otQoq

Signal source expansion board

Overview

This project underwent several revisions, and I still couldn't find the problem. Aside from my own reasons (being a bit lazy), the main reason for the late submission was a problem with the TFT screen interface circuit. I modified the circuit several times, but because it differed from the official version, I finally discovered the root cause was that the TFT interface circuit was drawn backwards. This caused my screen to not display any image, and even burned out one of the screens.
Anyway, I'm finally out of the "black box" (a metaphor for being stuck in a difficult situation). I'll gradually add more details to the project description later; there's still much to learn.

Design Files

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Update:2026-03-27 23:53:53

Please ignore the points
Just for points
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