Hi guys, I have prepared a GitHub template with a configuration for over-the-air (OTA) firmware update from a level of GitHub workflow.

After a new push to a repo, the CI/CD pipeline is triggered that builds a new firmware and sends it with HTTP POST request to an OTA server running directly on ESP32. It takes ~3 minutes. Using that configuration in "matrix build" enables updating up to 256 devices at once.

The project is based on / uses:

- PlatformIO

- Arduino

- AsyncElegantOTA (for OTA server - we do not use the provided frontend)

- ESPAsyncWebServer (for a simple "Hello world" server)

- Husarnet (for direct access over the internet over NAT & firewall)

- GitHub Actions workflow definition

I hope it might be interesting for those of you who do sth with that cool WiFi chip :)