[editor]

New, pre-assembled board came in. Testing, I see the exact same issue with sync mode (only when using D9 power) and the scrolling happens in both sync and overlay.

I purchased the Uno fresh for this board, but two boards in a row can’t be coincidence. I wonder: might it be at the software level? My first guess was display so I’ll try that again.

[editor]

I’m in New York. I’ve got a replacement board on the way (this time assembled and tested, thank you!). In the meantime, I’ll check the solder points again on this bad boy.

[editor]

Thanks for taking the time to reply. I apologize about the privacy settings, I’ve since changed them.

I was thinking it was some sort of sync issue, which from other threads suggests that maybe I got a resister wrong or something. Thank you for taking a look when you can.

Toward the end of the video, you can see where I put the board from Overlay into Sync mode. It appears to be vertically synced for a second and then goes a little haywire.

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