So your ally was slain. Your comrade has fallen. And somehow, that capital F coming from that tiny key is supposed to convey your respect? Please. What you need is a giant, dedicated F key that matches the size of your respect. And [Jaryd_Giesen] is gonna teach you how to build your own. Well, kind of. Between the Thingiverse build guide and the hilarious build video below, you’ll get the gist.
One of the coolest things about this build is the custom spring. Between a birthday time crunch and lockdown, there was just no way to source a giant spring in two days, so [Jaryd] printed a cylinder with a hole in it to chuck into a drill and stand in for a lathe. Ten attempts later, and the perfect spring was in there somewhere.
We love the level of detail here — making a pudding-style keycap to match the main keyboard is the icing on this clacky cake. But the best part is hidden away inside: the stem of the giant switch actuates a regular-sized key switch because it’s funnier that way. Since it’s a giant Gateron red, it doesn’t exactly clack, but it doesn’t sound linear, either, mostly because you can hear the printed pieces rubbing together. Check out the build video after the break, and hit up the second video if you just want to hear the thing.
What is the fastest way to get thoughts out of your brain and into relative permanence? Well, yeah, probably a voice recorder. But after voice recorders comes typing in a distant second. Typing, especially QWERTY-style, has its limitations. The holy grail method it comes to typing quickly has got to be a chording keyboard, hands down. How can court reporters possibly keep up with everything that’s uttered during a trial? When you can press a few keys at the same time and type entire words, it’s not that difficult. It just takes a whole lot of memorization and muscle memory to get to that point.
So if you’re going to go for the glory, check out Chordie, a snazzy little chording keyboard that does it all with just 14 keys. [kbjunky] based Chordie on the Ginny, a cute little bare-bones bat-wing chording keyboard that uses the ASETNIOP chording engine originally built for soft keyboards.[kbjunky] added open-face trackball support via printed cradle, but it’s not necessary to use a trackball since there’s a pair of rotary encoders and a mouse layer.
This keyboard looks fantastic with its rocket ship MCU holder and its flush-mounted I/O expander breakout boards. Apparently [kbjunky] used polyimide tape to keep the solder from making blobs. It’s all there in the nice build guide.
We would probably argue that chording is not totally ergonomic. Sure, you barely move your hands or wrists, but chording itself can be hard on the digits, especially the pinkies. To that end, [kbjunky] used low-profile switches with light springs. Totally ergonomic or not, we have to admit that we love the idea of clacking along at 300 WPM someday far, far down the learning curve of ASETNIOP. Take a look at the key map, and check out [kbjunky]’s follow-up post if you want to see a demo.
Those tiny switches inside your mouse may be rated for 50 million clicks or more, but your fingers will likely wear out much sooner than that. Trust us — mouse arm and/or hand fatigue is no fun at all. If you’ve never had the displeasure, just try to imagine not being able to click or move the mouse around without extreme discomfort.
For this year’s Hackaday Prize, [BinSun] hacked together a capacitive mouse for a friend who has ALS. Instead of micro switches, it uses touch sensors to detect left and right clicks and LEDs to indicate when a click has taken place. That makes us think that haptic feedback could be cool, but it might get old quickly, or even worse, you might get used to it after a while and not feel it anymore.
This mouse would be a good alternative for anyone with limited mobility from any condition — ALS, arthritis, trigger finger, or carpal/cubital tunnel syndrome. It would also benefit anyone who wants to mouse much more stealthily, like in a library, a small shared space, or late at night. The only downside we can see is that you’d either have to get used to hovering your fingers, or else learn to rest them out of the way of the capacitive buttons. Otherwise, you’re gonna actuate them more often than you really want to.
If you want to build one of these, you’ll find a nice set of instructions over on IO that includes the minor modifications necessary to make the TTP223 capacitive modules sensitive enough to detect the presence of a finger. All you really have to do is bridge a couple of pads, add a capacitor and remove the SMD LEDs. [Bin Sun] says this is an ongoing project. He’s gotten a handful of beta testers involved at this point, and is planning to make a dedicated PCB pretty soon. Squeak past the break for a couple of brief demonstrations.
Having a high-quality mechanical keyboard is often a rite of passage in the computing world, with gamers and coders alike having strong opinions on the best devices. Even then, the standard keyboard layout can be substantially limiting, and often something a little extra and customizable is needed beyond even the highest-quality QWERTY keyboards. Reddit user [RonaldMcWhisky] was looking for a keyboard to use for macros, and discovered that it is possible to put cash register keyboards into service for any unique task.
Cash register keyboards have a number of advantages over a standard QWERTY design. They have big keys, the keys can be labeled, and the keys can be ordered in a way the user wants. The hardware is also cheap since cash registers are everywhere. Adapting one to work with a standard computer took a little bit of doing. Since this is /r/linuxhardware, you’re not going to find any Windows support here, but assuming you have the minimum system requirements of a Linux install to recognize the keyboard itself, a Python script can handle the events as the keys are pressed and interpret them in whatever way you want.
The actual hardware in this specific build was a Wincor Nixdorf TA85P — let us know in the comments if you’ve got one of those in your junk box. But the idea of using a cash register for a custom keyboard is interesting, and certainly a lot of work is already done for you if you don’t want to build your own custom keyboard from the ground up.
You may have noticed that I neglected to write an introductory paragraph for the last one of these — I was just too excited to get into the keyboards and keyboard accessories, I guess. I can’t promise that I’ll always have something to say up here, but this week I definitely do: thank you for all the tips I’ve received so far! The readers are what make Hackaday great, and this little keyboard roundup column is no exception. Fabulous fodder, folks!
Kamina Chameleon
This is [deʃhipu]’s daily driver. Vroom!Like any keyboard enthusiast worth their soldering iron, [deʃhipu] keeps trying for the ultimate keyboard — ideally, one that runs CircuitPython and makes a great daily driver for high-speed typing.
The latest version is the Kamina, a one-piece split with a SAMD21 brain that is slim and narrow without being cramped. [deʃhipu] started by splitting the Planck layout, spreading it, adding a number row, and eventually, an extra column of Kailh Chocs on the right hand. One-piece splits are great as long as the split suits your shoulders, because everything stays in place. When you do move it around, both halves move as one and you don’t have to mess with the positioning nearly as much as with a two-piece. And of course, since he designed it himself, it fits.
The really cool thing here is the center module concept. It’s functional, it looks nice, and as long as it doesn’t get in the way of typing, seems ideal. So far, [deʃhipu] has made a couple different versions with joysticks, encoders, and buttons, and is currently working on one with a Home button made for cell phones to take advantage of their built-in optical trackpads.
Esrille NISSE Looks Nice
This is the Esrille NISSE keyboard and it comes in two sizes! Okay, the two sizes don’t look that different, but the key spacing specs say otherwise. To me, this looks like an Alice with a better and ortholinear layout. These bat-wing beauties are new to me, but they’ve been around for a few years now and are probably difficult to stumble upon outside of Japan. Although Esrille doesn’t seem to make any other keyboards, they do make a portable PC built on the Raspberry Pi compute module.
I love me a one-piece split when its done properly, and this one seems to be pretty darn close to perfect. How do I know? You can print out a paper-craft version to try out either of the two sizes. I didn’t take it quite that far, but you can bet that I opened the smaller size’s image in a new tab and put my hands all over the screen to test the layout.
I especially like the thumb clusters and the inside keys on this thing, but I think the innermost thumb keys would be too painful to use, and I would probably just use my index finger. I would totally buy one of these, but they’re a little too expensive, especially since the smaller one costs more. (What’s up with that?) The great news is that the firmware is open-source. Between that and the paper-craft models, a person could probably build their own. Check out [xahlee]’s site for a review and a lot more pictures of the NISSE and similar keebs.
When most of us think of seismometers, our minds conjure up images of broken buildings, buckled roads, and search and rescue teams digging through rubble. But when [Subir Bhaduri] his team were challenged with solving real world problems as frugally as possible as part of the 2020 Frugal Science course, he thought of farmers in rural India for whom losing crops due to raiding elephants is a reality. Such raids can and have caused loss of life for humans and elephants alike. How could he apply scientific means to prevent such conflicts, and do it on the cheap?
We invite you to watch the video below the break to find out how it works. You’ll be impressed as we were by [Subir]’s practical application of engineering principles. And keep your eyes open for the beautiful magnetic damper hack. It’s a real treat!
With the recent release of Microsoft Flight Simulator on the Xbox Series X|S there’s never been a better time to get a flight stick for the console, and as you might imagine, there are a number of third party manufacturers who would love to sell you one. But where’s the fun in that?
If you’ve got a fairly well tuned 3D printer, you can print out and assemble this joystick by [Akaki Kuumeri] that snaps right onto the Xbox’s controller. Brilliantly designed to leverage the ability of 3D printers to produce compliant mechanisms, or flextures, you don’t even need any springs or fasteners to complete assembly.
The flexture gimbal works without traditional springs.
The free version of Thingiverse only lets you move the controller’s right analog stick, but if you’re willing to drop $30 USD on the complete version, the joystick includes additional levers that connect to the controller’s face and shoulder buttons for more immersive control. There’s even a throttle that snaps onto the left side of the controller, though it’s optional if you’d rather save the print time.
If you want to learn more about the idea behind the joystick, [Akaki] is all too happy to walk you through the finer parts of the design in the video below. But the short version is the use of a flextures in the base of the joystick opened up the space he needed to run the mechanical linkages for all the other buttons.
One of the coolest things about this build is the custom spring. Between a birthday time crunch and lockdown, there was just no way to source a giant spring in two days, so [Jaryd] printed a cylinder with a hole in it to chuck into a drill and stand in for a lathe. Ten attempts later, and the perfect spring was in there somewhere.
![[deshipu]'s DIY keyboard with various center modules](https://hackaday.com/wp-content/uploads/2021/08/deʃhipu-Kamina.png)
