Připojení k Wi-fi a OLED

Zobrazení stavu připojení k Wi-fi na  displeji OLED SSD1306 z ebay

/*
  2017_10_17
  Author: Makerbro + mhr2017
  Platforms: ESP8266
  Language: C++
  File: HelloOLED.ino
  ------------------------------------------------------------------------
  Description: 
  Demo for OLED display showcasing writing text to the screen.
  ------------------------------------------------------------------------
  Please consider buying products from ACROBOTIC to help fund future
  Open-Source projects like this! We'll always put our best effort in every
  project, and release all our design files and code for you to use. 
  https://acrobotic.com/
  ------------------------------------------------------------------------
  License:
  Released under the MIT license. Please check LICENSE.txt for more
  information.  All text above must be included in any redistribution. 
*/
#include <Wire.h>
#include <ACROBOTIC_SSD1306.h>
#include <ESP8266WiFi.h>

const char* ssid     = "Brno4";
const char* password = "*****";

void setup()
{
  Wire.begin();  
  oled.init();                      // Initialze SSD1306 OLED display
  oled.clearDisplay();              // Clear screen 

  oled.setTextXY(1,0);              // Set cursor position, start of line 1
  oled.putString("Wi-Fi:");
  WiFi.begin(ssid, password);
  while (WiFi.status() != WL_CONNECTED) {
     delay(500);
       oled.putString(".");
  }


  oled.setTextXY(4,0);              // Set cursor position, start of line 4
  oled.putString("PRIPOJENO");   

      
}

void loop()
{
}