Taking A One Handed Keyboard To The Next Level

June 13, 2025 by Jenny List 1 Comment

When a wrist mounted keyboard floated past in the Hackaday feed, a mental image surfaced, perhaps something like a Blackberry keyboard mounted on a wrist cuff, maybe with some kind of display. It’s impressive indeed then to open the link and see [AdamLeBlanc]’s Schist01. It’s a wrist mounted keyboard, but with its bracket curving in front of the had to support a custom ergonomic chording keyboard, it’s definitely a break from the norm.

The wrist mount has clearly taken a lot of thought, and despite looking something like the arm of a Star Trek Borg, appears comfortable. It’s extremely adjustable, and can be demounted into several different parts. Meanwhile the keyboard itself has been formed to his hand by a trial and error process involving keycaps and a clay model. there’s even a thumb-operable touchpad.

We like this peripheral a lot, for the huge attention to detail that has gone into its design, for its boldness, and because we can’t help seeing ourselves using it as the input device for a futuristic head-mounted display. For now though we don’t have any futuristic silver clothing in the wardrobe, so that will have to wait. If you’d like to see more, there’s a video.

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Building A Cyberpunk Modular Keyboard

June 7, 2025 by Lewin Day 9 Comments

Perhaps you have a tilt towards glowing cyberpunk peripherals. Perhaps you’ve been hunting for a keyboard that you can position perfectly to suit both your left and right hands. In that case, you might just like this nifty design from [Modern Hobbyist].

The first thing you’ll note is the split design, which allows each half of the keyboard to be placed optimally for each arm’s comfort. They’re linked with a cable, which allows the STM32 microcontroller to read the keys on both sides and then spit out the right stuff upstream over its USB-C connection. The microcontroller is also in charge of running the per-key LED lighting and the LCD screens on each half.

The board owes its sleek and slim design at least in part to using Kailh Choc low-profile switches. They plug in to hotswap compatible sockets so the switches can easily be changed if desired. Keycaps are blank off-the-shelf parts because this is a keyboard for those who aren’t afraid to spend the time establishing the right muscle memory. It might take some adaptation if you’re not used to the staggered columnar layout. However, the LCD screens can display a keymap if you need a little help now and then.

We’ve seen a lot of great split keyboards over the years, including one amusing design made by hacking an existing keyboard in half with a saw.

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Microsoft Looking To Enforce USB-C Features Through WHCP

June 7, 2025 by Maya Posch 36 Comments

As much as people love USB-C, there’s one massive flaw that becomes very obvious the moment you look at the ports on any computer. This being that there’s no (standardized) way to tell what any of those ports do. Some may do display out (Alt-Mode), some may allow for charging, but it remains mostly a matter of praying to the hardware gods. According to a recent blog post, this is where Microsoft will seek to enforce a USB-C feature set on all (mobile) computers compliant with its Windows Hardware Compatibility Program (WHCP).

This also comes after years of the USB Implementers Forum, re-branding the USB specifications, with the most recent iteration thankfully using the bandwidth (in Gbps) as specifier (meaning no ‘USB PlaidSpeed’, sadly). Claiming to follow this end-user friendly spirit, the Microsoft blog post goes on to a minimum set of features that USB-C ports should have, as detailed in the above table.

Most notable is probably that PC charging support is required, as is support for at least one external display. As for the negatives, this seems to only apply to laptops, and no actual charging requirements are set (USB-PD voltages, wattage, etc.), so what the actual impact of this will be remains to be seen.

One thing remains certain, however, and that is that by trying to make USB-C the One True Connector for literally everything, there will always remain cases where end-user expectations remain unfulfilled.

The Keyboard Sinclair Never Made

June 2, 2025 by Heidi Ulrich 21 Comments

For those of us who’ve spent far too long hammering rubber keys into submission, a glorious solution has arrived. [Lee Smith] designed the ZX Mechtrum Deluxe, the ultimate keyboard upgrade for your beloved ZX Spectrum 48k. Thanks to [morefunmakingit], you can see this build-it-yourself mechanical mod below. It finally brings a proper spacebar and Spectrum-themed Wraith keycaps into your retro life.

The Metrum Deluxe is a full PCB redesign: no reused matrices or clunky membrane adapters here. [Lee Smith] got fed up with people (read: the community, plus one very persistent YouTuber) asking for a better typing experience, so he delivered. Wraith keycaps from AliExpress echo the original token commands and BASIC vibe, without going full collector-crazy. Best of all: the files are open. You can download the case on Printables and order the PCB through JLCPCB. Cherry on top (pun intended): you’ll finally have a spacebar your thumbs can be proud of.

So whether you’re into Frankenstein rigs or just want your Spectrum to stop feeling like an air mattress, check this video out. Build files and link to the keycaps can be found on Youtube, below the video.

Tip: if you foster a secret love for keyboards, don’t miss the Keebin’ with Kristina’s series on all sorts of keyboards.

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Illustrated Kristina with an IBM Model M keyboard floating between her hands.

Keebin’ With Kristina: The One With The H.R. Giger Keyboard

June 2, 2025 by Kristina Panos 19 Comments

I had to bust out Brain Salad Surgery to write this one, folks. It was that, or put on some Ministry or something. Just look at all the industrial-ness dripping from [heinn_dev]’s creation.

An incredibly industrial-looking split keyboard. Like, almost H.R. Geiger-esque. — Image by [heinn_dev] via reddit

Apparently [heinn_dev] wasn’t completely satisfied with his Chocofi case, and instead of requesting a full refund, just went ahead and made a prettier one. It took a lot of printing and even more sanding, but here we are. And it looks fantastic.

The only downside, if you can call it one, is that adjusting the tenting is a slow operatiJKon. But then again that’s one of those things that you usually set and forget.

Oh, and those keycaps are printed, too. As one commenter said, those homing nipples look painful, but I think it’s part of the charm. I just hope that hand grime doesn’t end up clogging the holes under the palm area. Clean your keyboards, people. Continue reading “Keebin’ With Kristina: The One With The H.R. Giger Keyboard” →

Building A Wireless Motorized Fader For Lighting Control

May 31, 2025 by Lewin Day 2 Comments

Motorized faders are very cool, and you can find them in everything from expensive mixing desks to high-end video editing decks. If you want to build your own wireless motorized fader controls for your own projects, you might like this project from [Ian Peterson].

Faders are useful controls, but they’re usually very one-way devices—you set them to what you want, and that’s it. However, motorized faders are a little fancier. You can move them yourself, or they can be moved under the command of other hardware or software—making a control change automatically that is still visible to the human in front of the control panel.

[Ian Peterson] built his OSCillator motorized fader for his work with lighting consoles in theater contexts. Its name references the Open Sound Control (OSC) platform which is commonly used across various lighting consoles. His build relies on an ESP32 to run the show, which communicates with other lighting hardware via WiFi. The microcontroller is responsible for reading the position of the fader and built-in button, and sending the relevant commands to other lighting devices on the network. At the same time, it must also listen to commands from lighting consoles on the network and update the motorized fader’s position in turn if the relevant control it’s mapped to has been changed elsewhere.

If you’re working in theater or film and you’re wanting to control lighting cues wirelessly, a tool like this can really come in handy. We don’t see a lot of motorized faders in DIY projects, but they pop up now and then.

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What Does Linux Need? A Dial!

May 30, 2025 by Jenny List 11 Comments

It’s fair to say that there can’t be many developers who have found the need for a rotary telephone dial as a peripheral for their Linux computer, but in case you are among them you might find [Stefan Wiehler]’s kernel driver for rotary dials to be of use.

It’s aimed at platforms such as systems-on-chip that have ready access to extra GPIOs, of which it will need a couple to service the BUSY and PULSE lines. There are full set-up instructions, and once it’s in place and configured it presents the dial as though it were a number pad.

We like this project, in fact we like it a lot. Interfacing with a dial is always something we’ve done with a microcontroller though, so it will be interesting to see whether it finds a use beyond merely curiosity. We can already see a generation of old-school dial IP phones using Linux-capable dev boards. He leaves us with a brief not as to whether Linus Torvalds would see it as worthy of mainline inclusion, and sadly however much we want things to be different, we agree that it might be wishful thinking.

If you’d like to use a dial phone, there can be simpler ways to do it.

Header: Billy Brown, CC BY 2.0 .