Version 3

[abobija]

• Returns card type (mifare 1k, 4k, ...) based on SAK
• Functions for reading/writing from/to memory on MIFARE Classic cards
• Sector Trailer block protection (write prevented by default, configurable via menuconfig)
• Hard reset via RST pin (optional, auto switch to soft if hard fails)
• Firing events when picc changes state (all states described in 14443 iso are supported)
• Added examples
  • Basic for getting UID and type of the card
  • Dump whole card memory content
  • Reading and writing from/to card memory
• Unit tests
• CI
  • Run unit tests
  • Build examples
• Returns UID length, and UID is now in the form of a byte array
  • resolves Select quantity of UID bytes. #41
  • resolves Different Serials #23
• Rewritten read_write test. Using PCD fifo buffer now to test if the library can read/write multiple bytes
  • resolves Read write test failing causes Failed to write data (err: ESP_ERR_INVALID_STATE) #37 (hopefully)
• Firing event when card disappears from the scanner field
• Additional affected issues:
  • closes Problems with rc522 mini #40
  • closes Cannot figure out how to interface mfrc522 with AI-Thinker esp32cam through SPI. #25 because library is fully rewritten, and this should be tried again (feel free to reopen the issue if you are facing the same issue in the new version)