Arduino RFID Library for MFRC522 (SPI, I2C and UART) with asynchroneous callbacks
Read/Write a RFID Card or Tag using the ISO/IEC 14443A/MIFARE interface. Modified from the original miguelbalboa to also support I2C and UART connections and provide, in addition to normal constant polling, an option to do asynchroneous callbacks. I.e. have a function called each time that a valid swipe has happend. Used at the

Author: GithubCommunity,miguelbalboa,

Maintainer: GithubCommunity,

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This library is compatible with the avr, STM32F1, teensy, esp8266, samd, esp32 architectures so you should be able to use it on the following Arduino boards:


To use this library, open the Library Manager in the Arduino IDE and install it from there.