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RC522 RFID 13.56MHZ Reader Writer Module / MFRC-522 Reader with Card & Tag

SKU: 6MHGG8R2QL
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The RC522 RFID 13.56MHz Reader Writer Module / MFRC-522 Reader with Card & Tag is a compact contactless radio-frequency identification module designed for reading and writing compatible 13.56MHz RFID cards and tags. Based on the NXP MFRC522 reader/writer IC, the module supports ISO/IEC 14443A, MIFARE, and compatible contactless transponders. The kit typically includes the RC522 reader module, one RFID card,...
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The RC522 RFID 13.56MHz Reader Writer Module / MFRC-522 Reader with Card & Tag is a compact contactless radio-frequency identification module designed for reading and writing compatible 13.56MHz RFID cards and tags. Based on the NXP MFRC522 reader/writer IC, the module supports ISO/IEC 14443A, MIFARE, and compatible contactless transponders. The kit typically includes the RC522 reader module, one RFID card, and one keychain-style RFID tag, making it suitable for quick prototyping and development of identification and access-control systems.

The module uses an integrated PCB antenna to communicate wirelessly with passive RFID cards and tags. A compatible card or tag is powered by the electromagnetic field generated by the reader, so no battery is required inside the passive card or key fob. The MFRC522 supports reader/writer communication at 13.56MHz and offers a typical read/write operating distance of up to approximately 50mm, depending on antenna tuning, tag type, orientation, and environmental conditions.

The commonly available RC522 breakout board is most often interfaced using SPI communication, providing reliable and fast data exchange with Arduino, ESP32, STM32, Raspberry Pi, and other compatible development platforms. The MFRC522 IC also supports I2C and serial UART host interfaces, although the actual interface availability depends on the configuration of the specific breakout board.

Key Features

  • Based on the NXP MFRC522 RFID reader/writer IC
  • Operates at 13.56MHz RFID frequency
  • Supports contactless card and tag reading
  • Supports writing to compatible RFID cards and tags
  • Compatible with ISO/IEC 14443A transponders
  • Supports MIFARE-compatible cards and tags
  • Typical reading distance up to approximately 5cm
  • Integrated PCB antenna
  • Low power consumption
  • Compact PCB design
  • SPI communication commonly used on RC522 modules
  • MFRC522 IC supports SPI, I2C, and UART host interfaces
  • Supports card UID reading and authentication functions
  • Fast communication with microcontrollers
  • Suitable for access control and identification systems
  • Includes RFID card and keychain tag in typical kits
  • Easy interfacing with Arduino and other development boards

Shipping & Returns

Orders placed before 3 PM IST will be shipped on the same day (excluding Sundays and Public holidays) through our shipping partners. In rare cases, the pickup may get delayed during Public holidays / Bandh / Environmental disturbances.

Specifications

Specifications:

Module Type: RFID Reader/Writer Module
Module Model: RC522 / MFRC-522
Main Controller IC: MFRC522
RF Operating Frequency: 13.56MHz
Supported Standard: ISO/IEC 14443A
Supported Technologies: MIFARE and Compatible 13.56MHz Tags
Function: RFID Card and Tag Reading/Writing
Operating Voltage: 3.3V DC
MFRC522 IC Supply Range: 2.5V to 3.3V DC
Typical Operating Current: Approximately 13mA to 26mA, depending on module operation
Power-Down Current: Very Low-Power Mode Supported
Typical Reading Distance: Up to Approximately 50mm
Communication Interface: SPI on Common RC522 Breakout Modules
MFRC522 Host Interfaces: SPI, I2C, and Serial UART
Maximum SPI Data Rate: Up to 10Mbit/s
Contactless Communication Speed: Up to 848kBd
FIFO Buffer: 64 Bytes
Antenna Type: Integrated PCB Antenna
Reset Function: Hardware Reset / Power-Down Control
Interrupt Output: Available through IRQ Pin
Operating Temperature: Approximately -20°C to +80°C, module dependent
Typical Module Dimensions: Approximately 40mm × 60mm
Number of Interface Pins: 8
Included Accessories: 1 RFID Card and 1 RFID Keychain Tag, depending on package
Compatibility: Arduino UNO, Nano, Mega, ESP32, ESP8266, STM32, Raspberry Pi, RP2040 and other compatible development platforms.

Additional Resources

RC522-RFID.PDF

FAQ

1. What is the RC522 RFID Reader Writer Module used for?

The RC522 module is used for contactless identification and authentication using compatible 13.56MHz RFID cards and tags. It is commonly used in attendance systems, access control systems, smart locks, inventory management, and embedded electronics projects.

2. Can the RC522 module both read and write RFID cards?

Yes. The RC522 can read data from and write data to compatible RFID cards and tags. The exact write functionality depends on the type of card or tag being used and its memory and security configuration.

3. Is the RC522 RFID module compatible with Arduino and ESP32?

Yes. The module can be used with Arduino, ESP32, ESP8266, STM32, Raspberry Pi, RP2040, and many other development platforms. Common RC522 breakout boards are usually connected using the SPI interface.

4. What is the typical reading range of the RC522 module?

The typical reading distance is up to approximately 5cm under suitable conditions. Actual range depends on the RFID card or tag type, antenna orientation, module supply quality, and surrounding materials.

5. Does the RFID card or keychain tag require a battery?

No. The commonly supplied RFID card and keychain tag are passive devices. They receive operating energy from the electromagnetic field generated by the RC522 reader when brought close to the module.