RFID reader module MFRC-522

Description

RFID reader module MFRC-522, RFID reader module MFRC-522.

RFID reader module MFRC-522

• Working voltage: DC 3.3V
• Working current: 13-26mA
• No-load current: 10-13mA
• Sleep current: <80uA
• Peak current: <30mA
• Working frequency: 13.56MHz
• Supported card types: S50, S70, UltraLight, Pro, Desfire
• Module size: 40mm × 60mm
• Working temperature: -20 °C – 80 °C
• Permissible humidity: 5% – 95%
• Permissible humidity:

Permissible humidity:

• Permissible humidity:
• Permissible humidity:
• Permissible humidity:
• Permissible humidity:
• Permissible humidity:

Connecting MFRC-522 to Arduino

Scheme of connecting the module to Arduino UNO:

Sketch, which will read the UID (unique identification number) from the RFID tag and output to the Arduino serial port will look like this:

// Connecting Libraries

#include <SPI.h>

#include <MFRC522.h>

// connection constants of contacts SS and RST

#define RST_PIN 9

#connection constants of contacts SS and RST

#define RST_PIN 10

// connection constants of contacts SS and RST

#define RST_PIN, connection constants of contacts SS and RST

#define RST_PIN // connection constants of contacts SS and RST

#define RST_PIN.

connection constants of contacts SS and RST

#define RST_PIN // connection constants of contacts SS and RST

#define RST_PIN // connection constants of contacts SS and RST

#define RST_PIN // connection constants of contacts SS and RST

#define RST_PIN

// чтение карты

if ( ! mfrc522.PICC_ReadCardSerial())

return;

// показать результат чтения UID и тип метки

Serial.print(F("Card UID:"));

dump_byte_array(mfrc522.uid.uidByte, mfrc522.uid.size);

Serial.println();

Serial.print(F("PICC type: "));

byte piccType = mfrc522.PICC_GetType(mfrc522.uid.sak);

Serial.println(mfrc522.PICC_GetTypeName(piccType));

delay(2000);

}

// чтение карты

if ( ! mfrc522.PICC_ReadCardSerial())

return;, чтение карты

if ( ! mfrc522.PICC_ReadCardSerial())

return; 0; i < bufferSize; i++)

{

Serial.print(buffer[i] < 0x10 ? " 0" : " ");

Serial.print(buffer[i], чтение карты

if ( ! mfrc522.PICC_ReadCardSerial())

return;

чтение карты if ( ! mfrc522.PICC_ReadCardSerial()) return;

When a card is presented to the reader, information about the tag will be output to the serial port: