RC522 RFID Module

Description

The RC522 is a 13.56 MHz RFID reader/writer module that works with standard MIFARE cards and tags. Often used for access control, attendance systems, and inventory tracking, it communicates via SPI or I2C.

Specs

Operating Voltage	3.3–5V
Frequency	13.56 MHz
Communication	SPI (default); I2C supported
Read Range	≈2 cm (card dependent)
Current	26–30 mA typical

Compatibility

• Arduino w/ MFRC522 library
• ESP32/ESP8266/Pico via SPI

Resources

• 📘 Arduino RFID RC522 Guide
  Tutorial
• 🔧 MFRC522 Library
  GitHub repo

Description
The MF522-AN RFID module, built around the original Philips MFRC522 chip, enables secure 13.56MHz card reading via SPI interface. Operating at 3.3V, it ensures stable communication with Arduino, Raspberry Pi, and other development boards. Its compact form factor allows easy integration into custom card reader hardware. Ideal for access control, identification systems, and embedded RFID applications.

Specs
Specs content goes here.

Compatibility
Compatibility information goes here.

Resources
Resources and documentation go here.