16x16 LED Matrix Frame with Diffuser Grid by fractalnoise

fractalnoise

Hobby & DIY>Electronics

Print Profile(2)

All

X1 Carbon

P1S

P1P

X1E

Diffuser (0.2mm layer, 2 walls, 15% infill)

Designer

2 h

1 plate

5.0(13)

Front and Back (0.28mm layer, 2 walls, 15% infill)

Designer

2.4 h

2 plates

4.8(12)

Boost

137

181

256

Released

Description

16x16 LED Matrix Frame

No glue, tape or screws needed
Accessible USB port
Wall- or desk-mounted
Snap-fit sockets for ESP-WROOM-32, MAX4466 or MAX9814 microphone and DC Power Connector for easy installation
Optional socket-less version

Instructions

Print:

Print the Diffuser Screen with these settings to give the screen a horizontal “scanline” texture:

Top/Bottom surface pattern: ALIGNED RECTILINEAR
Internal solid infill pattern: ALIGNED RECTILINEAR
Sparse infill pattern: ALIGNED RECTILINEAR
Infill direction: 0

If using white filament for the Diffuser Screen, printing it on a textured plate will make it scatter more light and be dimmer. Use a smooth plate for best results. A textured plate will work great for clear filament though :)

For the LED matrix, you'll need:

16x16 LED Matrix - e.g. https://aliexpress.com/item/4000544411175.html
ESP-Wroom-32 - e.g. https://aliexpress.com/item/1005005972312714.html
MAX4466 microphone - e.g. https://aliexpress.com/item/3256803608057399.html
or
MAX9814 microphone - e.g. https://aliexpress.com/item/3256805923391884.html
Power Supply 5V 1.5A-15A (~2-5A will do for most uses) - e.g. https://aliexpress.com/item/32844702891.html or https://aliexpress.com/item/1005006126703620.html
or an old USB cable (cut one end and connect the + and - to the LED matrix)

LED Matrix/ESP32/WLED Assembly Guide:

WLED Microphone settings (WLED/Config/Usermods):

Some useful resources:

WLED Project: https://kno.wled.ge/
Chris Maher WLED tutorials playlist: https://www.youtube.com/playlist?list=PLur8dX5PE-4pk838s_gZAdm-98-sf0f0Z
Make It Work WLED tutorials playlist: https://www.youtube.com/playlist?list=PLUTKOGJvdIQ8WYfG6TDJ_c8_WlPovWbL9

My other LED projects:

https://makerworld.com/en/u/3965042544/collections/101475

16x16 led matrix case

Documentation (2)

Assembly Guide (2)

16x16_drawing_3d1ccfc1-4dd8-4ad0-a1bd-d87007ee9c9e.png

wiring_154b6718-55bd-4019-bd0f-e253369dfdd7.png

Comment & Rating (33)

@napalmz

The STEP file of back part is different from the picture you uploaded here. Can you update it? Thank you

The designer has replied

@fractalnoise

Hi! the picture is from an older version, the step file is the latest version

@ModeratorPS

Print Profile

Front and Back (0.28mm layer, 2 walls, 15% infill)

it’s working very good, but it would be great, if there were more space between the mini Computer and the matrix

@ModeratorPS

Print Profile

Diffuser (0.2mm layer, 2 walls, 15% infill)

Working perfectly!

@tom.noon

Print Profile

Diffuser (0.2mm layer, 2 walls, 15% infill)

Works well, used a pause to change filament because I don't have ams

@tom.noon

Print Profile

Front and Back (0.28mm layer, 2 walls, 15% infill)

Nice print

@sirfragalot

Print Profile

Front and Back (0.28mm layer, 2 walls, 15% infill)

Printed the grid without the diffuser and used a sheet of 0.5mm modelling styro plastic. Came out perfect.

@Fotogy

Very nice idea! I've got some questions though: 1. If you do the math for the max power consumption you'll get: ((16x16)x0,06A)=~15,36A. You said that a 2A PSU is enough, can you confirm that to be the case or did you set a maximum Current in WLED? 2. Do I have to plug the esp32 with usb power all the time? Can't i use the already existing barreljack? Or do you send the power first through the panel and out to the esp32? 3. You should be able to load new sprites and maybe animations through the wled app on any mobile phone right? Maybe share some of your experience please

The designer has replied

@fractalnoise

1. Yes, for most effects ~2amps will suffice... The full 15A are needed if you want to drive all the LEDs full white at max brightness, but that's really never gonna be the case. You can check in WLED/Config/LED Settings the estimated power consuption for the effect you're running. For example "Hyphotic" (all the LEDs on in various colors) uses about 1530mA, while "Fireworks1D" uses only about 430mA. For the 16x16 and 8x32 matrices I'm actually using old USB cables (1.5A) which I cut and connected directly to the LED matrix, and they work perfectly. Do set a max brightness/amps in wled though, to whatever your chosen power supply can handle. 2. No, you'll need the USB only to install WLED. Once the LED matrix is connected to a power supply the ESP will draw power from there. I added a wiring diagram you can check. 3. To add your own images, use the Pixel Magic Tool that comes with WLED -- http://[ip address of your wled]/pxmagic.htm (i.e. http://192.168.0.1/pxmagic.htm) -- more info here: https://github.com/ajotanc/PixelMagicTool. It should be pretty self-explanatory but it will take some experimenting :) TIP: I had some trouble with transparency with the pxmagic tool from the wled beta (I haven't tried the release version yet) so I got the newest file (pxmagic.htm) from github and uploaded it to my esp (http://[ip address of your wled]/edit), changed its name to avoid confusion with the built-in tool and used that instead. Pxmagic will work locally as well (i.e. you don't need to upload pxmagic.htm to the esp, you can run it on your desktop) but you'll need to give it the esp's ip address.

(Edited)