Astro-Beano

Novice astronomer and photographer near Dundee, Scotland, starting out with his first telescope. Also dissects webcams & puts them in bird boxes, and tinkers with Raspberry Pi projects.

Friday, 20 March 2026

My Goldilocks keyboard, is 30 to 32 keys just right?

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A month ago I wrote about my Bivvy16D and Bivouac34 keyboard designs , and since then have built both and been using them - taped to a cardb...
Tuesday, 17 March 2026

Naginata Style (薙刀式) Update

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Back in August 2025, I wrote up an explanation of the kana-based Naginata Style keyboard layout for typing Japanese . Lately I have started ...
Friday, 6 February 2026

Two tiny 10x10cm PCBs for keyboards

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Did you know that the price of fabricating a PCB jumps at the magic threshold of a ten centimetres square? That seems to be especially true ...
Tuesday, 27 January 2026

Small girth 8 graphs for keyboard wiring

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This post is a less interesting follow up to my recent catalogue of girth 6 graphs for keyboard wiring , which give 4-key roll over (4KRO). ...
Tuesday, 30 December 2025

5-way switch in a diode-free Graph Theory keyboard

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My first post about keyboards introduced the idea of Graph Theory applied to keyboard wiring . I have since used the girth 8 Tutte-Coxeter G...
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