Handles wifi connection in a separate thread in an esp32 to make wifi just work and enable focusing on the important stuff.

WifiConnectionHandlerEsp32.cpp

// Settings for Config.h
char* WIFI_SSID = "Your_WIFI_ssid";
char* WIFI_PW = "Your_WIFI_password";

// Main Code
int wifiConnectionTimeout = 10000;
ushort cycleDelayInMilliSeconds = 100;
const int wifiHandlerThreadStackSize = 10000;
unsigned long long wifiReconnectCounter = 0;
TaskHandle_t wifiConnectionHandlerThreadFunctionHandle;

void setup() { xTaskCreatePinnedToCore(wifiConnectionHandlerThreadFunction, "Wifi Connection Handling Thread", wifiHandlerThreadStackSize, NULL, 20, &wifiConnectionHandlerThreadFunctionHandle, 1); }

void wifiConnectionHandlerThreadFunction(void* params) {
  uint time;
  while (true) {
    if (!WiFi.isConnected()) {
      try {
        Serial.printf("Connecting to Wifi: %s\n", WIFI_SSID);
        WiFi.begin(WIFI_SSID, WIFI_PW);  // initial begin as workaround to some espressif library bug
        WiFi.disconnect();
        WiFi.begin(WIFI_SSID, WIFI_PW);
        WiFi.setHostname("Desklight (ESP32, Blynk)");
        time = 0;
        while (WiFi.status() != WL_CONNECTED) {
          if (time >= wifiConnectionTimeout || WiFi.isConnected()) break;
          delay(cycleDelayInMilliSeconds);
          time += cycleDelayInMilliSeconds;
        }
      } catch (const std::exception e) {
        Serial.printf("Error occured: %s\n", e.what());
      }
      if (WiFi.isConnected()) {
        Serial.printf("Connected to Wifi: %s\n", WIFI_SSID);
        wifiReconnectCounter = 0;
        flashLights(2, 50, 50);
      }
    }
    delay(1000);
    Serial.printf("Wifi Connection Handler Thread current stack size: %d , current Time: %d\n", wifiHandlerThreadStackSize - uxTaskGetStackHighWaterMark(NULL), xTaskGetTickCount());
  };
}

void WaitForWifi(uint cycleDelayInMilliSeconds) {
  while (WiFi.status() != WL_CONNECTED) {
    delay(cycleDelayInMilliSeconds);
  }
}