
The RC522 RFID Reader/Writer Module is a compact 13.56 MHz contactless RFID/NFC-compatible reader module designed for reading and writing supported RFID cards and tags. It uses the MFRC522 RFID IC and communicates with microcontrollers such as Arduino, ESP32, Raspberry Pi, and other development boards.
The module supports contactless communication and is commonly used for access control, identification, attendance systems, smart locks, and automation projects.