Connect Blynk via WiFi and switch to Ethernet if WiFi is disconnected

vshymanskyy · June 28, 2023, 3:11pm

Check out this:

blynkkk/blynk-library/blob/master/examples/Boards_ArduinoClient/Arduino_MKR1400_GSM_ETH/Arduino_MKR1400_GSM_ETH.ino

/*************************************************************
  Blynk is a platform with iOS and Android apps to control
  ESP32, Arduino, Raspberry Pi and the likes over the Internet.
  You can easily build mobile and web interfaces for any
  projects by simply dragging and dropping widgets.

    Downloads, docs, tutorials: https://www.blynk.io
    Sketch generator:           https://examples.blynk.cc
    Blynk community:            https://community.blynk.cc
    Follow us:                  https://www.fb.com/blynkapp
                                https://twitter.com/blynk_app

  Blynk library is licensed under MIT license
  This example code is in public domain.
 *************************************************************
  This sketch shows how to use multiple connectivity options
  at the same time:
    - Arduino MKR1400 GSM module provides GPRS
    - Arduino MKR ETH shield provides Ethernet
  Using a standard Client interface is a convenient way to integrate

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You can do the same for ESP32 + W5500 Ethernet