Something wrong while running the demo code.

ondryaso / pi-rc522

Raspberry Pi Python library for SPI RFID RC522 module

MIT License

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Closed prikevs closed 8 years ago

prikevs commented 9 years ago

When I run your first demo code with no util, I gotta an error while reading cards.
I tried to debug in RFID.py, found that when I call the function rdr.read(block_address), In RFID.py, the write() function in read() returns an empty list.
Your second demo code runs well, I have no idea why this happens.
At last, could you please tell me can this RF522 module with your lib rewrite the uid of some cards whose uid have been declared to be able to be modified.

Thanks a lot !

faultylee commented 8 years ago

@prikevs the demo code is missing select_tag() before calling card_auth(). You can see the updated readme here

EDIT: Also, card_auth() returns error so it should be if not rdr.card_auth(...):