Issue 76 / Week 18 / 2022

This is a hand-picked selection of last week's content from a keyboard enthusiast's perspective. Posts that may teach you something, make you think and contribute to the common knowledge of the DIY builder community.

There are 12 entries in this issue:

Editorial

Behind the Scenes of Issue 76

Duplex matrix feedback, round-robin matrix research. New donors, April stats, upcoming KBD.NEWS scholarship(?).

Projects

The btrfld

u/SolidusHal's btrfld is a quite unique foldable, low profile, tenting keyboard.

Melodicade MX

The Melodicade MX is a portable 6+ octave MIDI keyboard by Michael from KOOP Instruments showcasing the Wicki-Hayden layout.

Sparrow62

Atsushi Morimoto's Sparrow62 is a split keyboard sporting a single Pi Pico with KMK.

Toast keyboard

Toast keyboard is an open-source split design by u/vpz for those with index fingers shorter than ring.

Reviung_ish

Frederik's keyboard dubbed the Reviung_ish extends the distinctive Reviung layout with a number row.

Tips & Tricks

Square or round-robin matrix

Let me introduce the square or round-robin matrix (aka Charlieplexing for keyboards) – a very tricky one promising 380 keys with a single Pro Micro.

Truchet tiles

Random Truchet tiles on your PCB's silk screen.

Keyboard Spotting

1970s Cortron keyboard

A gorgeous Cortron keyboard with ITW magnetic valve switches made for Sperry Univac systems. Posted by u/catsontuesday.

IBM CANPOS

Sharktastica posted an IBM CANPOS (Compact Alphanumeric Point Of Sale) keyboard with a pointing stick.

Datadesk LittleFingers

After buying a Datadesk LittleFingers LF-2100 keyboard, u/FansForFlorida posted an informative gallery.

Inspiration

PD_DECK

PD_DECK is a hot macropad by Monksoffunk primarily to control Lightroom.

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