README.md: add instructions for Over-the-Air update

Signed-off-by: Martin Dummer <martin.dummer@gmx.net>
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Martin Dummer 2022-08-28 00:41:05 +02:00
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@ -86,6 +86,15 @@ This can be achieved by editing the 'platformio.ini' file and add/change one or
* Navigate to Settings --> Network Settings and enter your WiFi credentials
* Currently you have to look at your router to determine the IP of the newly connected device
## Flashing an Update using "Over The Air" OTA Update
Once you have your OpenDTU running and connected to WLAN, you can do further updates through the web interface.
Navigate to Settings --> Firmware upgrade and press the browse button. Select the firmware file from your local computer.
You'll find the firmware file (after a successfull build process) under `.pio/build/generic/firmware.elf`.
After the successful upload, the OpenDTU immediately restarts into the new firmware.
## Available cases
* [https://www.thingiverse.com/thing:5435911](https://www.thingiverse.com/thing:5435911)