RFID Reader Module RC522 Serial Reader 13.56mhz IC Card RF Module

Description

RC522 RFID Reader Module Serial Reader RF 13.56mhz RF IC Card Module

Description

1 function

1) .MF RC522 is applied to the communication chips of the contactless card reader 13.56MHz, which is a member of the high level of integration – NXP. It is equipped with a low voltage, low cost, small size, and contactless card reader, a good choice for smart meters and portable devices development.

2) .MF RC522 with advanced modulation and fully integrated demodulation concept in all types of 13.56 MHz contactless communication protocols and passive protocols.
Supports multi-layer ISO14443A applications. Its internal communication transmitter part can control the reader antenna and ISO 14443A / MIFARE cards and telephone answering machines, no other circuit. The receiver part provides a robust and efficient demodulation and decoding circuit for processing ISO14443A compatible responder signals. The digital part manages ISO14443A framing and error detection (parity and CRC). Additionally, it supports the CRYPTO1 encryption algorithm used to verify MIFARE products. Supports high-speed contactless MIFRC522 MIFARE communication, bidirectional data transfer speed up to 424kbit/s.

3). As a new member of the highly integrated 13.56 MHz card reader chip family, MF RC522 shares many similarities with MF RC500 and MF RC530, but also has many other features and differences. It facilitates communication between the host and serial communication using a lower number of connections and can be based on different user needs to select a SPI, I2C, or serial UART (similar to RS232) mode, helping to reduce connections, reduce the size of the PCB board, and reduce costs.

2 Applications

1) MF RC522 applicable to all types based on the ISO / IEC 14443A standard and requires the application of cost-effective, compact size, high performance, and single communication without contact power.
2) Meter reading
3) Board unit
4) Public transport terminal
5) Portable device
6) Contactless Public Phones

3 Description

• Model: MIFARE RC522
• Sleep Current: <80uA
• Peak Current: <30mA
• Operating Frequency: 13,56 MHz
• Reading Range: 0 45mm
• Interface: UART TTL
• Baud Rate: 115200
• Data Transfer Speed: Maximum10Mbit / s

Physical Characteristics

• Dimensions: 50mm 50mm
• Operating Ambient Temperature: Celsius-20 80
• Storage Temperature: Celsius-40 85
• Humidity: Relative Humidity 5% 95%
• Compliance: ISO14443A standard compliance, supports Mifare1 S50 S70

Note
Try not to be positioned between the card reader and the reader when there are metallic objects present. To not affect the results.

Tutorial: How to Use the RC522 RFID Reader Module

The RC522 module is a serial RFID reader that allows reading and writing to 13.56MHz RFID tags. It is useful for security projects, controlled access, and digital archives.

What you need

• Arduino Uno or compatible
• 5V power supply cable
• 13.56MHz RFID tag
• RFID writer (optional)

Steps

1. 1. Connect the RC522 module to your Arduino following the connection map.
2. 2. Download and install the MFRC522 library from the Arduino library manager.
3. 3. Connect the VCC of the RC522 module to the 5V of the Arduino.
4. 4. Connect GND of the RC522 module to GND of the Arduino.
5. 5. Connect MOSI to MOSI, MISO to MISO, SCK to SCK, and SS to SS.
6. 6. Insert an RFID tag into the reader’s range.
7. 7. Run the example code to read the tag.
8. 8. Try writing a message to a tag using the RFID writer.

Example code

```
#include <MFRC522.h>

MFRC522 mfrc522(10, 9);

void setup() {
 Serial.begin(9600);
 mfrc522.PCD_Init();
}

void loop() {
 if (mfrc522.PICC_IsNewCardPresent()) {
 if (mfrc522.PICC_ReadCardSerial()) {
 Serial.print("UID tag: ");
 for (byte i = 0; i < mfrc522.uid.size; i++) {
 Serial.print(mfrc522.uid.uidByte[i] < 0x10 ? " 0" : " ");
 Serial.print(mfrc522.uid.uidByte[i], HEX);
 }
 Serial.println();
 }
 }
}
```

Mini project

Create a controlled access system with an RFID tag and an RC522 reader. Connect the RC522 module to the Arduino and write a code that accepts a specific tag to open a door.

Common mistakes

• Properly connect the pins of the RC522 module.
• Check the datasheet to ensure your RFID tag works at 13.56MHz.
• Ensure that the Arduino code is correct and compiles without errors.
• Check the stability of the 5V power supply.

Recommended accessories

• Arduino Uno
• RFID Tag 13.56MHz
• RFID Scraper
• 5V Power Supply Cable

Frequently asked questions

Which types of RFID tags work with this module?
The RC522 module supports RFID tags at 13.56MHz.

Can I use this module with an Arduino Mega?
Yes, but check pin compatibility.

Does the module require an external power supply?
No, the 5V power supply can be provided directly from the Arduino.