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RFID RC522 Card Reader Module Kit

RFID RC522 Card Reader Module Kit

The RFID 13.56MHz RC522 RFID Module Kit is a compact and efficient solution for contactless communication and identification systems. Based on the MFRC522 chip, this module enables wireless data exchange using electromagnetic fields, making it ideal for applications such as access control, attendance systems, and secure authentication. With support for ISO 14443A/MIFARE protocols, this kit provides reliable and fast communication, along with essential accessories to help you get started بسهولة.

Package Includes:

  • 1 x RC522 RFID Card Reader Module
  • 1 x S50 RFID Card
  • 1 x S50 RFID Tag (Keychain)
  • 2 x Pin Headers (Straight & Right Angle)
RFID Module
19.95 AED 19.95 AED (Tax included)

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Features:

  • MFRC522 Chipset for reliable 13.56MHz RFID communication.
  • Supports ISO 14443A / MIFARE protocol.
  • Fast and stable contactless data transmission.
  • Compact and lightweight module design.
  • SPI interface for easy communication with microcontrollers.
  • Low power consumption with sleep mode support.
  • Includes RFID card and keychain tag for immediate use.
  • High security with unique UID identification.
  • Suitable for Arduino, ESP8266, ESP32, and other platforms.

Principle of Work:

The RC522 RFID module works by generating an electromagnetic field at 13.56MHz, which powers passive RFID tags and enables data exchange.

  • RF Field Generation: The module creates a radio-frequency field to activate RFID tags.
  • Tag Communication: Tags respond with their unique UID via modulation.
  • Data Processing: The MFRC522 chip decodes the received data.
  • Microcontroller Interface: Data is transferred via SPI to a controller for processing.

 

Applications:

  • Access control systems.
  • Attendance tracking systems.
  • Smart home security projects.
  • Contactless payment prototypes.
  • Inventory and asset tracking.

  

Pinout of the Module:

Working with STM32 and RC522 RFID reader: SPI based module – EmbeddedExpertIO

Pin Function Description
SDA (SS) SPI Chip Select Selects the RFID module
SCK SPI Clock Clock signal for SPI communication
MOSI SPI Data Input Master Out Slave In
MISO SPI Data Output Master In Slave Out
IRQ Interrupt Interrupt signal (optional)
GND Ground Common ground
RST Reset Resets the module
3.3V Power 3.3V supply (IMPORTANT: not 5V)

 

Circuit:RFID With Arduino Uno: RC522 Wiring and Code

  • Connect the module to your microcontroller (Arduino/ESP) using the SPI interface.
  • Ensure power supply is 3.3V only (do NOT use 5V).
  • Install the MFRC522 library in Arduino IDE.
  • Open example: ReadUID from the library.
  • Upload the code to your board.
  • Open Serial Monitor.
  • Place RFID card/tag near the module to read UID.

 

Code:

Basic Arduino Example (Read RFID UID):

#include <SPI.h>
#include <MFRC522.h>

#define SS_PIN 10
#define RST_PIN 9

MFRC522 rfid(SS_PIN, RST_PIN);

void setup() {
  Serial.begin(9600);
  SPI.begin();
  rfid.PCD_Init();
  Serial.println("Scan RFID card...");
}

void loop() {
  if (!rfid.PICC_IsNewCardPresent()) return;
  if (!rfid.PICC_ReadCardSerial()) return;

  Serial.print("UID: ");
  for (byte i = 0; i < rfid.uid.size; i++) {
    Serial.print(rfid.uid.uidByte[i], HEX);
    Serial.print(" ");
  }
  Serial.println();
}

 

 

Technical Details:

  • Operating Voltage: 3.3V
  • Operating Current: 13–26mA
  • Idle Current: 10–13mA
  • Sleep Current: <80µA
  • Peak Current: <50mA
  • Operating Frequency: 13.56MHz
  • Supported Cards: MIFARE S50, S70, Ultralight, Pro
  • Interface: SPI
  • Data Rate: Up to 10Mbit/s