MFRC-522 RC522 RFID IC Card Reader Module with S50 Mifare Card

The MFRC-522 RC522 RFID Reader Module is a compact, low-power 13.56 MHz contactless card reader perfect for hobbyists, engineers, and makers. Whether you're building an access control system, an Arduino-based project, or a smart automation setup, this module delivers reliable card detection and read/write functionality in a small, easy-to-integrate package. Includes one S50 Mifare IC card to get you started immediately.

Key Features

13.56 MHz Operating Frequency — Compatible with ISO/IEC 14443 A/MIFARE standard cards and tags
Includes S50 Mifare Card — One 1KB Mifare S50 IC card included so you can start testing right out of the box
SPI Interface — Easy integration with Arduino, Raspberry Pi, and other microcontrollers via standard SPI communication
Low Operating Voltage — Runs on 3.3V, making it ideal for use with most development boards
Compact Form Factor — Small PCB footprint fits neatly into enclosures and DIY project builds
Fast Read/Write Speed — Supports data transfer rates up to 10 Mbit/s for quick card scanning
Wide Compatibility — Works with MIFARE Classic 1K, MIFARE Mini, MIFARE Classic 4K, MIFARE Ultralight, and MIFARE DESFire cards
Onboard LED Indicator — Visual status indicator for easy debugging and confirmation of card detection

Specifications

Chipset: MFRC522 (NXP)
Operating Frequency: 13.56 MHz
Supply Voltage: 2.5–3.3V DC
Current: 13–26 mA
Interface: SPI (max 10 Mbps)
Reading Distance: Up to ~50mm (depending on antenna and card type)
Operating Temperature: -20°C to +80°C
PCB Dimensions: Approx. 40 x 60mm
Includes: 1x RC522 RFID module + 1x S50 Mifare IC card

What's in the Box

1× MFRC-522 RC522 RFID Reader/Writer Module
1× S50 Mifare 1K IC Card

Perfect For

Arduino & Raspberry Pi DIY projects
Access control and door lock systems
Attendance tracking systems
Smart home automation
Electronics learning and prototyping

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Frequently Asked Questions

Q: What microcontrollers are compatible with the MFRC-522 RC522 RFID module?

A: The MFRC-522 RC522 RFID module is compatible with a wide range of popular microcontrollers including Arduino (Uno, Nano, Mega), Raspberry Pi, ESP8266, and ESP32. It communicates via the SPI protocol and operates at 3.3V logic, making it straightforward to wire into most development board setups.

Q: What type of cards and tags does the RC522 RFID reader support?

A: The RC522 supports ISO/IEC 14443 A/MIFARE standard cards and tags, including MIFARE Classic 1K (the included S50 card), MIFARE Classic 4K, MIFARE Mini, MIFARE Ultralight, and MIFARE DESFire. It operates at 13.56 MHz and can read most common contactless IC cards used in access control and identification applications.

Q: What is the typical reading range of the MFRC-522 module?

A: Under standard conditions, the MFRC-522 module can read cards and tags at a distance of up to approximately 50mm (5cm). Actual range may vary based on the card type, antenna orientation, and environmental interference. Keeping the card or tag parallel and close to the module antenna yields the best results.

Q: Does the module come with any sample code or libraries?

A: The MFRC-522 is one of the most widely used RFID modules in the maker community. Numerous open-source Arduino libraries (such as the popular "MFRC522" library on GitHub) and example sketches are freely available online, making it easy to get up and running quickly even if you are new to RFID technology.

Production & Packaging Notice

To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.