Hardware & Build Guides

Soldering tutorials, matrix theory, shift-register expansion, and KiCad PCB design

Build Guide

Step-by-Step Assembly Guide

Illustrated soldering and assembly walkthrough: sockets, diodes, LED resistor calculations, and LEGO case mounting.

Hardware Guide

Not Enough Pins? Matrix Expansion

Exhaustive engineering tutorial on driving large matrices from tiny MCUs via SPI shift registers and matrix folding.

Electronics Guide

How Keyboard Matrices Work (3×3)

Beginner-friendly hardware primer on diode direction, ghosting prevention, KiCad PCB routing, and bootstrapping QMK.

PCB Design

Handwire Helpers (5×5 Breakout)

Modular 5×5 switch matrix break-apart PCBs to simplify custom handwiring and speed up prototyping.