
uint8_t Adafruit_NFCShield_I2C::mifareclassic_AuthenticateBlock (uint8_t * uid, uint8_t uidLen, uint32_t blockNumber, uint8_t keyNumber, uint8_t * keyData)
- ktownsend
- Posts: 1447
- Joined: Thu Nov 05, 2009 2:18 am
Re: Adafruit breakout board with Mifare Plus
Ah, sorry. I missed the Mifare 'Plus'! I can't say, since we don't have any cards. The answer is almost certainly yes, but it's not currently support if it differs significantly from Mifare Classic or Mifare Ultralight, which is all we support at the moment since those are the easiest to source and most common cards in the wild.
Please be positive and constructive with your questions and comments.