Save Multi RFID Reader data, read-delete eeprom data over serial

multi rdm6300 + esp32 eeprom save

/*
   Multi RFID Reader - EEPROM Temporary Save Data
   ArtF4

*/

#include "EEPROM.h"

String incoming = "";   // for incoming serial string data
String key = "";   // for incoming serial string data

// the current address in the EEPROM (i.e. which byte
// we're going to write to next)
int address = 100;
int baslangic = 0;
int bitis = 0;
char data1;
char data2;
String newtag;
String newtag2;
void setup()
{
  Serial.begin(115200);
  Serial2.begin(9600, SERIAL_8N1, 22, 4);
  Serial1.begin(9600, SERIAL_8N1, 23, 5);


  if (!EEPROM.begin(1000)) {
    Serial.println("Failed to initialise EEPROM");
    Serial.println("Restarting...");
    delay(1000);
    ESP.restart();
  }
  Serial.println("sistembasladi");
}
void loop()
{

  newtag = "";
  newtag2 = "";
  while (Serial2.available() > 0) {

    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);
    iniskayit(decimal_answer);
    delay(500);
    Serial2.flush();

  }
  while (Serial1.available() > 0) {
    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);

    biniskayit(decimal_answer2);
    delay(500);
    Serial1.flush();
  }
  if (Serial.available() > 0) {
    incoming = Serial.readString();

    if (incoming == "bosalt") {
      bosalt();
    }
    if (incoming == "binen") {
      binen();
    }
    if (incoming == "inen") {
      inen();
    }
  }
}

void biniskayit(unsigned long rfid) {
  int tip1 = 100;
  // Serial.println("Rfid ye yazılıyor binis");

  while ( tip1 <= 200) // eğer a değeri 50 küçük ise while çalışsın.
  {
    //Serial.println(baslangic);
    //Serial.println(rfid);
    if (EEPROM.readULong(tip1) == rfid)
    {
      // Serial.println("binis zaten var");
      delay(50);
      break;
    }
    //Add one to each cell in the EEPROM
    if (EEPROM.readULong(tip1) == 0)
    {
      EEPROM.writeULong(tip1, rfid);
      EEPROM.commit();
      //Serial.println("binis olarak yazildi yoktu");
      // buzzer kodu
      delay(50);
      break;
    }
    tip1 += sizeof(unsigned long);
  }
}

void iniskayit(unsigned long rfid) {

  int tip2 = 200;
  // Serial.println("Rfid ye yazılıyor inis");

  while ( tip2 <= 300) // eğer a değeri 50 küçük ise while çalışsın.
  {
    //Serial.println(baslangic);
    //Serial.println(rfid);
    if (EEPROM.readULong(tip2) == rfid)
    {
      // Serial.println("zaten var");
      delay(50);
      break;
    }
    //Add one to each cell in the EEPROM
    if (EEPROM.readULong(tip2) == 0)
    {

      EEPROM.writeULong(tip2, rfid);
      EEPROM.commit();
      delay(50);
      break;
      // buzzer kodu
    }
    tip2 += sizeof(unsigned long);
  }

}
void binen() {

  key = "binen";
  int tip1 = 100;

  while ( tip1 <= 200)
  {
    //Add one to each cell in the EEPROM
    if (EEPROM.readULong(tip1))
    {
      key += "," + String(EEPROM.readULong(tip1));
    }
    else
    {
      // Serial.println("okuma bitti");

      break;
    }
    tip1 += sizeof(unsigned long);
  }
  Serial.println(key);
}

void inen() {

  key = "inen";
  int tip2 = 200;

  while ( tip2 <= 300)
  {
    if (EEPROM.readULong(tip2))
    {
      key += "," + String(EEPROM.readULong(tip2));
    }
    else
    {
      // Serial.println("okuma bitti");
      break;
    }
    tip2 += sizeof(unsigned long);
  }
  Serial.println(key);
}

void bosalt() {
  int a = 100;
  while ( a <= 300) // eğer a değeri 50 küçük ise while çalışsın.
  {
    if (EEPROM.readULong(a) != 0)
    {
      EEPROM.writeULong(a, 0);
      EEPROM.commit();
      //   Serial.println("silindi");
      delay(30);
    }
    a += sizeof(unsigned long);
  }
  Serial.println("ok");
}