RC522 13.56 MHz RFID Contactless Card Reader Module (Mini Version)

Compact RC522 RF module operates at a frequency of 13.56 MHz and is designed for wireless reading and writing of data using contactless cards and key fobs of the Mifare standard. The device is based on the popular MFRC522 chip from NXP. The board supports the SPI interface for convenient connection to microcontrollers and features clearly labelled pins (SDA, SCK, MOSI, MISO, IRQ, GND, RST, 3V3). The module is widely used in the development of access control systems, security alarms and various DIY projects. Features: Product type: RFID reader/writer module / contactless reader (RFID Reader/Writer Module) Specifications: operating frequency 13.56 MHz, MFRC522 chip, SPI interface support (SDA, SCK, MOSI, MISO pins), operating voltage 3.3V Purpose: contactless identification, reading and writing RFID cards and key fobs, building access control systems and intercoms