[Scott] is building a DIY yeast reactor for his aquarium. What's a yeast reactor? [Scott] wants to pump carbon dioxide into his aquarium so his aquatic plants grow more. He's doing this with a gallon ...

We've had a love affair with the Monoprice Select Mini since it came out. The cheap printer has its flaws, though. One of them is that the controller is a bit opaque. On the one hand, it is impressive...

[Greg Zumwalt], master of 3D-printed mechanisms, has published his Saber 2 project as well as an assembly Instructable telling you how to put it together.

Saber 2 is a 3D-printed gear-and-cam sa...

Motorcycles are hard to see at the best of times, so riders are often concerned with making themselves as visible as possible at all times. [Josh] wanted to do this by creating a custom tail light …

There are a lot of ways to try to mathematically quantify how healthy a person is. Things like resting pulse rate, blood pressure, and blood oxygenation are all quite simple to measure and can be use...

If you have more than a few bank cards, door-entry keycodes, or other small numeric passwords to remember, it eventually gets to be a hassle. The worst, for me, is a bank card for a business accoun…

[Kenjo] attended Chicago’s Thotcon this past week and has started hacking the convention badge and detailing what he learned. Thotcon’s badge, designed by [Jedha] and programmed by [John Wallis]...

Join us this Friday at noon PDT for a Hack Chat with Tenaya Hurst of Arduino. If you've been one of the big Maker Faires over the last few years (or innumerable other live events) and stopped by the A...

Designing pcbs for assembly is easy, right? We just squirt all the footprints onto a board layout, connect all the traces, send out the gerbers and position files, and we’re done–right?…

When operating any kind of hydroponic farming, there are a number of lighting solutions -- few of them inexpensive. Originally looking for an alternative to the lighting of IKEA's expensive hydroponic...

You’d think pool should be an easy game for a robot to play, right? It’s all math — geometry to figure out the angles and basic physics to deal with how much force is needed to mo…

[JLaservideo] has created some cool high-voltage gloves and uploaded a video on YouTube showing you how to get your mitts on a pair of your own. Using some very simple parts, he manages to make some d...

We've always been a fans of wargames. Not the movie (well, also the movie) but I'm referring to hacking wargames. There are several formats but usually you have access to an initial shell account some...

Hydroponics is an effective way of growing plants indoors through the use of water medium and artificial lighting. It often involves having a system to raise and lower the water level around the pl…

When [FinnAndersen] found an old TV set by the side of the road, he did what any self-respecting DIY/gaming enthusiast would do: He took it apart and installed a Raspberry Pi 3 running RetroPie in it...

On the way to the mailbox, you might be expecting bills, birthday cards, perhaps a grocery store catalogue or two. [Steve] was like you, once – until an embedded computer showed up in the jun…

Git is one of those tools that is so simple to use, that you often don’t learn a lot of nuance to it. You wind up cloning a repository from the Internet and that’s about it. If you make…

It’s May, and you know what that means: we’re winding down from a worldwide celebration of the worker, pollen is everywhere, Hackaday readers in the southern hemisphere are somehow offe…

Poke around enough on AliExpress, Alibaba, and especially Taobao and you’ll come across some interesting things. The Long-CZ J8 is one of those. It’s just 2.67 inch long, and weighs just 0.63 ounce…

Electrospinning is the process of dispensing a polymer solution from a nozzle, then applying a very high voltage potential between the nozzle and a collector screen. The result is a very, very fine…