[Tony] has designed and 3D printed a full-sized pinball machine and it’s absolutely incredible. And by 3D-printed, we mean 3D-printed! Even the spring for the plunger printed plastic. The bum…

How hot is the water coming out of your tap? Knowing that the water in their apartment gets "crazy hot," redditor [AEvans28] opted to whip up a visual water temperature display to warn them off when t...

Halloween might be over, but for some of us there’s still another pumpkin-centric holiday right around the corner to give us an excuse to build projects out of various gourds. During a challe…

MIDI is a great tool for virtually any musician. Unless you're a keyboard player, though, it might be hard to use it live. [Evan] recently came up with a great solution for all of the wistful guitar p...

Here's a life protip for you: get really, really good at one video game. Not all of them; you only want to be good - top 10% at least - at one video game. For me, that's Galaga. It's a great arca...

Most chickens are pretty good at putting themselves to bed when the sun sets, and [Eddy]’s chickens are no exception. But they’re not terribly thoughtful about closing up after the…

The arrival of affordable software defined radio technologies over the last couple of decades has completely changed the way that radio amateurs and other radio enthusiasts approach the airwaves....

[Pawel] has a weather station, and its nerve-center is a Raspberry Pi. He wanted to include a light sensor but the problem is, the Pi doesn’t have a built-in ADC to read the voltage off the l…

We don’t think of the human body as a piece of electronics, but a surprising amount of our bodies work on electricity. The heart is certainly one of these. When you think about it, it is pret…

A bit ago I wrote an article called, “Death To The 3.5mm Audio Jack, Long Live Wireless.” A few readers were with me, a few were indifferent, many were vehemently against me, and there …

When the guys at [Practical Engineering] say they have a dirty car stand, they really mean it! They made a block of dirt and sheets of fiberglass as reinforcement material, and the resistance was put ...

I don’t know if it is true or not today, but in fiction, spies depend on lots of high-tech gadgets. I do know that during World War II, the various secret services like the OSS and the SOE di…

For years Sprite_TM has been my favorite hacker, and yet he continues to have an uncanny ability to blow my mind with the hacks that he pulls off even though I'm ready for it. This weekend at the Hac...

A few years ago, someone figured out small, cheap ARM Linux boards are really, really useful, extremely popular, sell very well, blink LEDs, and are able to open the doors of engineering and comput…

It’s got a little “Saturday Night Fever” vibe to it, but this pressure-sensitive LED floor was made for gaming, not for dancing. Either way, [creed_bratton_]’s build looks p…

Lots of useful things come in boxes. Shoes, soldering irons and... prime numbers? This simple project from [WhiskyTangoHotel] puts a list of prime numbers in a handy box. Press a button, get a prime. ...

[Netzener] received a Radio Shack P-Box one tube receiver as a gift. However, at the time, his construction skills were not up to the task and he never completed the project. Years later, he did compl...

NASA has a bunch of its 3D models up on GitHub, and if you didn’t know about it before, you do now. It’s a ridiculously large download, at over one and a half jiggabytes, but it’s…

Is it possible to upcycle failed 3D prints? As it turns out, it is -- as long as your definition of "recycle" is somewhat flexible. After all, the world only needs so many coasters.

To be fair, [D...

The Wheatstone bridge is a way of measuring resistance with great accuracy and despite having been invented over 150 years ago, it still finds plenty of use today. Even searching for it on Hackaday…