LED matrix desktop stand for smart homes - Free 3D Print Model

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smengerl

Hobby & DIY>Electronics

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Bill of Materials

List other parts

ESP32 Dev Module (USB-C recommended) x 1:
WS2812B 8x8 LED Matrix Module x 1:
M3×10mm cylinder head screws x 6:
M3×6mm cylinder head screws x 4:
M2×4mm cylinder head screw x 6:
Optional: 2mm semi-transparent acrylic sheet x 1: cut to size

Description

Summary

This project provides a clean, professional-looking stand for standard 8x8 WS2812B LED matrices. The modular design features a stable base, integrated ESP32 housing, and a diffuser system for optimal light distribution. Perfect for Home Assistant displays, pixel art, notifications, or custom visualizations.

Key Features:

Desktop stand - Stable base for table placement
Clean aesthetics - Acrylic cover and diffuser for a clean look with retro pixel optics
Low cost - Budget-friendly build (under $10 in components)
Versatile applications - ESP32-based design enables various use cases. Perfect for Home Assistant, notifications, pixel art, or animations
Easy to build - Simple to print and assemble

Full documentation, assembly instructions, and source files available on GitHub: https://github.com/Smengerl/model_paint_holder

Example Applications:

Home Assistant status display
Solar/battery monitoring
Weather display
Notifications
Pixel art animations
Retro game displays
Music visualizer

What's Included:

Base box with integrated ESP32 mounting
Display frame base
Display diffuser (print in translucent PLA)
Display grid (print in black for best results)
Display cover frame
Base box cover

Print Settings

Rafts: No
Supports: No
Infill: 20%

Notes:

Best visual results with semi-transparent black acrylic and black grid
Diffuser prints best in translucent/natural PLA for smooth light distribution
All dimensions optimized for standard WS2812B 8x8 matrices (typically ~32mm square)

Assembly

Mount ESP32 to base with M3×6mm screws
Attach display frame base with M3×10mm screws
Solder and connect LED matrix to ESP32
Secure LED matrix with M2×4mm screws
Insert diffuser and grid
Add acrylic panel to display cover (optional)
Place display cover on top
Close base with M3×10mm screws

See assembly animation in the images for visual guidance.

Software

An example ESPHome configuration for Home Assistant integration is available in the GitHub repository: https://github.com/Smengerl/matrix_display_stand_8x8