Quick note
A 4-panel RGB LED matrix with a custom controller board — small project, real engineering, and the right energy to lead a portfolio with.
The build is a 2×2 grid of addressable RGB LED panels driven by a custom controller board and a ribbon cable. The controller handles the panel refresh and the character buffer; the panels are mechanically aligned in a simple frame so the whole thing reads as a single low-resolution display.
Firmware is the part worth pointing at: a small bitmap buffer, a fixed-width font, and a short scroll routine. Nothing exotic, but the kind of small clean implementation that makes a project feel finished rather than demo-grade.
This is a featured-artifact style project — short, visible, and rooted in real choices around electronics, firmware behavior, packaging, and iteration. The whole thing fits in one hand.