I am playing around with my arduino and the nfc shield from adafruit and ran into an interesting problem.
Whenever I try and read (wit readMifare example) my Oyster Card (London, UK Transport Card) it says that it is a Mifare Ultralight Card, however I know that it is a Mifare DesFire Card.
How can I distinquish between those two? I also get the same thing with one of my bankcards.
Thank you very much.
PS: Do most bankcards use the Mifare Classic?