It’s been a while since we’ve seen much action on the bristlebot front, which is too bad. So we’re happy to see [Extreme Electronics]’s take on the classic introductory &#82…

Keeping track your overall electricity usage is a good thing, and it’s even better if you know where all the kilowatt-hours are going. [Anurag Chugh’s] house has the three phases coming from the el…

Kickstarter is not a store. Indiegogo is not a store. No matter what crowdfunding platform you're on, you're not in a store. This is an undeniable truth, and no matter how angry you are about not bein...

Hamvention was last weekend in Dayton, Ohio. Last weekend was also the Bay Area Maker Faire, and if you want tens of thousands of people who actually make stuff there's really only one place to be. ...

The modern office has become a sea of LCD monitors. It’s hard to believe that only a few years ago we were sitting behind Cathode Ray Tubes (CRTs). People have already forgotten the heat, the dust,…

This has got to be the ultimate name-dropping post. I'm tempted just to make a list. Or perhaps it should be like Jeopardy, I'll list the products or companies and you guess who was there. I am of cou...

Everyone loves learning a new programming language, right? Well, even if you don’t like it, you should do it anyway, because thinking about problems from different perspectives is great for t…

Everyone's favorite safety-tie-wearing-eccentric-inventor, [Colin Furze], is back at it again, this time making a flamethrower guitar -- sponsored by Intel!?

As an ex-plumber, [Furze] is a master fab...

[Tisham Dhar] has been interested in monitoring AC power and previously built a breakout board for the ADE7763. He wanted to find something cheaper and more modern. The ATM90E26 fit the bill. It ca…

We’ve been 3D-printing parts for self-replicating machines before, but we’ve been working on the wrong machines. Software and robotics engineer [David Sanchez Falero] is about to set it…

There is a rich history surrounding the improvisation of electronic components. From cats-whisker foxhole radio detectors using razor blades through radio amateurs trying antique quartz lenses as c…

Raspberry Pi clusters are a dime a dozen these days. Well, maybe more like £250 for a five-Pi cluster. Anyway, this project is a bit different. It’s exquisitely documented. [Nick Smith] built…

Having hacked away with high voltage for many years I’ve ended up using a large number of very different high voltage sources. I say sources and not power supplies because I’ve even pow…

Wow how the time flies. It seems like only couple of weeks ago we were unveiling the film we shot at Salton Sea to launch this, our third global hacking initiative called The Hackaday Prize. What ...

[Thomas] loves his Logitech MX Master mouse, which has a pretty elaborate scroll-wheel mechanism. Perhaps too elaborate; it broke on him after a week of use, just when he was getting used to the fe…

If you’ve been to an apartment complex with a locked front door, you’ve seen the buzzer systems. You press the corresponding button for the apartment you want and can talk to the reside…

Last weekend was Hamvention, the place you want to be on the third weekend in May. It is the world’s largest gathering of amateur radio enthusiasts, and an exceedingly large flea market conta…

Crystal radios are old news, but great fun. What would happen if a PhD designed a crystal set? By PhD we mean Pizza Hut Deliveryperson and [John Greenlee] (who may not actually be a PhD of either k…

Before the Commodore 64, the IBM PC, and even the Apple I, most computers took input data from a type of non-magnetic storage medium that is rarely used today: the punched card. These pieces of car…

In this day and age we're consistently surrounded with portable electronic devices. In order for them to be called "portable", they must run on batteries. Most, if not all, use rechargeable batteries....