Hey folks,
i need your help, i am completely out of ideas.
Running effects like fire and rainbow swirl are working perfectly fine.
My problems are with screencapture:
1. 0.5 second delay between the screen switching and the LED reacting.
2. cant set anything else then
640x480 30fps with 8 time screen reduction before the LED go wild (random or complete dropouts / random color patterns)
3. flickering on darker colors
What i found out so far:
I can set the capture to fullHD and the preview image is just fine (with some lag) but the led turn out completly. How ever it is slightly broken and flickery on 640*480.
Neither turning of smoothing and/or turning down the refreshtime work in fighting the delay.
The LED part in the preview image is flashing pretty wild around the preview image.
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Does anyone have any ideas?
Is it possible that the raspberry is simply overwhelmed?
I dont see any usage spikes in htop.
The LED of my capture card is blinking yellowish/red but i havent founs out wether thats just a sign for capture or an error code.
I hope someone has an idea for me, i spend the last 12 hours building the hardwere and trying to figure this out.
My setup:
Raspberry 4b
Close to 5 meters - 270led Sk6812 on gpio 10
2*10 Amps powersupplies (2 LED segments with ground and data connected )
Set and controlled spidev.bufsiz=1024000
dtparam=audio=off
Baudrate is 5900000.
Ezcap capture card (i think its the 269) with updated firmware