Guide

OmnaDMX is an ESP32 DMX lighting controller. It drives addressable RGB and RGBW LED strips from DMX512, Art-Net, or sACN, and it can run its own pattern engine when there’s no console at all. You configure it from an on-device OLED, a browser app, or plain-language prompts.

Two boards run the same firmware. They have the same features, so the choice between them comes down to the install.

Boards & limits

	Sparkle Motion	ESP32-S3-ETH
LED strip outputs	3	up to 8
Network	WiFi only	wired Ethernet (preferred), WiFi fallback
Onboard mic	yes (sound-reactive)	no
USB file access	no	yes (storage mounts as a USB drive)
Best for	compact or sound-reactive installs	permanent installs, larger rigs, show networks

The ceilings you design within apply to both boards:

Limit	Value
Virtual elements	8
Slices per strip	32
Palette colours per pattern	8
Pixel universes (Art-Net / sACN, DMX Pixels)	8 (Sparkle Motion), 38 (S3-ETH)
I2C sensors	4, each up to 16 outputs
Routes / reactions per sensor	8 / 8

How this guide is organized

• Getting Started — wire power and LEDs, first boot, get on the network.
• Web Config App — the browser UI: elements and slices, operating modes, the pattern engine, sensors, AI patterns.
• DMX / Art-Net / sACN — wiring and configuring the protocol inputs and outputs.

The HTTP API has its own Reference.

Note

The guide tells you what to set, what each option means, how to choose, and where the limits and pitfalls are. The web config app exposes every individual control; the Reference documents the API.

Where to start

New device in hand: Power & LED wiring. Slotting it into an existing rig: the DMX / Art-Net / sACN track gets you there fastest.