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New 64 x 64 panel - alternate groups of 16 rows displaying #1711

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bidmangler opened this issue Sep 29, 2024 · 2 comments
Open

New 64 x 64 panel - alternate groups of 16 rows displaying #1711

bidmangler opened this issue Sep 29, 2024 · 2 comments

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@bidmangler
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bidmangler commented Sep 29, 2024

Panel Problem
I'm hoping for some pointers about where to start troubleshooting.

Update: Solved. the E address line was on Pin 8 after all - I was just counting the pin numbers on the Hub75 connector wrong.

I'm working with these panels from a company called "Seengreat" - https://seengreat.com/wiki/74/rgb-matrix-p3-0-64x64 . I've also built a bunch of the level-shifting adapter boards from this project so I can use multiple chains. From the panel documentation, I've deduced that its ABCDE addressing - with E on Pin 4 of the Hub75 connector. I set the jumpers on the adapter board accordingly.

Just trying to run a basic demo at this stage with just one panel connected to chain 1 but get the problem you can see in the photo. I've tried different multiplexing options but no joy.

Any ideas? How would I be best to go about troubleshooting this? I did check all the info on the page - and looked for relevant issues but nothing jumps out at me I'm afraid.

Thanks folks!

@tidyhf
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tidyhf commented Jan 25, 2025

I'm having a similar issue, I have bridged E to 8 and also tried braiding E to 16 but both of them have this same result. If I use demo 10 I can see a tiny bit of light on the unlit sections.

@davemaster
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Panel Problem I'm hoping for some pointers about where to start troubleshooting.

Update: Solved. the E address line was on Pin 8 after all - I was just counting the pin numbers on the Hub75 connector wrong.

I'm working with these panels from a company called "Seengreat" - https://seengreat.com/wiki/74/rgb-matrix-p3-0-64x64 . I've also built a bunch of the level-shifting adapter boards from this project so I can use multiple chains. From the panel documentation, I've deduced that its ABCDE addressing - with E on Pin 4 of the Hub75 connector. I set the jumpers on the adapter board accordingly.

Just trying to run a basic demo at this stage with just one panel connected to chain 1 but get the problem you can see in the photo. I've tried different multiplexing options but no joy.

Any ideas? How would I be best to go about troubleshooting this? I did check all the info on the page - and looked for relevant issues but nothing jumps out at me I'm afraid.

Thanks folks!

Greetings,

You share an image, but not the command used to produce that image. Please, share the command, and a picture or BETTER, a video of output.

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