• @Gordon You had all the time right :-) The problems were, as usual, on 2 sides ... between keyboard and chair :-) as well as Linux Mint 18.1 has problems with bluetooth. Now work both ways ... UART line and BLE (but BLE only on my corporate notebook with W10 ...pairing without any problems). Now I am in a state which fully satisfies me, maybe later I will strive for OTA FW upgrade (as PUCKJS) but at the moment I do not need it... it takes a lot of time. Now I use DAPLink as dev tool and it is very quick, handy for development. Now the time has come to also start studying things around nrf52832.
    At this point, I want also to thank you for your support and I remain a loyal member of your cute and inspiring "toys".


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