Kinethreads: A Low Cost Haptic Exo-Suit

September 27, 2025 by Zoe Skyforest 9 Comments

There have been lots of haptic vest devices over the years, though the vast majority have been very simple. Many existing suits pack in a few speakers or vibration motors to give feedback to the wearer. Kinethreads aims to go further, serving as a full-body haptic suit using an innovative mechanical setup.

Kinethreads is effectively an exosuit, which mounts several motorized pulley systems to the wearer’s body. These pulleys are attached to the user’s hands, feet, back, torso, and head via strings. By winding in the pulleys, it’s possible for the device to effectively tug on different parts of the body, creating rich, dynamic physical feedback that can easily be felt and interpreted by the user. The whole system weighs 4.6 kilograms—not light, but very practical. It can also run for 6 hours on a single charge. The whole suit can be donned or doffed in under a minute. Cost is stated to be under $500.

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Bluetooth Earrings Pump Out The Tunes

September 27, 2025 by Zoe Skyforest 14 Comments

When you think of a Bluetooth speaker, you’re probably picturing a roughly lunchbox-sized device that pumps out some decent volume for annoying fellow beachgoers, hikers, or public transport users. [Matt Frequencies] has developed something in an altogether different form factor—tiny Bluetooth speakers you can dangle from your earlobes! They’re called Earrays, and they’re awesome.

The build started with [Matt] harvesting circuit boards from a pair of off-the-shelf Bluetooth earbuds. These are tiny, and perfect for picking up a digital audio stream from a smartphone or other device, but they don’t have the grunt to drive powerful speakers. Thus, [Matt] hooked them up to a small Adafruit PAM8302A amplifier board, enabling them to drive some larger speaker drivers that you can actually hear from a distance. These were then installed in little 3D printed housings that are like a tiny version of the speaker arrays you might see hanging from the rigging at a major dance festival. Throw on a little earring hook, and you’ve got a pair of wearable Bluetooth speakers that are both functional, fashionable, and very audible!

[Matt] has continued to develop the project, even designing a matching pendant and a charging base to make them practical to use beyond a proof-of concept. Despite the weight of the included electronics, they’re perfectly wearable, as demonstrated by [DJ Kaizo Trap] modelling the hardware in the images seen here.

We’ve seen plenty of great LED earrings over the years, but very few jewelry projects in the audio space thus far. Perhaps that will change in future—if you pursue such goals, let us know!

Meta’s Ray-Ban Display Glasses And The New Glassholes

September 22, 2025 by Maya Posch 136 Comments

It’s becoming somewhat of a running gag that any device or object will be made ‘smart’ these days, whether it’s a phone, TV, refrigerator, home thermostat, headphones or glasses. This generally means somehow cramming a computer, display, camera and other components into the unsuspecting device, with the overarching goal of somehow making it more useful to the user and not impacting its basic functionality.

Although smart phones and smart TVs have been readily embraced, smart glasses have always been a bit of a tough sell. Part of the problem here is of course that most people do not generally wear glasses, between people whose vision does not require correction and those who wear e.g. contact lenses. This means that the market for smart glasses isn’t immediately obvious. Does it target people who wear glasses anyway, people who wear sunglasses a lot, or will this basically move a smart phone’s functionality to your face?

Smart glasses also raise many privacy concerns, as their cameras and microphones may be recording at any given time, which can be unnerving to people. When Google launched their Google Glass smart glasses, this led to the coining of the term ‘glasshole‘ for people who refuse to follow perceived proper smart glasses etiquette.

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Build Your Own Pip-Boy Styled Watch

September 2, 2025 by Donald Papp 6 Comments

[Arnov Sharma]’s latest PIP-WATCH version is an homage to Pip-Boys, the multi-function wrist-mounted personal computers of Fallout.

We like the magnetic clasp on the back end.

[Arnov] has created a really clean wearable design with great build instructions, so anyone who wants to make their own should have an easy time. Prefer to put your own spin on it, or feel inspired by the wrist-mounted enclosure? He’s thoughtfully provided the CAD files as well.

Inside the PIP-WATCH is a neat piece of hardware, the Lilygo T-Display-S3 Long. It’s an ESP32-based board with a wide, touch-enabled, color 180 x 640 display attached. That makes it a perfect fit for a project like this, at least in theory. In practice, [Arnov] found the documentation extremely lacking which made the hardware difficult to use, but he provides code and instructions so there’s no need to go through the same hassles he did.

In addition to the Hackaday.io project page, there’s an Instructables walkthrough.

If you put your own spin on a Pip-boy (whether just a project inspired by one, or a no-detail-spared build of dizzying detail) we want to hear about it, so be sure to drop us a tip!

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Spatial Audio In A Hat

August 5, 2025 by Zoe Skyforest 5 Comments

Students from the ECE4760 program at Cornell have been working on a spatial audio system built into a hat. The project from [Anishka Raina], [Arnav Shah], and [Yoon Kang], enables the wearer to get a sense of the direction and proximity of objects in the immediate vicinity with the aid of audio feedback.

The heart of the build is a Raspberry Pi Pico. It’s paired with a TF-Luna LiDAR sensor which is used to identify the range to objects around the wearer. The sensor is mounted on a hat, so the wearer can pan the sensor from side to side to scan the immediate area for obstacles. Head tracking wasn’t implemented in the project, so instead, the wearer uses a potentiometer to indicate to the microcontroller the direction they are facing as they scan. The Pi Pico then takes the LIDAR scan data, determines the range and location of any objects nearby, and creates a stereo audio signal which indicates to the wearer how close those objects are and their relative direction using a spatial audio technique called interaural time difference (ITD).

It’s a neat build that provides some physical sensory augmentation via the human auditory system. We’ve featured similar projects before, too.

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Brilliant Labs Has New Smart Glasses, With A New Display

August 4, 2025 by Donald Papp 16 Comments

Brilliant Labs have been making near-eye display platforms for some time now, and they are one of the few manufacturers making a point of focusing on an open and hacker-friendly approach to their devices. Halo is their newest smart glasses platform, currently in pre-order (299 USD) and boasting some nifty features, including a completely new approach to the display.

Development hardware for the Halo display. The actual production display is color, and integrated into the eyeglasses frame.

Halo is an evolution of the concept of a developer-friendly smart glasses platform intended to make experimentation (or modification) as accessible as possible. Compared to previous hardware, it has some additional sensors and an entirely new approach to the display element.

Whereas previous devices used a microdisplay and beam splitter embedded into a thick lens, Halo has a tiny display module that one looks up and into in the eyeglasses frame. The idea appears to be to provide the user with audio (bone-conduction speakers in the arms of the glasses) as well as a color “glanceable” display for visual data.

Some of you may remember Brilliant Labs’ Monocle, a transparent, self-contained, and wireless clip-on display designed with experimentation in mind. The next device was Frame, which put things into a “smart glasses” form factor, with added features and abilities.

Halo, being in pre-release, doesn’t have full SDK or hardware details shared yet. But given Brilliant Labs’ history of fantastic documentation for their hardware and software, we’re pretty confident Halo will get the same treatment. Want to know more but don’t wish to wait? Checking out the tutorials and documentation for the earlier devices should give you a pretty good idea of what to expect.

Close-up view of the Solaria Ultra Grand Complication watch

Time, Stars, And Tides, All On Your Wrist

July 18, 2025 by Heidi Ulrich 30 Comments

When asked ‘what makes you tick?’ the engineers at Vacheron Constantin sure know what to answer – and fast, too. Less than a year after last year’s horological kettlebell, the 960g Berkley Grand Complication, a new invention had to be worked out. And so, they delivered. Vacheron Constantin’s Solaria Ultra Grand Complication is more than just the world’s most complicated wristwatch. It’s a fine bit of precision engineering, packed with 41 complications, 13 pending patents, and a real-time star tracker the size of a 2-Euro coin.

Yes, there’s a Westminster chime and a tourbillon, but the real novelty is a dual-sapphire sky chart that lets you track constellations using a split-second chronograph. Start the chrono at dusk, aim your arrow at the stars, and it’ll tell you when a chosen star will appear overhead that night.

Built by a single watchmaker over eight years, the 36mm-wide movement houses 1,521 parts and 204 jewels. Despite the mad complexity, the watch stays wearable at just 45mm wide and 15mm thick, smaller than your average Seamaster. This is a wonder of analog computational mechanics. Just before you think of getting it gifted for Christmas, think twice – rumors are it’ll be quite pricey.