SKU: SENS-2576
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Generic RC522 13.56MHz RFID Card Reader Module - SPI Interface

₹93.00 (Inclusive of all taxes)
Out of Stock

The RC522 RFID Card Reader Module is a 13.56MHz contactless reader/writer designed for integration into microcontroller systems like Arduino, Raspberry Pi, and ESP32 via SPI interface, operating at a low 3.3V DC supply.

Features

  • Integrated NXP Semiconductors RC522 reader/writer IC for 13.56MHz contactless communication.
  • SPI interface for direct connection to 3.3V/5V logic microcontrollers (Arduino, Raspberry Pi, ESP32).
  • Supports ISO14443A protocol and MIFARE Classic 1K/4K cards with a typical read range up to 60mm.
  • Low power consumption with 13-26mA active current and <80µA sleep current.
  • Compact PCB footprint (60mm x 40mm) for embedding into handheld devices and access control systems.

Out of stock

Description

This module centers on the highly integrated NXP Semiconductors RC522 IC, a low-power, cost-effective solution for 13.56MHz RFID applications. It employs advanced modulation and demodulation techniques, fully supporting the ISO14443A standard for frame handling and error detection, and includes support for CRYPTO1 encryption for secure validation of MIFARE series products.

Designed for reliable operation in smart meters and portable handheld devices, the module communicates via a high-speed SPI serial interface, ensuring stable data transfer up to 10 Mbps. Its compact form factor and 3.3V power requirement make it an ideal choice for embedding into final product designs for mass production.

Key Features

  • NXP Semiconductors RC522 Core: Highly integrated reader/writer IC offering a complete 13.56MHz RFID solution.
  • SPI Communication Protocol: Ensures simple, fast, and reliable serial interface with host controllers.
  • Broad Card Compatibility: Reads and writes to ISO14443A compliant transponders, including MIFARE Classic 1K/4K.
  • Optimized Power Management: Features low active, standby, and deep sleep currents for battery-sensitive applications.
  • Secure Data Exchange: Supports CRYPTO1 encryption algorithm for authenticated communication.
  • Compact & Embeddable Design: Standard 60x40mm PCB size facilitates direct integration into reader molds and end-products.
  • Wide Operating Temperature: Functions reliably from -20°C to +80°C.
  • High-Value Build: Delivers professional-grade RFID functionality at an optimized performance-to-cost ratio.

Applications

  • Access control and door entry systems using RFID keycards or tags.
  • Inventory management and asset tracking in logistics and warehousing.
  • Smart meter and vending machine payment or user identification interfaces.
  • Portable handheld data collection terminals for field service.
  • Interactive toy and game development with object identification.

Technical Specifications

Model / Core ICRC522 RFID Reader Module
Operating Frequency13.56 MHz
Read Range (Typical)Up to 60 mm
Supported ProtocolsISO14443A, MIFARE Classic
Communication InterfaceSPI
Supply Voltage3.3V DC
Operating Current13 - 26 mA
Standby Current10 - 13 mA
Sleep Current< 80 µA
Peak Current< 30 mA
Max Data Rate (SPI)10 Mbps
Operating Temperature-20°C to +80°C
PCB Dimensions (L x W)60 mm x 40 mm

Frequently Asked Questions

What is the operating voltage for this RC522 module, and can it be used with 5V Arduino boards?

The module operates strictly at 3.3V DC. To interface with a 5V Arduino (Uno, Mega, etc.), you must use a logic level converter for the SPI lines (SCK, MOSI, MISO, SS) to avoid damaging the RC522 IC. The power supply must also be regulated to 3.3V.

Which RFID cards and tags are compatible with this reader?

The module is compatible with ISO14443A standard 13.56MHz cards. It is commonly used with MIFARE Classic 1K (S50) and 4K (S70) cards and key fobs. It does not support other frequencies like 125kHz (EM4100) or newer standards like NFC Type 2/4 (NTAG).

How do I connect this module to a microcontroller like an Arduino or ESP32?

Connect via the SPI interface. Pin connections are: VCC to 3.3V, GND to GND, RST to a digital pin, SDA/SS to the SPI slave select pin (e.g., D10 on Arduino), SCK to SPI clock (D13), MOSI to master-out (D11), and MISO to master-in (D12). Use libraries like MFRC522 for Arduino.

What is the typical maximum read distance, and what factors affect it?

The typical maximum read distance is approximately 60mm (6cm) under ideal conditions with a standard card. Distance can be reduced by antenna misalignment, nearby metal objects, or electromagnetic interference. Using a larger external antenna can potentially increase the range.

Does this module support writing data to RFID cards?

Yes, the RC522 IC supports both reading from and writing to compatible RFID cards. You can write data to the user memory blocks of MIFARE Classic cards, following the authentication and sector trailer protocols defined by the MIFARE standard.

Package Includes

  • 1 x RC522 RFID Card Reader Module

Additional Information

Weight 0.07 kg
Dimensions 6 × 4 cm