We feature hundreds of projects here at Hackaday, and once they have passed by our front page and disappeared into our archives we often have no opportunity to return to them and see how they devel…

The personal computers in science fiction books, movies, and games are way cooler than the dinky pieces of hardware we’re stuck with in the real world. Granted the modern laptop has a bit mor…

We’re all familiar with the wide variety of Arduino development boards available these days, and we see project after project wired up on a Nano or an Uno. Not that there’s anything wro…

In the very late 1990s, something amazing was invented. White LEDs. These magical pieces of semiconductors first became commercially available in 1996, and by the early 2000s, you could buy a singl…

It seems to be a perennial among humans, the tendency among some to expect the End Times. Whether it was mediaeval Europeans who prepared for a Biblical Armageddon at the first sight of an astronom…

The scientific community cannot always agree on how much water a person needs in a day, and since we are not Fremen, we should give it more thought than we do. For many people, remembering to take …

You always hear that people talk about the weather. But it seems to us we see more clocks than we do weather stations. A case in point is [frank_scholl’s] clock made from an old hard drive. W…

A Tile is a small Bluetooth device which you can put on your keychain, for example, so that you can find your keys using an app on your phone. Each Tile’s battery life expectancy is one year …

[Mr. Carlson] bought a Globe Scout Model 40A ham radio transmitter at a hamfest. The 40A was a grand old transmitter full of tubes, high voltage, and a giant transformer. It is really interesting t…

An electromagnetic coil gun takes a line of electromagnets working together to form a moving electromagnetic field. These fields accelerate a project and boom, you have electricity moving matter, o…

USB sockets providing 5 VDC are so ubiquitous as a power source that just about any piece of modern portable technology can use them to run or charge. USB power is so common, in fact, that it&#8217…

Another holy scroll for the Church of Robotron. PoC || GTFO is a semi-annual journal of hardware exploitation, and something you must read. About a year ago, No Starch Press released the first Bibl…

In the early 1970s, the American space program was at a high point, having placed astronauts upon the surface of the moon while their Soviet competitors had not taken them beyond an Earth orbit. It…

Among all the timepieces that we feature here at Hackaday, surprisingly we bring you relatively few clocks. That might seem an incomprehensible statement given the plethora of, well, clocks, that a…

Returning a piece of retro hardware to factory condition is generally a labor of love for the restorationist. A repair, on the other hand, is more about getting a piece of equipment back into servi…

You shouldn’t transmit encryption keys over Bluetooth, but that’s exactly what some popular wireless-enabled microcontrollers are already doing. This is the idea behind Screaming Channe…

The AND!XOR team have somehow managed to outdo themselves once again this year. Their newest unofficial hardware badge for DEF CON 26 just arrived. It’s a delightful creation in hardware, sof…

Many of us have aspirations of owning a tube amp. Regardless of the debate on whether or not tube audio is nicer to listen to, or even if you can hear the difference at all, they’re gorgeous …

Hackaday brought you a first look the Arduino MKR Vidor 4000 when it announced. Arduino sent over one of the first boards so now we finally have our hands on one! It’s early and the documenta…

We just wrapped up the Power Harvesting challenge in the Hackaday Prize, and with that comes some solutions to getting power in some very remote places. [Vijay]’s project is one of the best, …

[Paul] likes a precise oscillator. His recent video shows a crystal oscillator with a “watch crystal” and a CMOS counter, the CD4060. Using such a circuit can produce very stable freque…