December 2, 2025
Description
A challenging yet rewarding decorative lighting project, perfect for experienced makers looking for a unique, fully customizable piece of wall art.
This large 3D sign spelling "HAPPINESS" is designed to be printed in separate, modular pieces. This approach allows for a clean wiring process and easy access to all electronic components. The lighting is driven by addressable LEDs controlled by WLED, offering endless, dynamic light effects.
| Component | Specifications | Notes |
|---|---|---|
| Microcontroller | TENSTAR ROBOT ESP32-C3 | Recommended for its small form factor and Wi-Fi connectivity. |
| LEDs | WS2812B 5050 - 60 LEDs/meter | For dense and bright illumination. |
| Total LED Length | Approx. 6 meters (about 20 ft) | Ensure you size your power supply correctly (≥2A at 5V). |
| Optional (Shifter) | SN74AHCT125N | Recommended to shift the data signal voltage (3.3V from ESP32 to 5V for the LEDs) for improved reliability. |
| 3D Print Material | PLA/PETG in various colors | Thin walls are suggested for light diffusion. Consider opaque colors. |
Special thanks to the YouTube channel @dbmaking for the excellent guide that provided inspiration for the case modelling and WLED setup.
License:
MakerWorld Exclusive License
Andrea Cocco
