Home Page Forums Raspberry Pi Shields celluariot library with 3G/4G&LTE Base HAT and Quectel UC20

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  • #73878
    nate
    Participant

    I’m trying to use the Sixfab Python library to send AT commands to a Quectel UC20 attached to the Sixfab 3G/4G&LTE Base HAT.

    The modem is working and powered on, and I can send AT commands using minicom via /dev/ttyUSB2:

    When I try to use the Python library, every AT command I send is failing with the following stacktrace:

    My test script consists of the following:

    Any ideas?

    #73894
    nate
    Participant

    I’ve also tried using pyserial directly, like this example: https://sixfab.com/gps-tracker-with-3g-4glte-shield/ and I’m seeing the same Broken Pipe error.

    #73897
    nate
    Participant

    The UC20 seems to require hardware flow control. I’ve created a PR to the Sixfab library to allow users to enable it if needed. https://github.com/sixfab/Sixfab_RPi_CellularIoT_App_Shield/pull/13

    #77368
    ensar
    Moderator

    Hi,

    Thank you for your interest and feedback.
    We will consider your pull request.

    Have a nice day.

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