Repository navigation
Since FW 0.15.1 an LED strip is flashing #4805
Description
Activity
English, please.
- changed the title
[-]Seit FW 15.01 blinkt ein LED Strip[/-][+]Since FW 15.01 an LED strip is flashing[/+]on Aug 2, 2025 - changed the title
[-]Since FW 15.01 an LED strip is flashing[/-][+]Since FW 0.15.1 an LED strip is flashing[/+]on Aug 2, 2025 - Sorry, chanced.…Am 02.08.2025 um 11:59 schrieb Blaž Kristan ***@***.***>: blazoncek left a comment (wled/WLED#4805) <#4805 (comment)> English, please. — Reply to this email directly, view it on GitHub <#4805 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AJHFRQB7YZ676OI34G5RCML3LSDZTAVCNFSM6AAAAACC6QPPEOVHI2DSMVQWIX3LMV43OSLTON2WKQ3PNVWWK3TUHMZTCNBWGQYDEOBXGQ>. You are receiving this because you authored the thread.
Did you enable "Use parallel I2S"? If not, do it, it may help.
Unfortunately I can't find this setting.
I've got the same issue. I've got 4 segments, and (I think) two of them are flickering.
I2S parallel is enabled (@hardl1 you can find this setting in Config > LED Preferences, just below the memory usage)
Reverting to 0.15.0 "fixes" the issue.
@BerendWouters, not by me...
@BerendWouters, not by me...
It's introduced in 0.15.1, I think :)
That's right, I updated again to 0.15.1, the field is there, it's enabled, but it still flashes.
What is that flicker like? just single LEDs or the whole strip
and what is you hardware setup? ESP32 with or without levelshifter (which shifter).The entire strip is flashing. I can't comment on the level shifter, as I bought the device ready-made.
Could anyone experiencing this issue please post their cfg.json file? I haven't been able to replicate it locally, but I have a suspicion it might be related to exact LED strip lengths.
How do I do that?
I'm back on 0.15.0, but I can change that.35 remaining items
For me too, version 0.15.2 is worse than version 0.15.1.
One strip is a solid turquoise, the other flashes constantly in all colors.Back to 0.14.4 it's almost ok (brief flashing every few minutes)
My esp32 wroom boards are now working correctly with 0.15.2. I also sended the device logs from the new pop-up.
I spoke too fast. The problem still happens, also with 0.15.3
I can always reproduce it if I go from "Twinkleup" to "Waterfall Rainbow"
Version 0.15.3 behaves like 0.15.2; one stripe is solid turquoise, the other constantly cycles through all solid colors. In the browser's Peek view, only solid turquoise is visible.
I think this confirms my previous suspicions that refactoring done in NeoPixelBus 2.8.1 broke something
@marmurek have you raised an issue with NeoPixelBus? If not, please do so.
And if you haven't already try 4 step cadence set-up if it changes anything. Use#define NPB_CONF_4STEP_CADENCEor-D NPB_CONF_4STEP_CADENCEduring compile.@hardl1 what type of levelshifter are you using?
edit: just saw you already said you do not know whats in the controller. I am trying to narrow down how the ever so slight differences between version could cause this. How long is the wire between the controller and the first LED and what kind of cable is that?
@ DedeHai Thank you for your willingness to help. I won't be home over the holidays to check the cables. As far as I remember, the cable from the WLED to the first LED is about 1 meter long.
Hey! This issue has been open for quite some time without any new comments now. It will be closed automatically in a week if no further activity occurs.
Thank you for using WLED! ✨The issue is still valid
Reacted by kopierschnitteA "as good as it gets" fix is in 16.0, proper fix needs a full rewrite of all drivers which will take much more time, I do have a proof of concept.
Reacted by Saninn Salas DiazHey! This issue has been open for quite some time without any new comments now. It will be closed automatically in a week if no further activity occurs.
Thank you for using WLED! ✨
What happened?
Two LED strips WS2812B with 300 LEDs are connected to GPO 16 + 02 on WLED and work without problems.
To Reproduce Bug
It worked fine with firmware 0.15.0, but since 0.15.1, a stripe has been flashing every 10-30 seconds.
After resetting to 0.15.0, the flashing stopped.
Expected Behavior
No blinking, just unilight.
Install Method
Binary from WLED.me
What version of WLED?
WLED 0.15.1 (Build 2507300)
Which microcontroller/board are you seeing the problem on?
ESP32
Relevant log/trace output
Anything else?
No response
Code of Conduct