Arduino Uno WiFI Rev2 Connection error

Official Hardware Classic UNO WiFi Rev2
3

First you need to install the Arduino megaAVR Boards package:

  1. Select Tools > Board > Boards Manager from the Arduino IDE's menus.
  2. Wait for downloads to finish
  3. Scroll down through the available packages list until you see "Arduino megaAVR Boards". Click on it.
  4. Click the Install button.
  5. Wait for the installation to finish. If you are prompted about the installation of the driver, approve it.
  6. Click the Close button.

dbford:
The "Open Updater sketch" doesn't load.

This could be caused by not having the WiFiNINA library installed. You can install it like this:

  1. Select Sketch > Include Library > Manage Libraries... from the Arduino IDE's menus.
  2. Wait for download to finish.
  3. In the "Filter your search..." field, type "wifinina". Press Enter.
  4. Find "WiFiNINA by Arduino" in the search results and click on it.
  5. Click the Install button.
  6. Wait for the installation to finish.
  7. Click the Close button.

Now you can give the firmware update process a try if you like:

  1. Select File > Examples > WiFiNINA > Tools > FirmwareUpdater from the Arduino IDE's menus.
  2. Select Tools > Board > Arduino Uno WiFi Rev2 from the Arduino IDE's menus.
  3. Select the port marked as "Arduino Uno WiFi Rev2" from the Arduino IDE's Tools > Port menu.
  4. Select Sketch > Upload from the Arduino IDE's menus.
  5. Wait for the upload to finish successfully
  6. Select Tools > WiFi101 / WiFiNINA Firmware Updater from the Arduino IDE's menus.
  7. Select the port of your Uno WiFi Rev2 from the ports list in the "WiFi101 / WiFiNINA Firmware Updater" window.
  8. From the "2. Update Firmware" menu, select "NINA Firmware (1.2.2) (Arduino Uno WiFi Rev2)".
  9. Click the Update Firmware button.
  10. Wait for the firmware update process to finish.
  11. Click the OK button.
  12. Close the "WiFi101 / WiFiNINA Firmware Updater" window
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