RFID RC522 SPI S50 Module

The RFID RC522 SPI S50 Module is a high-performance 13.56 MHz RFID reader and writer designed for contactless identification and secure data exchange.
It comes with a MIFARE S50 card and key tag, allowing immediate testing and deployment in Arduino, Raspberry Pi, and IoT access control systems.

This module supports SPI, I2C, and UART communication, making it easy to integrate with a wide range of microcontrollers for projects like smart locks, attendance tracking, and cashless payment solutions.

🔹 Key Features

• 13.56 MHz High-Frequency RFID Reader/Writer

• Multiple Interfaces: SPI (default), I2C, and UART for flexible connections.

• Read/Write Capability: Supports MIFARE S50/S70 and compatible tags.

• Included Accessories: 1 × S50 proximity card and 1 × key fob.

• Low Power & Compact Design: Perfect for embedded and portable applications.

🔹 Technical Specifications

• Operating Voltage: 3.3 V DC (logic level)

• Current Consumption: <13 mA during read/write

• Frequency: 13.56 MHz

• Communication Interfaces: SPI (up to 10 Mbps), I2C, UART

• Reading Distance: Up to 5 cm (depends on tag and environment)

• Compatible Tags: MIFARE S50, S70, UltraLight, Pro

• Module Size: Approx. 40 mm × 60 mm × 5 mm

• Operating Temperature: –20 °C to +80 °C

🔹 Applications & Use Cases

• Access Control & Door Locks – Secure RFID-based entry systems.

• Attendance Systems – Offices, schools, and labs.

• Cashless Payments & Vending Machines – Contactless card payments.

• IoT & Smart Home Automation – Integrate RFID authentication into custom projects.

• Robotics & DIY Electronics – Identification and tracking of objects.

🔹 Advantages for Makers & Engineers

• Fully compatible with Arduino and Accessories and Electronics Components.

• Open-source Arduino libraries and example codes for quick setup.

• Works with a variety of MIFARE cards and key fobs.

🔹 Safety & Precautions

• Use only 13.56 MHz compatible cards and tags.

• Avoid strong electromagnetic interference near the antenna.

• Ensure correct wiring to prevent damage to the 3.3 V logic pins.

🔗 Helpful Internal Links

• Browse more Electronics Components for related modules.

• Pair with Tools and Accessories for installation and prototyping needs.

🎥 Video Tutorial

[YouTube tutorial link here]

📝 Product Summary

The RFID RC522 SPI S50 with RFID Card and Tag delivers secure 13.56 MHz RFID reading and writing, supports SPI/I2C/UART interfaces, and includes a MIFARE S50 card and key fob, making it ideal for Arduino, Raspberry Pi, IoT access control, and smart authentication projects.