I'm Building the Best LED Wall on the Internet
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- čas přidán 2. 05. 2024
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In this video I explain the steps I took designing the next version of my DIY LED Wall. It’s basically an Arduino LED Matrix but massive. I use ws2812b LEDs and an ESP-32 microcontroller programmed with the Arduino IDE. If you’re new to hardware design or embedded systems programming, then this project is the perfect way to learn while building something fun!
Get Started with your own PCB design for free at easyeda.com/
All the files you need to replicate this are available on my GitHub:
github.com/TechRandom/NeoMatr...
Parts used:
LED Matrix Tiles (Amazon) - amzn.to/3UHX65y
LED Matrix Tiles (AliExpress) - s.click.aliexpress.com/e/_Dcy...
ESP32-S3 - amzn.to/4a4Iodn
Best Affordable 3D Printer - amzn.to/3JEYmQK
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Let me know if you have any suggestions for the next revision. I'm trying to make this project as approachable as possible so you guys can build one too!
Can you share your PCB board or do you recommend we create our own? That would be the hardest part for me.
PCB files are available on my GitHub linked in the description!
Slap on some good quality 1mm polycarbonate diffuser rather than 3d printing this not so looking good diffuser
As you have one esp32s3 per ´panel’ I would use 6pins for // outputs so you can have a correct refresh speed. Otherwise I think any animation will be too slow.
The refresh rate is pretty great as is. The bottleneck for this project will be the speed at which I can propagate the data between the panels when I have all 16. The esp32 has two cores so I’m going to use one to constantly receive and send data, and the other will be updating the pixels at around 30 fps.
I'll be watching when the led wall finally evolves into a TV.
I built a portable version that's similar to your design, but without the diffuser. It's modular tiles with a bay for 3 18650 batteries on the back, USB-C charging, daisy chaining, and an ESP-32. I can share the Onshape files if you want! I experimented with both the 5v and 12v ones and ended up going with 12v so I could chain more together before injecting more power.
Yes! Thank you! I need this!!!
Really neat project!
Can't wait to see the big wall!
Awesome work bro.
For the black diffuser, there’s a material called Black LED acrylic. It has a really nice matte black finish that looks great with no lighting, but let’s like color through very well. Chris Maher has done a few LED projects with it.
Nice!! You’re doing the same as i’m doing and i was inspired by your previous video about the led wall. I’ve used Wled and an esp32 to setup 6 modules. When installing look carefully for the corner without a dot under the led. That helps with the rotation. And i’ve made a really thin grid to go over the leds and i’ve made the first few layers in white. I’ll add some pictures later. Keep it up!
I'm working on same issue of scaling bigger. Already using neo-pixel, so can't wait to see your solution
If you increase the brightness just slightly on the pixels on the edges that connect to other tiles it will help camouflage the gaps. That's what video wall displays do.
I really like this project and it looks great. It's super weird that we are now to the point where it's hard to justify projects like this when we can buy screens this size that will probably cost less money in the end. Obviously, that isn't the point, but my frugal side keeps screaming at me when I start considering it.
Cool project, I would recommend parallel driving the panels, for higher refresh rate (you will want this if you want to achieve good low brightness color performance using temporal dithering.) FastLED (and when I was doing my project neither did NEOPIXEL) doesn't currently support esp32 S3 parralel driving, but there is piece of code that utilizes the I2S driver of the chip to parralel driver up to 16 channels.
You may want to look into making a pcb for the led panel as well
Full wall definition is going to be great and readable
Have you thought about using WLED?It has a lot of support for different lighting programs and tons of custom effects, pretty sure you can easily sync up multiple panels as well with different esp chips. Im interested to know if you've considered it because I've been using it to drive my one panel and I want to make more
I’ve used WLED for small matrices and all of the lights in my house. The effects are great as well as the controls, but for this project I want to specifically mirror a PC display so that’s why I’m doing it this way instead!
Nice!
Looking forward to seeing the end product. I'm still learning. Is there a reason you didn't use WLED for this? It can do what you need, right?
WLED doesn’t support screen mirroring but there are many other advantages to it. I want this project to be scalable for as many applications as possible so screen mirroring is an important part of that.
3:18 "Will take you directly to jail..."
Jail see pee see 🐝
I used the same tiles for a picture 2x2 tiles using WLED. I love it even if my wife wants to take it off the wall :)
why not use the 64x64 matrix in a P5 or smaller pixel size? they are about the same price per sq inch. hard to change now, but why the small matix?
Have you tried doing a white diffusor instead of a black diffusor? I've had some success doing that with by bambu labs printer with ams
My current wall uses a white diffuser and it works, but from my experience the darker colors don’t look as good. With the black diffuser I get a lot more contrast but the screen is less bright. It’s a trade-off that I’m trying to balance.
@@TheTechRandom Good stuff just wanted to put the idea out there
I would try this matrix with the Wled software
Not understanding that you did this with ws28xx series .... it would be much better with hub75 led matrix
Price mostly but I also like the pixel aesthetic. P3 or P2 panels will happen eventually if I can make the money back.
@@TheTechRandom Thank for reply. I am doing my project, raspberry pi 3 and matrix led. If that looks okay, I will just share with short video although that might be lame cuz it is quite old and nothing new.
Can you release the original 3D files for modifications? It would make it so people could remix it easily for different size tiles.
The files are available through onshape but it can be a mess trying to find them there so I’ll add them to my Git repo
@@TheTechRandom Can't wait. Thanks!
cad.onshape.com/documents/0b75d8a92eaed112abe058e4/w/ae56d212076a93f52d54f4f5/e/923ae6ff45cf32c0e0cd9106?renderMode=0&uiState=663526a8ddded813a2aa8592
Why not p4 panels?
cool room, full of more colors than willy wonkas chocolate factory
Just buy a TV bro 😂 (But well done! Very cool project 👍🏻)
Try night driver, it's wled big brother
What is the point? LED matrixes are readily available in any format and pixelcount stackable so you could cover a wall from 1/10 of the price. Nothing in them is challenging except how you map your image to the panel pixels.
You're in another league bro! Great work as always!
Remember repairability, a dead pixel Will happen, but yeah yeah, you already know that.
Oh yeah I had three dead pixels I've had to repair already. Definitely something I need to improve going forward.
Lol I recently got advertisment 0.7*2m MicroLED wall for free, so mine is cheaper and higher resolution)))
But seriously, nice build, good video!
Maybe you knew this already, but the part where the bytes were being ordered differently is called the "endianness". Some systems are little endian with the "lowest byte" and others are big endian when they store/send/receive data. Depending on the platform you're using, you may be able to find a more efficient way (e.g. some hardware-based call / byteswap library) to fix that problem if you're looking for a way to speed it up down the line.
I'm waiting for 2mm pitch led panels or below to become cheap. Ideally, 1 mm pitch.
Just buy an old 75" tv
Too bad that software doesn't have any documentation...
Just use P5 panels.
Ill just sit here and wait for you to do all the heavy lifting and then copy your homework and build by own.
um each one of them led fpcb's is like 17 dollars , literally cheaper to plaster your wall with actual displays
I got 100 for $500 by bulk ordering on Ali express. The amazon listings are more expensive since they only let you order one or two at a time
your problem is , viewing quality . nice work,. quality not great.
These subtitles just gave me a headache
This result is already great! I would suggest looking at Bitluni how he did this with his large scale LED wall.
Btw, it's pronounced "nya-n" cat (as in, the japanese cat meow onomatopoeia), not "nie-ann" :3
Man you talk fast... very tiring to listen to. Stopped watching the video after 2 minutes, or 75000 words.
I watched it it 2x speed. We are not the same.
Move on then
I watch everything at 2x on phone 3x on the computer. At 3x I heard every word.
skill issue