Engineering projects — building wearables, robots, and tools that solve real problems.
I build things that solve real problems — wearables for athletes, robots, and measurement tools. I want to understand how the world works, and the best way I know is to build it.
This repository is my engineering journal. Every project is here — the working versions, the failed versions, the half-finished ideas, and the lessons from all of them.
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Smash Counter — micro:bit v1 A wrist-worn badminton smash counter using BBC micro:bit V2 and ML gesture detection. ✅ Complete — 22 versions, 100% ML accuracy, court tested.
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Smash Counter — ESP32 v2 — v0.21 working wirelessly on battery. WiFi dashboard on phone. 21 versions. Demo Day March 2027.
- Quadruped Dog Coming soon
I test with real people before I build the next version.
I keep every failed prototype.
I write down what broke and why.
I solder my own boards.
All photos, videos, CAD files, and circuit diagrams are stored here:
📁 Google Drive — Lishan Builds
The full build log is in BUILDLOG.md — every session, every version, newest entry on top.
Started: April 2026