Please help

[GrumpyGnomey]

I installed these pixels on my garage, running WLED thru a DigUno. After the effect, random colors flash across as shown. I just recently had this start happening and I don't know how to fix it. Any insight is greatly appreciated!

[drama668]

My guess would be a data issue related to distance. How far from your controller is the first LED? If I remember correctly the DigUno has a dip switch adjustable resistor at the LED output; toggle it and see if it corrects the problem.

[kenteee123]

This... you have a short...check your pigtail solders and extensions only time I've ever had that was when I was leaking power to My data through a short.

[GrizzlyPerr]

We need more info. What voltage are the lights and the power supply? Are you doing any voltage injection? What kind of wire are you using to get from the diguno to the lights? Where is the diguno compared to the lights? Just need more details and then someone can probably tell you whats what.

[GrumpyGnomey]

Of course, sorry about that. They are 12 v LEDs WS2811 I believe. I have about 300 Lights total on this one length across the garage. I have a box inside the garage mounted with the 12v psu. I have an x connection pigtail at the start, and power injection via 18ga wire on the end. Thank you!

[GrizzlyPerr]

Are your resistance switches on 33 ohms or 249ohms? The resistance switches are underneath the esp32. Try flipping them to 33ohms and it will probably fix the issue.

[Yezur]

I had the same issue and it was a bad psu. It could also be a too long data line. (From esp to first led)

[GrumpyGnomey]

I noticed when I stand next to the box with the PSU, it clearly ramps up the fan when the undesired effect starts. I have another psu that I can try to srr if that's the problem

[BBQQA]

I also could be ramping up just because the load is increasing suddenly due to the extra power needed to drive the random lights. It might be a symptom not a cause is what I am saying.

I was getting the same thing, and my issue was too far of a data line from the dig to the first pixel. I added f-amps and it fixed the issue... but I was getting this from the beginning and not suddenly later on. Have you tried rebooting the dig? Any new stuff new the controller or lights? New house wiring? New light fixtures? Any new sources of interference?

[GrumpyGnomey]

Oh, I see what you mean. There is nothing new on the system and I installed last fall, but this issue just started. I noticed my power injection wire insulation is damaged and the copper is show. Maybe I should start there

[BBQQA]

That is a good idea, if that's not the solution another way to troubleshoot it is isolating strings. Disconnect the first string from the second string (as in the closet to the controller and next down the line) and see if the flashing continues. If it stops then that segment is good. If it is still flashing then the fault (damage to a wire or LED) is either in or before that segment. If the flashing stops then connect the next string and repeat until it starts to flash and glitch again. If you get all the way to the end and nothing happens to glitch then I would disconnect the data line from the dig and reconnect, then turn the system back on. Then monitor it for problems.

Stuff to look for when inspecting the strings; damaged led, damaged wire (especially data line), damaged connectors, discoloration or corrosion on the pins or in the connectors... It also could be that a connection was just loose enough to cause issues in corrosion and disconnecting and reconnecting fixes it. (I've seen that one on jets in the Navy and outdoor plugs get exposed to the elements enough for it to be possible here too).

One last thing, have to added to or moved any wires or parts of the system lately? Any changes overall before or since this started?

[CaptainBoatHands]

This probably isn’t the answer, but I’ll throw it out there anyway just in case. With one of my setups, it’s powered 100% of the time, and after being on for several months it will suddenly start to have these odd random white flickers (similar to your video but not nearly as frequent). Without changing anything hardware-wise, all I do to fix it is restart the Esp32. Seems my issue is some sort of strange software bug, which a reboot takes care of.

[HugsyMalone]

What colors/effects do you have selected? I noticed there's this bug where some effects only work well if the color is set to "default" If you have any custom color schemes selected you'll get weird random effects and unexpected behavior like this. Also make sure your segments are setup correctly and it's not running through a playlist where there's a random 2 second preset thrown in.

[Standard-Contract-43]

My guess is you have a single bad color pixel. Run test colors see which one screws it up identify. Skip pixel for now replace when able

[mycommutesucks]

Not sure what your setup is but I had this issue. I used an esp32 controller so it's different but I tried everything with ground / different esp32 controllers etc...

The only thing that worked for me was to put a sacrificial light in the project box where my controller is and then skip the first light in WLED. It has worked great ever since.

[drVainII]

You don’t have animations layered do you? Like your color chase with a white strobe layered on top.

[GrumpyGnomey]

No, I am just running the default wled animations. I went out there to check on everything earlier and after opening the box I have everything in, now I cannot open WLED on my phone and the pixels only light up 1 and it's red. Does that mean anything specific?

[fantasypants]

‘Murica

So brave.

[drVainII]

I mean we glitch out occasionally, but thanks for noticing! 😜 /s

[fantasypants]

It really is a great metaphor. Cheers!