Andreas

when you reduce the frequency, `display()` and especially the SPI transfer takes more time to run which may cause the WDT to kick in or the ESP to crash. Keep...

Not sure what it should show. Can you draw a white line from (0,0) to (39,39) ? Is this a static error? If not, please make a video.

> Has copyBuffer been added as well? yep, has been merged

Hi, `copybuffer()` was just recently added to the PxMatrix library. It looks like you're using an older version of the code that has no `copybuffer()` in it. You may try...

Can you please run the pattern test example and/or this https://github.com/xsrf/HUB75Debug/blob/master/src/hub75debug.cpp ?

I guess it may use a shiftregister with different A-D pinout. Can you note down the ICs used on the panel?

You may try https://github.com/xsrf/PxMatrix/tree/shiftreg-binary with `SHIFTREG_ABC_BIN_DE` which is not yet merged into PxMatrix. It should work with 1/10 scanning if the first 8 rows are connected to the first SM5266...

please use `display.displayTestPixel(20);` instead of `display.display()` in your code and post a video to show how the pattern looks like.

not sure if a pattern exists for that... @2dom ?

Thx, but please keep it 😊 However, I wouldn't mind if you could add some visuals of the different patterns to the readme some time 😉