#include <Wire.h>

#include <Adafruit_NFCShield_I2C.h>

 

#define IRQ   (2)

#define RESET (3)  // Not connected by default on the NFC Shield

 

//#define BlackTag 146150168253

//#define MetalTag 107238213236

//#define Tag 5999214236

//#define TagWired 9296A8FD

 

int Card1 = 0;

int Card2 = 0;

int Card3 = 0;

int Group = 0;

int GroupButton = 0;

 

 

String MetalTag= "107238213236";

String BlackTag="146150168253";

String Tag = "5999214236";

 

 

Adafruit_NFCShield_I2C nfc(IRQ, RESET);

String TagSwipe="";

void setup(void) {

  Serial.begin(115200);

  Serial.println("Hello!");

 

  nfc.begin();

 

  uint32_t versiondata = nfc.getFirmwareVersion();

  if (! versiondata) {

    Serial.print("Didn't find PN53x board");

    while (1); // halt

  }

 

  // Got ok data, print it out!

  Serial.print("Found chip PN5"); Serial.println((versiondata>>24) & 0xFF, HEX);

  Serial.print("Firmware ver. "); Serial.print((versiondata>>16) & 0xFF, DEC);

  Serial.print('.'); Serial.println((versiondata>>8) & 0xFF, DEC);

 

  // Set the max number of retry attempts to read from a card

  // This prevents us from waiting forever for a card, which is

  // the default behaviour of the PN532.

  nfc.setPassiveActivationRetries(0xFF);

 

  // configure board to read RFID tags

  nfc.SAMConfig();

   

  Serial.println("Waiting for an ISO14443A card");

}

 

void loop(void) {

  boolean success;

  uint8_t uid[] = { 0, 0, 0, 0, 0, 0, 0 };  // Buffer to store the returned UID

  uint8_t uidLength;                        // Length of the UID (4 or 7 bytes depending on ISO14443A card type)

  String str="";

 

  // Wait for an ISO14443A type cards (Mifare, etc.).  When one is found

  // 'uid' will be populated with the UID, and uidLength will indicate

  // if the uid is 4 bytes (Mifare Classic) or 7 bytes (Mifare Ultralight)

  success = nfc.readPassiveTargetID(PN532_MIFARE_ISO14443A, &uid[0], &uidLength);

 

  if (success) {

    Serial.println("Found a card!");

    Serial.print("UID Length: ");Serial.print(uidLength, DEC);Serial.println(" bytes");

    Serial.print("UID Value: ");

    for (uint8_t i=0; i < uidLength; i++)

    {

      Serial.print(" 0x");Serial.print(uid[i]);

      String uidTemp=String(uid[i]);

      str.concat(uidTemp);

    }

    Serial.println("");

    Serial.println(str);

    // Wait 1 second before continuing

    delay(1000);

  }

  else

  {

    // PN532 probably timed out waiting for a card

    Serial.println("Timed out waiting for a card");

  }

  {

 

int counter = 0;

 

  if (str.equals(Tag) == true){

    Serial.println("Tag"); Card1++;

 

  }else if (str.equals(MetalTag) == true){

    Serial.println("MetalTag"); Card2++;

 

  }else if (str.equals(BlackTag) == true){

    Serial.println("BlackTag"); Card3++;

  }

 

  GroupButton = 0;

 

if(GroupButton == 1){

if ( Card1>0) {Serial.print("Card1");}

if(Card2>0){Serial.print("Card2");}

if (Card3>0){Serial.print("Card3");}

}

else if (GroupButton == 0){

  Serial.print("Group Button not pressed");

 

} 

 

 

 delay (1000);

 

}

 

 

}