RFID/NFC module

NFC/RFID module to read/store/write/format 13.56mHz ISO14443A contactless tags. Have to add support of 126kHz and emulation. Source code

What functions do you think are most useful for this module?

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Be able to program badge for alarm / open doors (gatekeeper)
Maybe a system to identify computer or console users to use a timer (children limitation on consoles… a father problem…)

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