Particle Electron reads an RFID Tag, formats it as a string and then publishes it as RFIDident

ParticleElectronRFIDReadandPublish.ino

/*****************************************************************************
*  ParticleSoftSerial library (PSS_SimpleTest.ino)
*  Copyright (c) 2016 Free Software Foundation.  All right reserved.
*  Written by Andreas Rothenw�nder (aka ScruffR)
*
*  This sample shows sends data from Serial1 to ParticleSoftSerial(D2/D3)
*
*    Prerequisites:
*      import SparkIntervalTimer library (by Paul Kourany)
*      wire   Serial1 TX to D2
*             Serial1 RX to D3 (for sending ParticleSoftSerial to Serial1)
*
*    Due to relatively low interrupt priorities used, baudrates greater 31250
*    may be prone to data corruption, depending on over all system load.
*
*  This library is free software; you can redistribute it and/or
*  modify it under the terms of the GNU Lesser General Public
*  License as published by the Free Software Foundation; either
*  version 2.1 of the License, or (at your option) any later version.
*
*  This library is distributed in the hope that it will be useful,
*  but WITHOUT ANY WARRANTY; without even the implied warranty of
*  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
*  Lesser General Public License for more details.
*
*  You should have received a copy of the GNU Lesser General Public
*  License along with this library; if not, write to the Free Software
*  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
*****************************************************************************/
#include <ParticleSoftSerial.h>
#include "Particle.h"


#define RECEIVER SoftSer
#define PROTOCOL SERIAL_8N1

const uint32_t baud = 9600;

//#if (SYSTEM_VERSION >= 0x00060000)
//  SerialLogHandler logHandler;
//#endif

#define PSS_RX D3 // RX must be interrupt enabled (on Photon/Electron D0/A5 are not)
#define PSS_TX C5 //this pin isn't something we use, I couldn't find a null pin
ParticleSoftSerial SoftSer(PSS_RX, PSS_TX);
char CARDcurrent[4];

void setup()
{
  Serial.begin();
  Serial.printlnf("ready for data");
  RECEIVER.begin(baud, PROTOCOL); // but SoftSerial can ;-)
}

void loop()
{

int counter = 0;
unsigned long cardread = 0;
String cardpublish;

while (RECEIVER.available())
  {
      for (int cardident = 0; cardident < 5; cardident++) {
      counter = (RECEIVER.read());
      if (cardident > 0) Serial.print(int(counter), HEX);
      CARDcurrent[cardident-1] = counter;
      Serial.print(" ");
      }
      Serial.println("");
      cardread=int(CARDcurrent[0]);
      cardread=cardread << 8;
      cardread=cardread+ int(CARDcurrent[1]);
      cardread=cardread << 8;
      cardread=cardread+ int(CARDcurrent[2]);
      cardread=cardread << 8;
      cardread=cardread+ int(CARDcurrent[3]);
      Serial.println(cardread, HEX);
      bool success;
      success = Particle.publish("RFIDident", String(cardread, HEX), 0, PUBLIC);
      if (!success) {
      Serial.println("failedtopublish");  // get here if event publish did not work
      }

  }
    RECEIVER.flush();

    if (Particle.connected()) {
        Serial.println("Connected!");
      }
      delay(1000);
}