✅ RFID Reader Module (RC522)

Uses

Access control systems

Attendance tracking

Contactless card authentication

Inventory management

Functions

Reads UID of 13.56 MHz RFID cards/tags

Communicates via SPI interface

Sends card data to a microcontroller

Features

Operating voltage: 3.3V

Range: up to 5 cm

Fast data communication

Comes with key fob and RFID card