The HW-126 RFID RC522 RFID Reader Module is a compact contactless identification module designed for reading compatible 13.56 MHz RFID cards, tags, and key fobs. It uses the SPI communication interface, making it easy to connect to popular development boards and microcontrollers such as Arduino and other 3.3V-compatible systems.
The module features an integrated antenna coil for wireless communication with RFID tags and includes clearly marked connection pins for convenient wiring. Its small size makes it suitable for projects where space is limited.