For the last few years of the Hackaday Prize, there have been more than a few prosthetic devices presented. Almost without exception, the target for these projects are prosthetic hands. That’…

If you’re a heavy user of a 3D printer, or a welder, you’ll know the problem of empty spools. You’ve used up all the filament or the welding wire, and you’re left with a sub…

In our eyes, there isn’t a much higher calling for Arduinos than using them to make musical instruments. [victorh88] has elevated them to rock star status with his homemade electronic drum ki…

We take our mother tongue for granted, a language we learn as young children without realizing the effort involved. It is only when as adults we try to pick up another language that we fully understan...

[Paul Rako]'s teardown of his treasured P6042 current probe shows why Tektronix commands so much respect among the old hats of the electronics world.

Built in 1969, the P6042 is pretty sparse trans...

There are several reasons you should have an isolation transformer. They can prevent ground loops and also prevent a device under test from having a DC path to ground (or isolate an oscilloscope from ...

Every mad scientist’s lair needs a Geiger counter. After all, if that UFO crashes on the back patio, you might need to know if it is hot. [Tanner_Tech] shows you how to build a cheap one that…

You need only look at the weekly user account leak from a popular web service or platform to know there’s a problem with security. Reusing passwords is the dumbest thing you can do right now, and th...

Building a simple robot arm is a lot more straightforward than it used to be.  If you have a laser cutter, or a bit of cash and don't mind waiting for postage, there are inexpensive kits like the MeA...

[Alex]'s entry for the Hackaday Prize is extremely simple: it's a device to monitor the inside of casts. For every itch, for every broken bone, for every skin irritation, and for every episode of Hou...

[Eric Wasatonic] had a box of SWB2433 transistors that he had very little information about. In order to discover their properties, he fired up his curve tracer to compare these transistors with mo…

Piano rolls are the world’s longest-lasting recording medium, and its first digital one. They were mass-produced from 1896 to 2008, and you can still get some made today, although they’…

We’ve all taken apart a small toy and pulled out one of those little can motors. “With this! I can do anything!” we proclaim as we hold it aloft. Ten minutes later, after we&#8217…

[Dr.Duino] recently completed the latest piece of what he calls "Interactive Furniture" - the GoonieBox. It took over 800 hours of design and assembly work and the result is fascinating. Part clock an...

One can imagine a political or business conference without an interactive badge — but not a hacker conference. Does this make the case for hackers being a special breed of people, always havi…

Talking to computers is all the rage right now. We are accustomed to using voice to communicate with each other, so that makes sense. However, there's a distinct difference between talking to a human...

Shards of silicon these days, they’re systematically taking what used to be rather complicated and making it dead simple in terms of both hardware and software. Take, for instance, this IR to…

[Tim] was tired of compromising his portrait-oriented digital photos by shoehorning them into landscape-only frames. Unable to find a commercial solution, he built his own rotating digital photo frame...

The Hackaday Prize is a celebration of the greatest hardware put together by the greatest hackers on the planet. If you go over the entries, you'll find user interfaces for everything. Need a wheelcha...

[hirocreations] printed an entire suit of enormous Fallout power armor on his Monoprice Maker Select 3D printer, which took some 140 days and over 120 pounds of IC3D PLA filament. Happily, [hirocre…