Replying to Avatar Keith Mukai

Really strange:

I have the correct screen now and it works fine. But since it came with the same breakout cable, I tried manually wiring the screen to the Pico and am getting the same garbled results!

I've quadruple checked the gpio pins and the breakout cable labels.

My only guess now is that the pinout labels for the breakout cable are wrong.
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Keith Mukai 2y ago

Learning more.

The breakout cable connection CAN work... it's just completely unpredictable and unreliable.

So new theory: the cables just make unreliable connections or are prone to interference. I moved the GND cable to a different GND and it seemed to work better, but could just be coincidence.

Now experimenting with slowing down the baud rate to see if that helps.

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Marcelinho 2y ago

Keith that is a great analysis 🙂

I learned yesterday that the displays are the identical hardware