husszaf/rfid-arduino

rfid-arduino's Issues

RFID checks for security access

`/*

• Write personal data of a MIFARE RFID card using a RFID-RC522 reader
• Uses MFRC522 - Library to use ARDUINO RFID MODULE KIT 13.56 MHZ WITH TAGS SPI W AND R BY COOQROBOT.

• ---

•         MFRC522      Arduino       Arduino   Arduino    Arduino          Arduino
  

•         Reader/PCD   Uno/101       Mega      Nano v3    Leonardo/Micro   Pro Micro
  

• Signal Pin Pin Pin Pin Pin Pin

• ---

• RST/Reset RST 9 5 D9 RESET/ICSP-5 RST
• SPI SS SDA(SS) 10 53 D10 10 10
• SPI MOSI MOSI 11 / ICSP-4 51 D11 ICSP-4 16
• SPI MISO MISO 12 / ICSP-1 50 D12 ICSP-1 14
• SPI SCK SCK 13 / ICSP-3 52 D13 ICSP-3 15
• More pin layouts for other boards can be found here: https://github.com/miguelbalboa/rfid#pin-layout
• Hardware required:
• Arduino
• PCD (Proximity Coupling Device): NXP MFRC522 Contactless Reader IC
• PICC (Proximity Integrated Circuit Card): A card or tag using the ISO 14443A interface, eg Mifare or NTAG203.
• The reader can be found on eBay for around 5 dollars. Search for "mf-rc522" on ebay.com.
  */

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

#define RST_PIN 5 // Configurable, see typical pin layout above
#define SS_PIN 53 // Configurable, see typical pin layout above

MFRC522 mfrc522(SS_PIN, RST_PIN); // Create MFRC522 instance

void setup()
{
Serial.begin(9600); // Initiate a serial communication
SPI.begin(); // Initiate SPI bus
mfrc522.PCD_Init(); // Initiate MFRC522
Serial.println("Approximate your card to the reader...");
Serial.println();

}
void loop()
{
// Look for new cards
if ( ! mfrc522.PICC_IsNewCardPresent())
{
return;
}
// Select one of the cards
if ( ! mfrc522.PICC_ReadCardSerial())
{
return;
}
//Show UID on serial monitor
Serial.print("UID tag :");
String content= "";
byte letter;
for (byte i = 0; i < mfrc522.uid.size; i++)
{
Serial.print(mfrc522.uid.uidByte[i] < 0x10 ? " 0" : " ");
Serial.print(mfrc522.uid.uidByte[i], HEX);
content.concat(String(mfrc522.uid.uidByte[i] < 0x10 ? " 0" : " "));
content.concat(String(mfrc522.uid.uidByte[i], HEX));
}
Serial.println();
Serial.print("Message : ");
content.toUpperCase();
if (content.substring(1) == "DF 24 91 06") //change here the UID of the card/cards that you want to give access
{
Serial.println("Authorized access");
Serial.println();
delay(3000);
}

else {
Serial.println(" Access denied");
delay(3000);
}
}`