MFRC522 RFID 13.56MH Reader Writer Module

The MFRC522 RFID module is a low-cost, compact RFID (Radio Frequency Identification) reader/writer designed to work at 13.56 MHz frequency. It is commonly used for contactless communication with RFID tags and cards, suitable for identification, authentication, and data transfer. The module interfaces with microcontrollers via SPI (Serial Peripheral Interface) and is widely used in security systems, access control, and automation projects. It is compatible with popular development platforms like Arduino and ESP32, making it a popular choice for hobbyists and developers.