Keyboard Builders' Digest
Save 5% at Keebstuff! Code: KBDNEWS
Keyboard Builders' Digest / Tools

Arduino UNO Mini

The UNO is not your typical keyboard controller, but the anniversary edition is actually only 34.2mm x 26.7mm. Hmmm.

KBD.news
Published November 25, 2021
Creators! Feel free to tip me off about your keyboard related projects to bring them to 100K readers.

The UNO has now sold over 10 million units, and people at Arduino celebrate this achievement with introducing a miniature redesign, to be produced in limited number (however, I couldn't find any info on the exact number of boards being made).

A real UNO was my entry to DIY electronics so I'm quite sentimental about this milestone.

While building a keyboard based on a classic UNO is absolutely feasible, I've seen only one such board if I remember right.

No wonder: the Atmega328P doesn't have native USB HID support, and the board itself is simply too bulky to fit most keyboard cases, especially splits.

Still, not so long ago, questions like "Can you use an Arduino Uno/Micro to build a keyboard?" were regular ones on r/mk.

And the exposed through-hole designs built on the 328P demonstrated that, while it's not the easiest way, it indeed can be used as the brain of your keyboard.

So while it still lacks native HID support, the anniversary UNO Mini with its way more keeb-friendly 34.2 x 26.7mm footprint is definitely something I expect to see at least in a few upcoming one-off builds.

(Just as reference, the Pro Micro footprint is 33x18mm and that of a Teensy 2.0 is 31x18mm.)

Well, such a build would be still apparently a joke/fun build mostly because of the hefty price tag. For the same $45/40euro (plus shipping and VAT) you can still buy 8-10 Pro Micros from Aliexpress or 5 Keeboars from Adafruit.

Do you like this post? Share, donate, subscribe, tip me off!

Published on Thu 25th Nov 2021. Featured in KBD #54 (source).


Related

Blok controller

Boardsource announced Blok, a new RP2040-based microcontroller with Pro Micro footprint.

Kemove P10 switch puller

Kemove sent me their P10 switch puller, which is a very handy little tool. And for just $12* it's a no-brainer.

Raspberry Pi Pico & RP2040

Thoughts on the Raspberry Pi Pico, a review, plus the Sparkfun and Adafruit boards using the same RP2040 chip.

tt - A typing test for your terminal

tt is a command line typing test from woefullywistful who also created yamtt.app.

Touchscreen prototyping

artru used SVG and JavaScript to come up with a prototyping method for physical layouts on a touchscreen.

Parametric keycap design

Showcasing the Riskeyboard 70's features, riskable introduces the GEM profile created with his Keycap Playground tool.

×
top