2025 Component Abuse Challenge: Dawg Gone LED Tester The Hackaday 2025 Component Abuse Challenge is all about abusing electronic components in the service of making them do things they were never intended to. It’s not the 2025 Food …read more #hacking #projects image
Concrete Lathe Turns Metal Full disclosure. If you want a lathe capable of turning metal stock, you probably should just buy one. But what fun is that? You can do like [kachurovskiy] and build …read more #hacking #projects image
Mesmerizing Marble Runs from Procedural Generation There are few things that can keep a certain kind of mechanically-inclined mind entranced as well as a marble run, and few structures that look as interestingly organic as procedurally-generated …read more #hacking #projects image
Target the Best AA, and Take No Flak In this era of cheap lithium pouch cells, it might seem mildly anachronistic to build AA batteries into a project. There are enough valid reasons to do so, however, and …read more #hacking #projects image
The Cardboard Airplane Saga Continues History is full of engineers making (or attempting to make) things out of the wrong stuff, from massive wooden aircraft to boats made of ice and sawdust. [PeterSripol] is attempting …read more #hacking #projects image
2025 Component Abuse Challenge: Heat Activated LED Candles [Miroslav Hancar] wasn’t satisfied with abusing just a single component for our Component Abuse Challenge. He decided to abuse a whole assembly, in particular, some LED candles. In this project, …read more #hacking #projects image
Teardown of HP Optical Link and Signal Investigations Using Siglent Technology Anything with a laser has undeniable hacker appeal, even if the laser’s task is as pedestrian as sending data over a fiber optic cable. [Shahriar] from [The Signal Path] must …read more #hacking #projects image
Autopsy of a First-Generation RX7 Mazda Rotary Car Engine In theory, Wankel-style rotary internal combustion engines have many advantages: they ditch the cumbersome crankcase and piston design, replacing it with a simple, single-chamber design and a thick, plectrum-shaped chunk …read more #hacking #projects image
Camera Capabilities Unlocked from a Mouse There is a point where taking technology for granted hides some of the incredible capabilities of seemingly simple devices. Optical mice are a great example of this principle, using what …read more #hacking #projects image
2025 Component Abuse Challenge: Glowing Neon From a 9 V Relay Most of us know that a neon bulb requires a significant voltage to strike, in the region of 100 volts. There are plenty of circuits to make that voltage from …read more #hacking #projects image