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How to use USB in nRF52840 Dongle as UART?

Kubek

Hi,

I want to develop simple app that receives data via BLE and send it through UART so I could gather them to file or draw a real-time chart in SerialPlot.

As far as I know, the dongle doesn't have debugger that's used in "NRF_LOG" functions' family and UART RX/TX pins aren't connected anywhere outside.

Anyway, there must be some way (nRF Connect programs the dongle somehow). How to do this in my application? Maybe there's some example that I didn't find?

Or maybe some crazy idea - what if I soldered UART's RX/TX to USB's RX/TX?

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  • 0

    Hi

    Please check out this thread, which has quite a few suggestions on how you can use the nRF52 Dongle as a serial port.

    Best regards,

    Simon

  • 0 in reply to Simonr

    I tried it on Windows 10 - it's just a one big trouble generator, so I tried to do this on Ubuntu 20.04.



    Once I tried to:

    cmake -G Ninja .. 

    An error occurs:

    So I tried to install Ninja (because some Stack Overflow thread claimed that might be reason):

    sudo apt install ninja-build

    After this, I tried again to cmake:

    cmake -G Ninja ..

    But yet another complex error occured:

    What might be the reason? I don't want to randomly follow each possible forum's tips, because I'm under impression it's gonna just mix everything up. Anyway I tried once, and it didn't help. I thought everything is gonna work fine if only I had followed the steps.

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  • 0 in reply to Simonr

    I tried it on Windows 10 - it's just a one big trouble generator, so I tried to do this on Ubuntu 20.04.



    Once I tried to:

    cmake -G Ninja .. 

    An error occurs:

    So I tried to install Ninja (because some Stack Overflow thread claimed that might be reason):

    sudo apt install ninja-build

    After this, I tried again to cmake:

    cmake -G Ninja ..

    But yet another complex error occured:

    What might be the reason? I don't want to randomly follow each possible forum's tips, because I'm under impression it's gonna just mix everything up. Anyway I tried once, and it didn't help. I thought everything is gonna work fine if only I had followed the steps.

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