• OK, I think I got to the heart of the problem, SPI1 is working beautifully (I haven't tested with the SX library and all that, but I get data through MOSI now).

    Apparantly capacitors on the AI Thinker ESP32-A1S prevents us from using GPIOs 5, 18, 19 and 23 for SPI (according to this comment (Edit: may be incorrect, the comment is referring to a dev. kit using the same chip)).

    Thank you MaBe for your help!

    Edit: still having issues, posting a new question 🙂


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