RFID example for CryptoShield

cryptoshield_rfid.ino

const int TAG_LENGTH = 13;
char tag[TAG_LENGTH + 2];
int index = 0;

void setup(){
  Serial.begin(9600); 
  memset(tag, 0, sizeof(tag));
}

void loop(){

  while(Serial.available()){

    int readByte = Serial.read(); 

    if (readByte == 0x02){
      // Begining byte, just skip it
    }
    else if (readByte == 0x03)
    {
      //done reading, 0x03 is the end byte of the tag
      delay(10);
      Serial.write(tag);
      //reset the buffer for the next tag
      index = 0;
      memset(tag, 0, sizeof(tag));
    }
    else {
      tag[index] = readByte;
      index += 1;
    }
  
  }

}