2021-10-28, 11:50 PM
I thought you had uploaded your sd card image at first.. if you can do that I could verify it.
Otherwise, I think the issue maybe wiring, or a separate program accessing the port still. Can you show a picture of the wiring used? Can you try switching tx and rx?
Otherwise, I think the issue maybe wiring, or a separate program accessing the port still. Can you show a picture of the wiring used? Can you try switching tx and rx?