16x16 LED Matrix Frame with Diffuser Grid

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 (see stl files)

CHECK THE STL FILES ("DOWNLOAD STL/CAD FILES") IF YOU NEED THE UN-SPLIT (ONE PIECE) OR SOCKET-LESS FILES

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](https://aliexpress.com/item/4000544411175.html)
ESP-Wroom-32 - e.g. [https://aliexpress.com/item/1005005972312714.html](https://aliexpress.com/item/1005005972312714.html)
MAX4466 microphone - e.g. [https://aliexpress.com/item/3256803608057399.html](https://aliexpress.com/item/3256803608057399.html)
or
MAX9814 microphone - e.g. [https://aliexpress.com/item/3256805923391884.html](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](https://aliexpress.com/item/32844702891.html) or [https://aliexpress.com/item/1005006126703620.html](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 CONFIG:

LED & Hardware setup (WLED/Config/LED Preferences):

IMPORTANT! - Set the appropriate Maximum PSU Current for your power supply (if powering from USB use 5-9A max – it varies with USB type and chargers.)

Under Hardware Setup/LED Outputs set the correct number of LEDs in the matrix/matrices, in this case 256. This will also give you an idea of how many Amps are needed.

Microphone settings (WLED/Config/Usermods):

Some useful resources:

WLED Project: [https://kno.wled.ge/](https://kno.wled.ge/)
Chris Maher WLED tutorials playlist: [https://www.youtube.com/playlist?list=PLur8dX5PE-4pk838s_gZAdm-98-sf0f0Z](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](https://www.youtube.com/playlist?list=PLUTKOGJvdIQ8WYfG6TDJ_c8_WlPovWbL9)

My other LED projects:

[https://makerworld.com/en/u/3965042544/collections/101475](https://makerworld.com/en/u/3965042544/collections/101475)