Configuration

Everything a user can change lives in one JSON Config (defined in src/config.rs): network mode, credentials, DMX port directions, LED brightness and button actions.

The config is stored in NVS (postcard), so it survives reboots and power loss. Request handlers re-read it per request, and Config::apply() pushes every change into the drivers. Network fields are the exception: the network stack is configured once at boot, so those take effect on the next reboot.

Factory defaults

Out of the box the device comes up as its own access point with an SSID derived from the MAC address, so a freshly flashed board is always reachable without prior setup:

Setting	Value
Connection	WiFi AP
SSID	`ChaosDMX-□□□□` (last 4 hex digits of MAC)
Password	`ChaosDMX`
IP address	192.168.4.1
DMX0	Output, Universe 1
DMX1	Input, Universe 2
LED brightness	25 (0–255, ≈ 10 %)
Button: single click	switch LED brightness
Button: triple click	Reboot

Factory reset

Hold the user button while powering the device for 3 seconds: the LED breathes fast (Resetting), settings are cleared and the device reboots with factory defaults. Releasing early aborts (Warning blink) and keeps the config. Because it runs at boot, the reset works without network or UI.

A factory reset is also available at runtime via the WebSocket reset envelope (not yet exposed in the UI).

User button

The external button has multiple functions that can be configured in the web-ui.

Possible events are:

single click
double click
triple click
long press (≥ 1 s)

You can assign any of these events to a function:

switch the LED brightness (0–255)
reboot the device