Art-Net 4 / sACN · ESP32-P4

Open-source LED lighting, from control to fixture

pixfrog is a complete open project: the Art-Net 4 / sACN controller firmware on the ESP32-P4, the 1U rack, the electronics that condition the bus, the power satellites at the far end of a run, and LED bars coming next.

8 outputs 48 universes 9 pixel protocols FSEQ microSD OTA A/B MIT licensed

A complete rack — open, and documented.

Inside the pixfrog rack: daughterboard, internal supply and vent panels — **Repairable**
Daughterboard on pluggable terminal blocks, supply on its own. Everything is replaceable, everything is published.

The pixfrog 1U rack, eight XLR outputs across the front panel — **8 × XLR, internal supply, 1U**
Outputs labelled CH1 to CH8, standard rack ears, passive ventilation. Patching happens at the front panel, with nothing to dismantle.

FAILSAFE · per-channel fallback NVS · settings that persist MICROSD · xLights / FPP shows

The desk is on the front panel. The detail is in the browser.

The on-device display shows network, services and per-channel activity at a glance — protocol, universe, pixels, brightness and a live status LED per output.

pixfrog embedded web UI dashboard — **Embedded web UI**
Link, FPS, Art-Net and sACN traffic, scenes and sequences — served by the device itself.

pixfrog on-device display: IP, services, FPS and the eight channels — **The same state, no laptop**
IP, active protocol, FPS and all eight channels at a glance.

pixfrog web UI channel patch page — **Full patch of the 8 lines**
Every output, field by field, saved to NVS.

Built natively on ESP-IDF, tuned for deterministic timing.

Protocols

9 pixel protocols

WS2815, WS2812B, WS2811, SK6812, WS2814, APA102, SK9822, LPD8806 — with per-channel color order, gamma and brightness.

Network

Art-Net 4 + sACN

ArtDmx, Sync, Trigger, TimeCode and remote config over Ethernet; opt-in sACN (E1.31) with priorities and 2-source HTP/LTP merge — up to 48 universes.

PARLIO / DMA

Parallel DMA output

The ESP32-P4 PARLIO peripheral clocks all 8 channels in parallel out of PSRAM double buffers via DMA for rock-steady, jitter-free refresh.

Display

On-device UI

Colour TFT status dashboard (or classic OLED) driven by a rotary encoder — live FPS, link, per-channel activity and full configuration, no laptop needed.

Web / OTA

Web UI & OTA

Opt-in embedded web app: full configuration, live status, OTA updates with A/B rollback, JSON backup/restore, coredump download, optional auth.

microSD

FSEQ player

Plays xLights/FPP .fseq shows from microSD (zstd, hot-plug), free-running or slaved to ArtTimeCode and FPP MultiSync.

Scenes

Scenes & failsafe

8 standalone scenes (solid / chase / rainbow) playable at boot, from the desk or any UI — plus a per-channel signal-loss failsafe.

NVS

Persistent config

Every setting is stored in NVS and survives reboots, with a loud warning on the home screen if flash goes bad.

PSRAM

Octal PSRAM

200 MHz octal PSRAM holds the double-buffered frames while DMA-capable SRAM keeps the output path fast.

Read the architecture ↗