LUMIS

This is a forearm band with an 8*36 LED matrix, that's battery powered.

It uses a Xiao esp32-c3, that has Wi-Fi and Bluetooth, and a snap on 3d-printed diffuser to achieve a cool lighting effect.

Firmware

I used WLED as the firmware because it provides a nice UI and support for matrices

Name	Name	Last commit message	Last commit date
Latest commit KOEGlike Correct header level for Instructions section Mar 5, 2026 2ef77c4 · · Mar 5, 2026 History 39 Commits
.vscode	.vscode	wrote the blog, still need to add images	Nov 28, 2025
instructions	instructions	added proper instructions	Mar 4, 2026
BLOG.md	BLOG.md	Add image to LED forearmband blog post	Jan 6, 2026
BOM. csv	BOM. csv	Add BOM.csv with item links	Sep 26, 2025
CONCEPT.png	CONCEPT.png	changed image	Oct 6, 2025
README.md	README.md	Correct header level for Instructions section	Mar 5, 2026
diagram.excalidraw	diagram.excalidraw	added diagram	Sep 21, 2025
led-shield.20250928-091827.FCBak	led-shield.20250928-091827.FCBak	unhid chamfers in main	Sep 28, 2025
led-shield.FCStd	led-shield.FCStd	unhid chamfers in main	Sep 28, 2025