WRITING

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7 posts — sorted by date

◈ HEMA ESL ▸ esl ▸ da14585 ▸ e-paper

Turns Out Most of the Power Budget Was the Screen, Not the Radio

A second batch of dead HEMA e-paper tags sent me back into the firmware — this time for the boot ROM, a power budget that actually adds up, and a version-numbering bug that made new firmware look older than old firmware.

SEP 27, 2026 · 6 min read
◈ HEMA ESL ▸ e-ink ▸ ESL ▸ BLE

I Bought 100 E-Ink Tags for a Makerspace Project. The Project Fell Through. Now They're Clocks.

Bought ~100 surplus supermarket e-paper tags for a makerspace status board. Project fell through. Made Bluetooth clocks out of the survivors.

AUG 19, 2026 · 8 min read
◈ Basic Electricity ▸ electricity ▸ electronics ▸ explainer ★ FEATURED

Why Ohm's Law Matters — and How It Runs Your Home

One rule from 1827 tells you whether the kettle and the air fryer can share a power strip — and most people never learn it.

AUG 19, 2026 · 19 min read
◈ UniHiker K10 ▸ An arcade emulator ▸ esp32 ▸ emulation ★ FEATURED

Unihiker K10 Arcade

Building on Till Harbaum's foundational Galagino project, I've adapted the emulator for the UniHiker K10 to explore 60Hz output and zero-friction WiFi gamepad support.

APR 13, 2026 · 4 min read
▸ ai ▸ machine-learning ▸ workshop

It's Not Googling. It's Guessing.

Every AI workshop gets to this question: isn't it just a search engine? It isn't. I've explained this enough times that I finally wrote it down.

APR 09, 2026 · 3 min read
◈ UniHiker K10 ▸ esp32 ▸ embedded ▸ audio ★ FEATURED

I Built a Chiptune Player Instead of Doing Actual Work

Prepping a DFRobot UniHiker K10 for an AI workshop, I got distracted and ended up writing an AY-3-8910 emulator. It plays Doraemon. I regret nothing.

APR 09, 2026 · 4 min read
▸ meta ▸ ai ★ FEATURED

I'm Back — And I Brought an AI

After two years of silence, the blog is back. Some things changed. The soldering iron never left.

APR 08, 2026 · 3 min read