rdm 6300 multi rfid reader

gistfile1.txt

char data1;
char data2;
String newtag;
String newtag2;
void setup() {
  // Note the format for setting a serial port is as follows: Serial2.begin(baud-rate, protocol, RX pin, TX pin);
  Serial.begin(115200);
  Serial2.begin(9600, SERIAL_8N1, 22, 4);
  Serial1.begin(9600, SERIAL_8N1, 23, 5);

}

void loop() { //Choose Serial1 or Serial2 as required
  newtag = "";
  newtag2 = "";
  while (Serial2.available()) {

    for (int z = 0 ; z < 14 ; z++) // read the rest of the tag
    {
      data1 = Serial2.read();
      newtag += data1;
    }
    String msg = newtag.substring(5, 11);
    long decimal_answer = strtol(msg.c_str(), NULL, 16);
    Serial.println(msg);
    Serial.println(decimal_answer);
    Serial2.flush();

  }
  while (Serial1.available()) {
     for (int g = 0 ; g < 14 ; g++) // read the rest of the tag
    {
      data2 = Serial1.read();
      newtag2 += data2;
    }
    String msg2 = newtag2.substring(5, 11);
    long decimal_answer2 = strtol(msg2.c_str(), NULL, 16);
    Serial.println(msg2);
    Serial.println(decimal_answer2);
    Serial1.flush();
  }
}