as anyone successfully flashed Open thread on a -nrf52840 dongle ?
→ I am struggling to find the right firmware, I don’t understand wich one to choose on the Nordic SDK.
I couldn’t find the information but is HA compatible with this dongle ?
The OpenThread Border Router add-on can pretty much talk to any OpenThread RCP firmware. There is a protocol version, but it isn’t as strict as with other network protocols (as in, you can use a stick with a firmware several years old and it will still work). So any recent OpenThread RCP firmware should just work.