Animation function for LCD 1602 connected to ESP8266 (arduino) written in C/C++

LCD16x2 Wifi animate.ino

#include <ESP8266WiFi.h>
#include <LiquidCrystal_I2C.h>
#include <Wire.h> //I2C communication
#define LCD_DISPLAY_ADDRESS 0x27
#define AP_SSID "wifiAP"
#define AP_PASSWORD "password"

LiquidCrystal_I2C lcd(LCD_DISPLAY_ADDRESS, 16, 2); // set the lcd address to 0x27 for a 16 chars and 2 line display

byte newCharWifiSending[][8] = 
{
  {
    B00000,
    B00000,
    B00000,
    B00000,
    B00000,
    B00000,
    B00100,
    B00000
  },
  {  
    B00000,
    B00000,
    B00000,
    B00100,
    B01010,
    B00000,
    B00100,
    B00000
    
  },
  {
    B00000,
    B01110,
    B10001,
    B00100,
    B01010,
    B00000,
    B00100,
    B00000
  },
  {
    B01110,
    B11111,
    B10001,
    B00100,
    B01010,
    B00000,
    B00100,
    B00000
  }
};



void setup()
{
  Wire.begin(4, 5); //Wire.begin(int sda, int scl) !!! labels GPIO4 and GPIO5 on EPS8266 are swaped at old esps!!!!
  lcd.begin();
  lcd.createChar(0, newCharWifiSending[0]); //First symbol
  lcd.setCursor(0, 1); //set position of symbol - 0 pos, 1 - row
  lcd.write(0);//show symbol at given position
  uint8_t attempt = 100;
  uint8_t waitSymbolCounter = 0;
  WiFi.begin(AP_SSID, AP_PASSWORD);
  while (WiFi.status() == WL_CONNECTED && attempt--)
  {
    delay(100);
    waitSymbolCounter = animateProgressSymbol(waitSymbolCounter);
  }
}

void loop()
{
}

uint8_t animateProgressSymbol(uint8_t waitSymbolCounter)
{
  lcd.createChar(0, newCharWifiSending[waitSymbolCounter]);

  if(waitSymbolCounter < sizeof(newCharWifiSending)/sizeof(newCharWifiSending[0]))//Array length
    waitSymbolCounter++;
  else
    waitSymbolCounter = 0;

  return waitSymbolCounter;
}