RFID module RC522 Kit 13.56Mhz 6cm with Tags S50

:COM05045
€3.98
Tax included

The RFID Module is based on the MFRC522 chip and is used in wireless communication at a radio frequency of 13.56 MHz

Quantity

If you have any questions on this product please feel free to contact us.

*Disclaimer: The images are merely illustrative.

If you have any questions on this product please feel free to contact us.

*Disclaimer: The images are merely illustrative.

Main Features:


● High-quality FR-4 and plastic material, very durable
● Simple and easy
● Working current: DC 3.3V / 13 - 25mA
● Idle current: DC 3.3V / 10 - 13mA
● Sleep current: less than 80uA
● Peak current: less than 50mA
● Working frequency: 13.56MHz
● Support cards: MIFARE1 S50, MIFARE1 S70, MIFARE Ultralight, MIFARE Pro etc.
● Application: various electronic products and DIY projects

Connections:

  Connections

Sample code:

// Programa : RFID - Controle de acesso / cancela

#include <SPI.h>
#include <MFRC522.h>
#include <Servo.h> 
 
Servo microservo9g;

#define SS_PIN 10
#define RST_PIN 9
// Definicoes pino modulo RC522
MFRC522 mfrc522(SS_PIN, RST_PIN); 

// Leds indicadores acesso concedido ou negado
int led_concedido = 5;
int led_negado = 6;

char st[20];

void setup() 
{
  pinMode(led_concedido, OUTPUT);
  pinMode(led_negado, OUTPUT);
  // Define que o servo esta ligado a porta digital 3
  microservo9g.attach(3);
  // Move o servo para a posicao inicial (cancela fechada)
  microservo9g.write(90);
  // Inicia a serial
  Serial.begin(9600);
  // Inicia  SPI bus
  SPI.begin();
  // Inicia MFRC522
  mfrc522.PCD_Init(); 
  // Mensagens iniciais no serial monitor
  Serial.println("Aproxime o seu cartao do leitor...");
  Serial.println();
}

void loop() 
{
  // Aguarda a aproximacao do cartao
  if ( ! mfrc522.PICC_IsNewCardPresent()) 
  {
    return;
  }
  // Seleciona um dos cartoes
  if ( ! mfrc522.PICC_ReadCardSerial()) 
  {
    return;
  }
  // Mostra UID na serial
  Serial.print("UID da tag :");
  String conteudo= "";
  byte letra;
  for (byte i = 0; i < mfrc522.uid.size; i++) 
  {
     Serial.print(mfrc522.uid.uidByte[i] < 0x10 ? " 0" : " ");
     Serial.print(mfrc522.uid.uidByte[i], HEX);
     conteudo.concat(String(mfrc522.uid.uidByte[i] < 0x10 ? " 0" : " "));
     conteudo.concat(String(mfrc522.uid.uidByte[i], HEX));
  }
  Serial.println();
  Serial.print("Mensagem : ");
  conteudo.toUpperCase();
  
  // Testa se o cartao1 foi lido
  if (conteudo.substring(1) == "D8 4B 12 22")
  {
    // Levanta a cancela e acende o led verde
    microservo9g.write(-90);
    digitalWrite(led_concedido, HIGH);
    Serial.println("Cartao1 - Acesso concedido!");
    Serial.println();
    delay(3000);
    microservo9g.write(90);
    digitalWrite(led_concedido, LOW);
    }
    
  // Testa se o cartao2 foi lido
  if (conteudo.substring(1) == "87 4B DC 8A")
  {
    Serial.println("Cartao2 - Acesso negado !!");
    Serial.println();
    // Pisca o led vermelho
    for (int i= 1; i<5 ; i++)
    {
      digitalWrite(led_negado, HIGH);
      delay(200);
      digitalWrite(led_negado, LOW);
      delay(200);
    }
  }
  delay(1000);
}

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