Keyboard Builders' Digest
Holy cow! 30% off at Kemove! Code: KBDNEWS
Keyboard Builders' Digest / Inspiration

Ortho Protozoa P02

u/smellycoat made an ortholinear PCB to fit a Protozoa P02 case – with a giant knob.

KBD.news
Published April 25, 2022

The case is from a group buy run by Protozoa Studio, and designed to fit a Discipline PCB.

I designed a new PCB (and plate), which uses the same ATMega32a and a very similar circuit but redesigned (from scratch) to fit an ortholinear layout while still being compatible with the case – smellycoat.

The big knob is set up with a smooth (ie no detent) encoder which complements the extra weight nicely.

It's set up for scrolling at the moment but I'm going to add some different functions for different layers.

It's a PEC11R-4020F-S0024. No detents out of the box.

To be honest they feel kinda shitty with a normal knob (a little rough and scratchy) and don't spin very freely, but with that massive heavy knob you don't notice the scratchiness and the extra weight helps it spin.

And the knob itself is on sale e.g. here and here.

The other two knobs control volume and undo/redo, and have a more usual detent decoder.

Finally, here's another pic showing off the exposed components a bit better:

Pic:

Published on Mon 25th Apr 2022. Featured in KBD #75 (source).


Did you like reading this post?

Donate to keep this project alive


Related

Keezyboost40

This nice ortho keyboard is called keezyboost40, and designer u/sporewoh just published the PCB.

7c8 Framework with acrylic cover

Through-hole intensifies: open-source 7c8 Framework by stevennguyen/u/7c8.

A Commodore inspired Planck 64

A Commodore inspired Planck 64 with resin keycaps by 23_Andreas.

Froggr

Froggr is the next board in weteor's Orthocade family: a 12u ortholinear keyboard with 48 keys and offset bottom row.

Through-hole ortho with a thumb cluster

BTY-80 - A through-hole ortholinear TKL keyboard with a thumb cluster by ajkldsz.

Eternal Keypad

Kyek published his open-source gaming keypad for lefties.

×
top