Technology

If you have a Raspberry Pi connected to an LED matrix, you might think about creating a simple oscilloscope. Of course, the Pi isn't really well-suited for that and neither is an LED matrix, so [Thoma......

Much like vinyl records, tube amplifiers are still prized for their perceived sound qualities, even though both technologies have been largely replaced otherwise. The major drawback to designing aroun......

If you're hoping that this AI-powered logic analyzer will help you quickly debug that wonky digital circuit on your bench with the magic of AI, we're sorry to disappoint you. But if you're in luck if ......

The bane of 3D printing is what people commonly call bed leveling. The name is a bit of a misnomer since you aren't actually getting the bed level but making the bed and the print head parallel. Many ......

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The history of the Sinclair ZX Spectrum is one that mirrors the fortunes of the British home computer industry, one of an early 8-bit boom followed by a sharp decline as manufacturers failed to capita......

Hackaday readers might know [Victor Scheinman] as the pioneer who built some of the first practical robot arms. But what was a kid like that doing in high school? Thanks to a film about the 1958 New Y......

This isn't like the cool AI everyone's getting caught up with these days, but we're sure it will make a fun party gimmick nonetheless.The premise of [CrazyScience]'s game is really simple, with th......

2022 was a harrowing year in a long line of harrowing years. A brutal war in Europe raised the prospect of nuclear war as the leaders behind the invasion rattled sabers and made thinly veiled threats ......

In the home of the future, everything is automated. Some of us are already there, in dwellings fully tricked-out with IoT and smart home devices. But they don't somehow look as futuristic as a home in......

The odds are that if you've heard about application-specific integrated circuits (ASICs) at all, it's in the context of cryptocurrency mining. For some currencies, the only way to efficiently mine the......

Over the years, we've seen some modern microcontrollers turn out to be 5V-tolerant - now, RP2040 joins the crowd. Half a year ago, when we covered an ISA card based on a Pi Pico, [Eben Upton] left a c......

We've seen some absolutely gorgeous freeform circuit sculptures. There's a mystic quality to taking what has normally been hidden away for safety and reliability reasons and putting it on display for ......

We're no strangers to unusual clocks here at Hackaday, and some of our favorites make time a little more tangible like [Kyle Rankin]'s knitting clock.Inspired by our coverage of [Siren Elise Wilhe......

When we first saw this 1944 US Office of Education film about hand soldering, we figured it might still have some good information. Well, perhaps it does, but the 1944 soldering was with a giant iron,......

Vintage typewriters can be beautiful and elegant devices. But there's a limit to their value if, as with the 1903 Remington owned by [Daniel Ross], they are fire-damaged and have a seized mechanism. W......

Tattoos are an interesting technology. They're a way of marking patterns and designs on the skin that can last for years or decades. All this, despite the fact that our skin sloughs off on a regular b......

Despite having been technologically obsolete for a decade or two, analog photography is still practiced by hobbyists and artists to achieve a particular aesthetic. One might imagine a similar thing ha......

If you know anything about he design of a CPU, you'll probably be able to identify that a critical component of all CPUs is the Arithmetic Logic Unit, or ALU. This is a collection of gates that can do......

In 1996, the 3Dfx VooDoo VGA chipset changed computer graphics forever. Because of the high cost of memory, most of the boards had only 4 MB of memory -- which seemed a lot back then. However, the chi......

For most of us, vacuum tubes haven't appeared in any of our schematics or BOMs in -- well, ever. Once mass-manufacturing made reliable transistors cheap enough for hobbyists, vacuum tubes became prett......

Scooter hacking is wonderful - you get to create a better scooter from a pre-made scooter platform, and sometimes you can do that purely through firmware modifications. Typically, hackers have been up......

Projects can often spiral, not down or up, but out. For [Derek] he started playing around with a 3D-printed escapement mechanism and thought it was a wonderful bit of engineering. But with a simple dr......

When making a PCB informative and self-documenting, there's often just not enough space to silkscreen all the labels you want, and slowly but surely, you collect a set of tricks: using different throu......

[Chris Combs] is a full time artist who loves using technology to create unique art projects and has been building blinky artwork since about a decade now. In his 2022 Supercon talk...

Upgrading and repairing vintage laptops is often a challenge -- even if their basic hardware is compatible with ordinary PCs, they often use nonstandard components and connectors due to space constrai......

Historically, nature has used trees to turn carbon dioxide back into oxygen for use by living creatures. The trees play a vital role in the carbon cycle, and have done so for millennia. Recently, huma......

RealSense cameras have been a fascinating piece of tech from Intel -- we've seen a number of cool applications in the hacker world, from robots to smart appliances. Unfortunately Intel did discontinue......

There are projects you create to share with the world, but there are also those you do just because you want something for yourself. Lucky for us, [Dietrich-L]'s 30-year-long project to create CPM-65,......

Flexible PCBs have become increasingly common in both commercial devices and DIY projects, but Panasonic's new stretchable, clear substrate for electrical circuits called Beyolex takes things a step f......

Machine learning is supposed to help us do everything these days, so why not electron microscopy? A team from Ireland has done just that and published their results using machine learning to enhance S......

Dash cameras are handy as they provide a video recording of interactions on the road. However, their utility comes from the fact that they are always recording while driving. This always-on means powe......

Using cheap and powerful server expansion cards in your desktop builds is a tempting option for many hackers. Of course, they don't always fit mechanically or work perfectly; for instance, some server......

One of the devices swallowed up by the smartphone for the average person is the handheld camera, to the extent that the youngsters are reported to be now rediscovering 20-year-old digital cameras for ......

In the automotive world, batteries are quickly becoming the energy source of the future. For heavier-duty tasks, though, they simply don't cut the mustard. Their energy density, being a small fraction......

One day in the future, we may interact with our electronic devices not with physical input or even voice commands, but simply by thinking about what we want to do. Such braincomputer interfaces (BC......

Concrete is an incredibly useful and versatile building material on which not only today's societies, but also the ancient Roman Empire was built. To this day Roman concrete structures can be found in......

Minecraft servers are famously single-threaded and those who host servers for large player bases often pay handsomely for a server that has gobs of memory and ripping fast single-core performance. Pre......

Pneumatic tires provide a great ride, great grip, and yet have one fatal flaw -- they're always getting punctured and leaving you stranded. [The Q] decided to solve this problem with a unique design: ......

If you felt in your heart that Hackaday was a place that would forever be free from projects that require extensive choreography to pull off, we're sorry to disappoint you. Because you're going to nee......

If you're wondering why there was no newsletter last weekend, it was because we had our hands full with Hackaday Berlin. But boy, was it worth it! Besides being the launch party for the tenth annual......

The amateur radio community often gets stereotyped as a hobby with a minimum age requirement around 70, gatekeeping airwaves from those with less experience or simply ignoring unfamiliar beginners. Wh......

When it comes to placing a project underwater, the easy way out is to just stick it in some sort of waterproof container, cover it with hot glue, and call it a day. But when you need to keep water out......

When the microwave oven started to gain popularity in the 60s and 70s, supporters and critics alike predicted that it would usher in the end of cooking as we knew it. Obviously that never quite happen......

When we first started 3D printing, we used ABS and early slicers. Using supports was undesirable because the support structures were not good, and ABS sticks to itself like crazy. Thankfully today's s......

Recently, the European Commission (EC) adopted a new proposal intended to enable and promote the repair of a range of consumer goods, including household devices like vacuum cleaners and washing machi......

Imagine you're sitting on a nice bench, the sun shines warmly, and a bus pulls up. You're headed to Stendal from Osnabrck, how can you tell if you should get on that bus? [Julian Vanecek] is trying ......

Researchers at North Carolina State University have created a soft robot that moves in a distinctly caterpillar-like manner. As detailed in the research paper in Science Advances by [Shuang Wu] and co......

You know how it is. You have an older computer, and you can't run the latest software on it. Time to upgrade, right? Well, if you have been in this situation a very long time, [ryomuk] may have an ans......

Sad news in the tech world this week as Intel co-founder Gordon Moore passed away in Hawaii at the age of 94. Along with Robert Noyce in 1968, Moore founded NM Electronics, the company that would late......