WS2814 Strip only reacts after reboot

[raven-2014]

What happened?

The 5 meter strip does not react to changes in color settings via the UI.
When powered on, it displays random colors, somewhat related to the color settings in the UI prior to repowering the device (i.e. color setting to green results in mostly green LEDs but a lot of LEDs with other colors - yellowish or white, at the beginning and at the end of the strip)

Strip: https://www.aliexpress.com/item/1005004794429155.html?spm=a2g0o.order_detail.order_detail_item.3.4b346368em6Sdq
Power Suppply: Meanwell 200W 24V
Board: Quin-LED Dig Uno with ESP8266 d1 mini
LED Setting: SK6812/WS2814 RGBW - BRG - Swap W&G
power connected at both ends of the strip
length of datacable between controller and strip < 1 meter

To Reproduce Bug

power up the controller and attempt to change color settings via UI

Expected Behavior

Color Changes as requested via the UI

Install Method

Binary from WLED.me

What version of WLED?

WLED 0.15.0 build 2412100

Which microcontroller/board are you seeing the problem on?

ESP8266

Relevant log/trace output

Anything else?

I already tested with another Board and also with another strip (same model, same length) - problem persists.
When reducing the number of LEDs in LED Config, it is somewhat reflected only after a reboot of the device - but not exactly.

I also used the very same controller with a different model of an SK6812 strip (though only 2 meter long) - this worked perfectly.
Also tried to set "Skip first LED" to > 0 -- does not correct the issue.

So it seems to be an issue with this specific strip model (.. or the length of the strip??)

Code of Conduct

• I agree to follow this project's Code of Conduct

[DedeHai]

check your wiring, maybe change data resistor value. SK6812 work fine, so not a WLED issue.
Please use WLED forum or Discord for help and support questions.

[raven-2014]

I actually found a solution in the discourse group. The problem is indeed related to the resistor. I inserted 2 meter of data cable as an initial test ... and bam .... everything started working. As a final solution, I will increase the resistor value.

https://wled.discourse.group/t/issues-controlling-ws2814-with-esp32-signal-unstable-and-flickering/14102