Why The Smart Home Bubble Popped

May 21, 2026 by 2 Comments

Circa 2015 or so, it seemed like you couldn’t move a finger without being bombarded with ads and articles about ‘smart homes’ and the ‘internet of things’ — all of which would make our lives so much easier and more automated. Fast-forward a decade and this dream has mostly evaporated along with many of the players in the space. Why this happened is the topic of a recent video by [Caya].

An interesting bit of context that the video starts off with is that home automation really kicked off back in 1975, when the X10 protocol and related devices using power lines for signaling began being sold. These fully integrated solutions generally worked reasonably well, but what all changed when the IoT and ‘smart home’ craze kicked off and brought with it an explosion of new standards.

Over the past decade we have seen the concept of a ‘smart home’ collapse into a nightmare of abandoned IoT devices, subscription services, forced ads, privacy violations, and an increasingly more congested 2.4 GHz spectrum that everything from WiFi and Zigbee to Bluetooth and others ended up competing for, with a corresponding collapse in reliability of data transmissions.

As raised in the video, a big issue is that of the financial viability of running the remote services for a smart home solution, even if this is the part that should make it as plug-and-play as a 1990s-era smart home solution. To the average user setting up their own locally hosted smart home solution isn’t really a straightforward option.

Although at the end [Caya] demonstrates using Home Assistant (HA) as a locally hosted alternative, this is still not something that a non-techie will be able to set up or maintain. Even if you shell out a cool two-hundred clams for the Home Assistant Green plug-and-play hardware solution, the average person will be lost the second any of the prescribed steps in provided documentation do not work. Woe to whoever is the person who is ‘good with computers’ in those cases.

Ultimately another problem with ‘smart homes’ is that they’re really not that smart, as you can definitely set up all kinds of rules in HA and similar solutions, but this is more painstaking manual automation with all the excitement of programming PID controllers. Having an actual intelligence behind the system that could react to what’s happening would make it a far easier sell, yet which is where all the ‘smart assistants’ like Alexa keep falling flat.

Currently [Caya] has set up his HA-based lighting configuration to be used by OpenClaw ‘agentic AI’, as a way to add some actual ‘smarts’, but it’s telling that he hasn’t integrated the smart lock of his apartment into the system yet. Nobody wants to have the OpenClaw agent tell you that it ‘cannot open the front door’ for you, after all.

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Tech In Plain Sight: The Mechanics Of String Trimmers

May 21, 2026 by 7 Comments

My old friend Jeff was always vocally upset that he didn’t come up with the idea of a string trimmer, commonly known as a Weed Eater or Weed Whacker. On the one hand, the idea is totally simple: spin some nylon line and cut grass and other relatively soft things. But, it turns out, that making the device actually usable requires a little bit of mechanical engineering.

Of course, the noisy part is a motor. The motor — driven by an engine, a battery, or a power cord — spins a flexible nylon line fast enough that the line becomes rigid from centrifugal force. That’s not the important part.

The humble spool at the bottom of the trimmer is where decades of mechanical engineering, questionable patents, consumer frustration, and genuine cleverness all meet. The earliest string trimmers were primitive. [George Ballas], who patented the Weed Eater in the early 1970s, reportedly got the idea from the rotating brushes in a car wash. Attach flexible cords to a spinning head, and they become cutting tools. In fact, the prototype used a tin can for the head. Elegant. But once the line wears down — which it does constantly — you need a way to expose fresh line. That turns out to be harder than it sounds.

The Simplest System

The easiest approach is fixed-length line. Some trimmers still work this way. You cut short pieces of heavy line (or buy it precut) and insert them into holes in the head. No spool. No springs. No moving parts.

These systems are rugged and are popular on commercial units designed to survive abuse. They also work well with thicker lines or even plastic blades. But they are annoying because every time the line wears out, you stop working and manually replace it. Spool-based systems became dominant very quickly.

The basic spool idea is straightforward enough. Wind a long nylon filament onto a reel. Some reels have two sections to feed line out on two sides of the rotating head. As the line wears away, feed out more line from the spool. But how do you do that while the thing is spinning at several thousand RPM?

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Transforming Lamp Built With LED Filaments

May 21, 2026 by 7 Comments

[Nick Electronics] had an idea to build a stylish lamp that could transform its shape while lit. This goal was achieved beautifully with the aid of many, many filament LEDs.

If you’re unfamiliar with filament LEDs, they’re basically thin plastic filaments stuffed with lots of individual LEDs that are very close together. This effectively creates a continuous, flexible, glowing string that can be used for all sorts of creative purposes.

[Nick] packed the lights into an interlocking stack of PCBs that make up the lamp’s structure. Each PCB layer hosts four filaments mounted around the outer edge, and has a pin that locks into a groove in the next layer to allow them to tug each other around as they turn. The PCBs rotate around a central shaft, with power passed from one to the other via interlinking wires. Drive is via a stepper motor on top of the lamp, controlled by an A4988 driver. There’s also an ATmega48 microcontroller onboard, which is the brains of the operation. A DC-DC converter onboard steps up the 5 V input voltage from USB-C to 10 volts for the stepper motor.

It’s neat to watch the lamp in action, glowing and slowly shifting in patterns as the layers catch and rotate in and out of alignment. We’ve seen interesting builds in this vein before, like this fantastic origami lamp from a few years ago.

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Magnets Are Bad For Hardware Again

May 21, 2026 by 11 Comments

If you were around tech in the bad old days, magnets could be really bad news. They were fine on the fridge, no problem at all. Put one near a floppy disk, or a hard drive, or even a computer monitor, though, and you were in for some pain. You’d lose data, possibly permanently destroy a disk or drive, or you’d get ugly smeary rainbow effects all over your screen.

The solid state revolution has eliminated a lot of these problems. We all use SSDs, flash drives, and LCD monitors now, all of which care a lot less about flirting with magnets. However, the same can’t be said about all our modern hardware, for a magnet could cause your smartphone some major grief indeed.

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Wayland Comes To Minecraft

May 21, 2026 by 1 Comment

The overall adoption and implementation of Wayland — intended as a replacement for the decades-old X11 windowing system — in the Linux world has been full of fits and starts. But perhaps the most surprising adopter we’ve seen yet is this Minecraft patch which brings a full Wayland compositor into the game.

This software project, called Waylandcraft, is the brainchild of a developer known as [EVVIE] who spent a considerable amount of time and effort getting this to work. According to a post on GamingOnLinux it was also done the old fashioned way, with no AI involved.

Users wanting to run this compositor need a Linux system to run Minecraft, as well as the Fabric mod loader and a few other tools. For those wishing to show off to their friends, though, they’ll need to do so in-person as streaming the Wayland windows to other users in the server is not possible.

With everything running, you’ll be able to launch arbitrary programs and have the windows placed within the Minecraft world as if they were in-game. Users can place the windows in any orientation and can interact with them like any other desktop environment. [EVVIE] has released all of the code under the GPL for anyone wanting to try it out or build on the project itself.

If you haven’t spun up a Minecraft server at all yet, all you really need is something like an ESP32 to get started.

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Building A Better Automotive Rotary Controller

May 21, 2026 by 9 Comments

If you’ve ever spent time in a modern BMW, you’ve probably fussed about with the goofy iDrive controller. It’s a rotary knobbery slidery thing that just never really feels that good to use. [Garage Tinkering] was inspired to try and build a better version for his own car.

The first order of business was to choose the right knob as the core of the build. [Garage Tinkering] eventually landed on the Crowpanel 1.28″ rotary knob which integrates a push-button encoder, a round screen, and an ESP32-S3 all into one convenient package. He then set about designing a 3D printed housing that would integrate it into the vehicle’s interior, along with a diffuser ring for the knob’s inbuilt LEDs and some additional buttons for added control. The goal is to use the rotary control as the human interface for a broader system being implemented in the vehicle, which will feature a larger infotainment screen and multiple digital gauges. The rotary control will allow switching things like interior and underglow lighting, and display of other vehicle parameters.

The cool thing about building your own gear is that you can make it work exactly the way that suits you. We’ve seen great hacks in this realm before, too, like this rad car data display.

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Yes, that's a MacBook Neo. The important parts, anyway.

Unlocking The True Power Of A MacBook Neo By Cooling It

May 20, 2026 by 17 Comments

Mobile devices generally have one Achilles’ heel when it comes to computing power: thermal throttling. Outside of bulky desktop and server systems, chips have to run at a fraction of their true potential to keep from cooking themselves to death. The MacBook Neo, with its iPhone-derived A18 processor, is no exception. Since Apple’s budget offering first came out, though, there’s been an arms race on the benchmark sites to see just how far you can push it, and [Salem Techsperts] briefly claimed the accolade of ‘fastest MacBook Neo’, and of course provided a video showing how it’s done.

It’s hardly rocket science: you cool the chip. Outdoing Apple’s cost-cutting design in that regard is not difficult; you can evidently get notable performance increases just with decent thermal paste. [Techsperts] goes further than that, combining PTM7950 phase-change thermal paste with a peltier cooler to actively suck watts of heat out of the SOC, heatsinks that likely weigh more than the laptop itself, and an industrial air blower to serve as the highest CFM air cooler we’ve probably ever seen.

By this point it’s hardly a laptop anymore, with the logic board removed to sit inside a cooling sandwhich– water cooled with the peltier on one side, and air-cooled by the blower on the other–but the point wasn’t to have a light, practical daily-driver here. Apple already covered that. The point was to go fast. With 41.47% higher Cinebench scores than the stock laptop, and a power draw of 11W compared to the stock 4W, we can say he’s succeeded in that. Interestingly enough, [Techsperts] could not best the top 3DMark score, in spite of his Cinebench success. It’s possible he just lost the silicon lottery when it comes to the GPU section of this particular A18 chip, but if you have another theory, be sure to let us know in the comments.

Of course you could go colder. For all the absurd impracticality of this setup, it’s not liquid nitrogen cooling, which means there are still gains to be made-– we saw a Pi 5 clocked at 3.6GHz that way last year— and that just means the crown is laying in the gutter, waiting for anyone to pick it up. Unless they already have by the time this prints. In which case, all hail the cryogenic king, and please send us a tip so we can hail their glory.

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