Serial IO unexplainable behavior

[cjn566]

My issue isn't strictly related to this library, but it does have to do with the Heltec LoRa V3 board, and this is the best place I can think to ask about it. This board is integral to an art project I'm showing off in two weeks, so I'm a little desperate.

My project involves reading MIDI data from serial rx. I actually had this working well last summer, but I went to fix a bug and foolishly accepted a board definition update (which I think is causing my problem), and I was unsuccessful in reverting to a previous definition.

The behavior I'm getting is that my code is no longer seeing any MIDI data, but the serial monitor on my PC picks up some garbage whenever I press a key on the MIDI controller.

• I checked that there wasn't a short between TX and RX.
• Nothing about the physical setup or my code changed before and after the issue.
• I can successfully print from my code and see it on serial monitor.
• I stripped the code down to just the MIDI stuff, so this library is not the culprit.

Best I can guess is that serial input is being piped straight to the output and clearing the input buffer. ?.
I'd really appreciate either insight about the issue, or tips on how to revert to the old board definition.

[Velocet]

Since this seems to be related to a board update: have u checked other PRs in this repo? There were some PiN changes.
Have you tried a fresh install on another machine or a reinstall on your machine?
Create a new project and try to probe the pins for changes (just pull the pin or low). Do they even work?
Have you changed anything else? Maybe cable length?
Have an older firmware? Do they still work?