I have an RFID-RC522 module that I recently purchased from a hobby store, it came with a key fob and a card. I was experimenting with it last night and was working just fine using Raspberry Pi Pico, but all over sudden, the card is not getting detected by the module. I thought I had a problem with my code, but then even after switching to Arduino Uno the card is not being read or detected, but the key fob is working fine. I am using the examples from the famous MFRC522 Library by GitHub Community available in the Arduino Library manager to do the tests. Could my card be destroyed or what? Is there a way to fix it?
I have seen some people with the problems with the code and connections but mine the key fob is working so I think it's the card issue.
Why is my RFID card not being recognized by my reader?
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