▲I made a small LED panel(stavros.io)
81 points by Brajeshwar 11 days ago | 9 comments
▲stavros 7 hours ago
I was about to comment that I also made a small LED panel, but then realized it was me.

Here's the latest LED thing I'm working on (the design isn't mine): https://immich.home.stavros.io/share/oXerU8gnLn-dNHunPOg8lM8...

▲Lerc 3 hours ago
Do you know if the panels can be bodged to be non square? There shouldn't be a lot of fancy wiring to screw up if it's all WS2812. Can you (delicately) chop a few LEDs out and bridge the connections?

(hoping I have seeded this idea, so I'm not the first one to attempt this)

▲stavros 18 minutes ago
Sure, you can connect the LEDs together however you like (am I misunderstanding the question?).
▲phil42 2 hours ago
How did you connect the individual smaller LED panels together? I guess the cool color patterns and the individual addressing comes from WLED then?
▲stavros 17 minutes ago
There's a photo of the panels connected to each other, each panel has three input and three output pads, and you solder those together. The software just sees one long strip, and you configure the shape of it so it corresponds to what you have in reality.
▲BolexNOLA 6 hours ago
spidermanspointing.jpg

Jokes aside this is super cool. I always find LED panels really interesting to look at under the hood. I’m so picky about the ones I like to use almost purely based on vibes when filming. They’re just one of those things that you immediately know you’re going to love or hate in post the moment they hit your subject

▲stavros 6 hours ago
What can I say, I'm addicted to LEDs. I tried so hard to not make that cube above, but I failed.
▲scottbez1 6 hours ago
On the topic of small LED panels, Jason of Evil Genius Labs has been making some really small LED panels [0] with addressable 1mm x 1mm LEDs (yes, individually addressable AND only 1mm on each side!). Fitting 128 onto a 1" circle is pretty sweet.

I keep meaning to design some PCBs with them [1] but it's too far down my ever-growing list of projects to see the light of day...

[0] https://www.evilgeniuslabs.org/one-inch-fibonacci128

[1] https://www.lcsc.com/product-detail/C5349953.html

▲alias_neo 1 hour ago
Ah, the joy of being a Brit. That first link is just full of purple rectangles containing the text "content not viewable in your region" (Imgur).

I'm feeling safer already. sigh.

Looks like a fun site though, I'll take a look when I'm not on my work computer.

▲karlkloss 2 hours ago
https://spotpear.com/shop/ESP32-S3FH4R2-Matrix-8x8-RGB-LED-W...
▲stavros 6 hours ago
Why are you doing this to me
▲MrGilbert 2 hours ago
Speaking about small led panels, I also recommend the "Fluid Simulation Pendant" from mitxela: https://mitxela.com/projects/fluid-pendant
▲smusamashah 1 hour ago
I dont understand it. The resolution is only 8x8. How does the animation at the end looks so smooth and way higher resolution?
▲stavros 15 minutes ago
The diffuser fakes the resolution, basically, by blending the colors together physically.
▲Havoc 1 hour ago
Tried my hand at this too. Except more janky and was aiming at lots of output.

LED get freaking hot fast at higher wattages and quickly found myself dealing with heat sinks etc.

▲Lerc 4 hours ago
I have a bunch of these 8x8 panels on their way from AliExpress right now for an art project that a part will look remarkably like the video. V1 will probably be a 32x32 just like it.

I still haven't decided if I want to have a partition grid between the panel and the diffuser to make square edge pixels. It's definitely going to have a rp2350 inside. PIO is the best thing ever.

▲mytailorisrich 11 days ago
The diffuser really makes this. The resulting effect looks great.
▲stavros 7 hours ago
It really did! It looked much better than I hoped, I really liked the result.
▲karlkloss 2 hours ago
https://kno.wled.ge/
▲nikkwong 6 hours ago
This is neat! Any notes on the algo for controlling the output of the ws2812s?
▲Tempest1981 1 hour ago
Maybe WLED plasma effect (number 97)?

https://kno.wled.ge/features/effects/

https://github.com/wled

▲stavros 14 minutes ago
Yes, it's probably something like that. WLED has a ton of patterns, it's really nice.