Spray-On Keyboard Is As Light As It Gets

We’ve all seen those ‘nothing’ keyboards, where the keys themselves are not much more than projected lasers, and users are asked to ritually beat their poor fingertips into the table — which has little give and even less clack. Well, a team at the Korea Advanced Institute of Science and Technology have come up with a way to eschew the keyboard altogether.

Essentially, the user wears a thin, breathable mesh of silver nanowires coated in gold, which is then embedded in a polyurethane coating. The mesh is sprayed onto their forearms and hands on the spot, and the mesh terminates in a small enclosure that is also worn on the skin. This contains a small Bluetooth unit that beams data back to a computer, a machine, or potentially another user wearing the same type of unit.

As the skin stretches and contorts, the mesh senses small electrical changes within. These changes become meaningful with applied AI, which maps the changes to specific gestures and manual tasks. To do this, the team started with teaching it to distinguish between patterns from tasks like typing on a phone, typing on a regular keyboard, and then holding and interacting with six differently-shaped simple objects.

The team isn’t stopping there — they plan to try capturing a larger range of motion by using the nanomesh on multiple fingers. In addition to facilitating communication between humans and machines, this could leave a huge fingerprint on gaming and VR.

Lisp Runs This Microcontroller Pendant

As a programming language, Lisp has been around longer than any other active language except for Fortran. To anyone who regularly uses it, it’s easy to see why: the language allows for new syntax and macros to be created fluidly, which makes it easy to adapt it to new situations, like running it on a modern Atmel microcontroller to control the LEDs on this star pendant.

The pendant has simple enough hardware — six LEDs arranged around the points of the star, all being driven by a small ATtiny3227 operating from a coin cell battery. This isn’t especially spectacular on it’s own, but this particular microcontroller is running an integer version of a custom-built Lisp interpreter called uLisp. The project’s creator did this simply because of the whimsy involved in running a high-level programming language on one of the smallest microcontrollers around that would actually support the limited functionality of this version of Lisp. This implementation does stretch the memory and processing capabilities of the microcontroller quite a bit, but with some concessions, it’s able to run everything without issue.

As far as this project goes, it’s impressive if for nothing other than the ‘I climbed the mountain because it was there’ attitude. We appreciate all kinds of projects in that same vein, like this Arduino competitor which supports a programming language with only eight commands, or this drone which can carry a human.

Custom-designed photoplethysmogram designed to fit in ear like an ear bud

Breathe Through Your Ears?

With all the attention given to heart rate monitoring and step counting, respiratory rate monitoring is often overlooked. Smartwatches are starting to incorporate respiratory rate monitoring more and more these days. However, current devices often simply look at breaths per minute without extracting more interesting features of the respiratory waveform which could give us more insight into our bodies than breaths per minute could alone. [Davies] and his team decided they wanted to change that by making an earbud that can measure respiratory rate. Continue reading “Breathe Through Your Ears?”

A prosthetic eye anodized green around the edges with a yellow and blue "iris" surrounding an LED center.

Skull Lamp Illuminates The Cyberpunk Future

Cyberpunk is full of characters with cool body mods, and [bsmachinist] has made a prosthetic eye flashlight (TikTok) that is both useful and looks futuristic. [via Reddit]

[bsmachinist] has been machining titanium prosthetic eyes for over five years now, and this latest iteration, the Skull Lamp, has a high brightness LED that he says is great for reading books at night as well as any other task you might have for a headlamp. Battery life is reported as being 20 hours, and the device is switched by passing a magnet (Instagram) near the prosthetic.

We love seeing how prosthetics have advanced in the last few years with the proliferation of advanced tools for makers. Some other interesting prosthetics we’ve covered are this DIY Socket for Prosthetics with a built-in charger and power supply and several different prosthetic projects for kids including these Heroic Prosthetics by Open Bionics, the E-Nable Alliance, and a Kid Who Designed his Own Prosthetic.

Continue reading “Skull Lamp Illuminates The Cyberpunk Future”

2022 Cyberdeck Contest: A Wrist-Worn Deck With A Hybrid Interface

You’d think that now that the 2022 Cyberdeck Contest is wrapped up, we’d stop writing about it. Sorry, but no — there were so many great entries that we just can’t help but keep focusing on them. And this wearable hybrid interface cyberdeck has a look we love so much that we can’t resist spotlighting it.

We wouldn’t go so far as to call the “hgDeck” a PipBoy, but [Igor Brkić]’s wrist-worn deck certainly bears some similarity with to the Fallout-famous terminal. In fact, the design for this one is based on his earlier hgTerm Raspberry Pi mini-laptop, which honestly would have made a great entry all by itself. But while the two version shares some similarities, the hgDeck puts a serious twist on the form factor. In the stowed configuration, the Pi Zero W puts the main display, a 3.5″ Waveshare TFT, to work using the resistive touchscreen interface. But with the flick of a finger, a motor flips the monitor up on a set of pantograph linkages, which exposes a compact Bluetooth keyboard. Another touch stows the screen and returns you to touchscreen-only operation.

There were a fair number of wrist-worn decks in the contest’s final results, and while this one didn’t win, [Igor]’s build has got to be one of the cooler designs we’ve seen, one that almost seems practical in the real world.

Continue reading “2022 Cyberdeck Contest: A Wrist-Worn Deck With A Hybrid Interface”

Big Brother Or Dumb Brother? Bus Drivers In Beijing Are Forced To Wear “Emotional Monitors”

Humans aren’t always great at respecting each other’s privacy. However, common sense says there’s a clear boundary when it comes to the thoughts in one’s own head and the feelings in one’s heart.

For bus drivers in Beijing though, it seems that’s no longer the case. These professional drivers are now being asked to wear emotional monitors while on the job, raising concerns from both legal and privacy advocates. But the devices aren’t really anything more than workout monitors, and whether they can actually make good on their Orwellian promise remains to be seen.

In Your Head, In Your Head!

The monitoring wristbands have been rolled out to some of Beijing’s long-distance bus drivers. Credit: Cypp0847, CC-BY-SA-4.0

When George Orwell wrote 1984, it was only 1949. However, he was able to foresee a world in which surveillance was omnipresent and inescapable. He also envsioned the concept of thoughtcrime, where simply contemplating the wrong things could get you in serious trouble with the authorities.

As we all know, Orwell was way off – these predictions didn’t become reality until well into the 2000s. In the latest horrifying development, technologies now exist that claim to be able to monitor one’s emotional state. Now, China’s transportation sector is rushing to push them on their workforces.

Long-distance bus drivers in Beijing are now being told to wear electronic wristbands when on the job. These wristbands claim to be able to capture the wearer’s emotional state, monitoring it on behalf of the employer. The scheme was the idea of the Beijing Public Transport Holding Group. The state-run organization claims the technology is intended for the safety of the public, and a trial of the wristbands began in July this year. Continue reading “Big Brother Or Dumb Brother? Bus Drivers In Beijing Are Forced To Wear “Emotional Monitors””

2022 Cyberdeck Contest: A Chorded-Keyboard Wearable Cyberdeck

Those of us who are unreformed hunt-and-peck typists are often baffled by the keyboard skills of those with more formal training. Home row? Specific fingers for specific keys? The mind boggles. And chorded keyboards? That’s straight-up witchcraft!

But, there are times when only a chorded keyboard will do, such as when you want to build a wrist-wearable cyberdeck like this one. It’s called the ComputeDeck-B3, and it comes to us from [Nate Damen], better known as someone who goes around with a TV on their head, which sort of fits with the total device immersion this cyberdeck enables.

The deck is designed to fit on the forearm in the position of function — basically, the posture your arm, wrist, and hand take on naturally when everything is relaxed. There’s a small display mounted at a good angle for viewing, but the star of the show is the keyboard. The fingers slip inside a slot to find three mechanical key switches positioned for each finger. It looks like the idea is to use the finger pad, fingertip, and fingernail to press each key, and then to press different combinations of keys to make specific characters. The thumb isn’t left out of the action; there’s a five-position “hat switch” located right where the thumb naturally falls, to add to the input possibilities. The short video below gives a tour and some background on design goals, and why this isn’t really a PipBoy.

For as much as chording isn’t our thing, we can see how this could work for input on the fly. And we have to compliment [Nate] on paying attention to ergonomics here, even though extending the fingers to press the nail buttons seems like a somewhat unnatural movement. We’d love a follow-up on this after he’s had some time to put it through its paces. Continue reading “2022 Cyberdeck Contest: A Chorded-Keyboard Wearable Cyberdeck”