arduino 'updateSerial' was not declared in this scope hatası

kodumda bu hatayla karşılaşıyorum yardım ederseniz sevinirim.

kodum burada:

#include <TinyGPS++.h>

#include <Wire.h>

#include <SoftwareSerial.h>

#include<LiquidCrystal.h>

#include <MPU6050.h>

#define button1 9

#define button2 10

SoftwareSerial sim800l(7, 8);

MPU6050 sensor ;

int16_t ax, ay, az ;

int16_t gx, gy, gz ;

////////////  AYARLAR  /////////////

int bekle = 0 ;

int gyro_max = 80 ;

int gyro_min = 180 ;

int ivme_esik = 20000 ;

////////////  AYARLAR  /////////////

bool button_State;

bool button_State2;

static const int RXPin = 4, TXPin = 3;

static const uint32_t GPSBaud = 9600;

TinyGPSPlus gps;

int temp = 0, i;

SoftwareSerial ss(RXPin, TXPin);

String stringVal = "";

void setup() {

 Serial.begin(9600);

 Wire.begin ( );

 Serial.println ( "Sensor bekleniyor" );

 sensor.initialize ( );

 Serial.println (sensor.testConnection ( ) ? "Baglanti basarili :)" : "Baglanti basarisiz :(");

 delay (1000);

 pinMode(button1, INPUT_PULLUP);

 Serial.println ( "Sim ile haberlesme basliyor" );

 sim800l.begin(9600);

 pinMode(button2, INPUT_PULLUP);

 delay(1000);

 //Serial.println ( "Sinyal olculuyor deger max 31" );

  sim800l.println("AT+CSQ");

  updateSerial();

  //Serial.println ( "Sim bilgileri okunuyor" );

  sim800l.println("AT+CCID");

  updateSerial();

  sim800l.println("AT+CREG?");

  updateSerial();

  sim800l.println("AT+CBC");

  updateSerial();

  sim800l.println("AT+GSV");

  updateSerial();

  sim800l.println("AT+GSV");

  updateSerial();

  Serial.begin(9600);

  ss.begin(GPSBaud);

  delay(2000);

  gsm_init();

  Serial.println("AT+CNMI=2,2,0,0,0");

  delay(2000);

  delay(2000);

  temp = 0;

}

void loop()

{

 serialEvent();

 while (temp)

 {

  while (ss.available() > 0)

  {

   gps.encode(ss.read());

   if (gps.location.isUpdated())

   {

    temp = 0;

    digitalWrite(13, HIGH);

    tracking();

   }

   if (!temp)

    break;

  }

 }

 digitalWrite(13, LOW);

}

void serialEvent()

{

 while (Serial.available() > 0)

 {

  if (Serial.find("konum bul"))

  {

   temp = 1;

   break;

  }

  else

  {

   temp = 0;

  }

 }

}

void gsm_init()

{

 boolean at_flag = 1;

 while (at_flag)

 {

  Serial.println("AT");

  delay(1);

  while (Serial.available() > 0)

  {

   if (Serial.find("OK"))

    at_flag = 0;

  }

  delay(1000);

 }

 delay(1000);

 boolean echo_flag = 1;

 while (echo_flag)

 {

  Serial.println("ATE0");

  while (Serial.available() > 0)

  {

   if (Serial.find("OK"))

    echo_flag = 0;

  }

  delay(1000);

 }

 delay(1000);

 boolean net_flag = 1;

 while (net_flag)

 {

  Serial.println("AT+CPIN?");

  while (Serial.available() > 0)

  {

   if (Serial.find("+CPIN: hazır"))

    net_flag = 0;

  }

  delay(1000);

 }

}

void init_sms()

{

 Serial.println("AT+CMGF=1");

 delay(400);

 Serial.println("AT+CMGS=\"numaranı buraya yaz\"");

 delay(400);

}

void send_data(String message)

{

 Serial.print(message);

 delay(200);

}

void send_sms()

{

 Serial.write(26);

}

void tracking()

{

 init_sms();

 send_data("konum gönderiliyor:");

 Serial.println(" ");

 send_data("konumuz:");

 Serial.println(" ");

 Serial.print("enlem: ");

 Serial.print(gps.location.lat(), 6);

 Serial.print("\n boylam: ");

 Serial.println(gps.location.lng(), 6);

  Serial.print("https://www.google.com/maps/@");

 Serial.print(gps.location.lat(), 6);

 Serial.print(',');

 Serial.print(gps.location.lng(), 6);

 Serial.print(",14z");

 send_sms();

 delay(2000);

}

bu da hata kodu

Arduino:1.8.15 (Windows Store 1.8.49.0) (Windows 10), Kart:"Arduino Uno"

C:\Users\doruk\Desktop\Masaüstü\denmeme\denmeme.ino: In function 'void setup()':

denmeme:48:5: error: 'updateSerial' was not declared in this scope

C:\Users\doruk\Desktop\Masaüstü\denmeme\denmeme.ino:48:5: note: suggested alternative: 'HardwareSerial'

C:\Users\doruk\Desktop\Masaüstü\denmeme\denmeme.ino: In function 'void serialEvent()':

C:\Users\doruk\Desktop\Masaüstü\denmeme\denmeme.ino:98:32: warning: ISO C++ forbids converting a string constant to 'char*' [-Wwrite-strings]

C:\Users\doruk\Desktop\Masaüstü\denmeme\denmeme.ino: In function 'void gsm_init()':

C:\Users\doruk\Desktop\Masaüstü\denmeme\denmeme.ino:118:27: warning: ISO C++ forbids converting a string constant to 'char*' [-Wwrite-strings]

C:\Users\doruk\Desktop\Masaüstü\denmeme\denmeme.ino:131:27: warning: ISO C++ forbids converting a string constant to 'char*' [-Wwrite-strings]

C:\Users\doruk\Desktop\Masaüstü\denmeme\denmeme.ino:143:38: warning: ISO C++ forbids converting a string constant to 'char*' [-Wwrite-strings]

exit status 1

'updateSerial' was not declared in this scope

This report would have more information with

"Show verbose output during compilation"

option enabled in File -> Preferences.

sim800l kütüphanesi yok sanki ?

www.arduino.cc

Sim800L Library Revised - Arduino Reference

https://www.arduino.cc/reference/en/libraries/sim800l-library-revised/