Calculator hacks have been around for a while now and we have seen the most action around the Texas Instruments TI-83 and TI-84. When [johnkimdinh] found a way to add an ESP8266 to a scientific cal…

Some people find it hard to look at a huge, flat expanse of floor or ground and not see a canvas. From the outfield grass of a baseball park to some poor farmer’s wheat field, trampling, trim…

We’re not sure if this is art, anti-snooping guerilla warfare, or just a cheeky hack, but we do know that we like it! [Jasper van Loenen]’s Linger keeps the SSIDs that your cell phone (…

We love custom clocks here at Hackaday, and are always thrilled to see each inventive means of time-keeping. In a seldom-seen take on the familiar device, the [Bastel Brothers]’s LED Strip Cl…

It seems like everyone is building belt grinders these days. You might think [Jeremy Schmidt] is just hoping on the bandwagon, but you’d be wrong. He took a full two years to design the perfe…

If you have ever worked with simple logic gates, there is a good chance that at some point you will have built a ring oscillator from a chain of inverters. With the addition of a resistor and a cap…

[HackerOne] has announced that US Dept of Defense (DoD) has decided to run their biggest bug bounty program ever, Hack the Air force. You may remember last year there was the Hack the Pentagon bug …

If you still have a drawer full of slap bracelets from the 1990s because, you know, they might come back, then you’ll appreciate [Vorticon’s] latest project. Sure, we see lots of weathe…

Nothing says 'I Love You' like an old vending machine, and if it is a restored and working vintage Vendo V-80 cola dispenser then you have yourself a winner. [Jan Cumps] from Belgium was assigned...

The Raspberry Pi has become a firm favorite in our community for its array of GPIOs and other interfaces, as well as its affordable computing power. Unfortunately though despite those many pins, th…

This last week was SEFF, a week of electric-powered remote-controlled aircraft above 1700 feet of Bermuda grass in the middle of Georgia. [Damon Atwood] has been bringing his 16-foot-wingspan Emmas…

Like so many of the projects we feature, this one started with a cheap eBay module purchase. In this case, it was a little Tesla coil that made decent sized arcs but wasn't quite good enough. The resu...

For all their applications, 3D printers can be finicky machines. From extruder problems, misaligned or missing layers, to finding an overnight print turned into a tangled mess, and that's all assuming...

[IanMeyer123] should be working on his senior design project. Instead, he's created a sound-reactive Bluetooth speaker that may not earn him an A grade but will at least keep the team entertained.

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Linaro has announced a new ARM-based single board computer.

The HiKey 960, built in collaboration with 96Boards, gives the user 4 ARM Cortex-173 cores clocked at 2.4GHz, 4 ARM Cortex-A53 cores cloc...

It’s no secret that a vast amount of American infrastructure is in great need of upgrades, repairs or replacements. The repairs that are desperately needed will come, and they will come in on…

Let’s build the Internet of USEFUL Things, not just the Internet of Things. IuT ! IoT That’s what we’ll be doing over the next five weeks. The second challenge of the 2017 Hackada…

More than one hundred years ago, Henri Becquerel discovered that uranium emitted penetrating rays similar to those used by Wilhelm Röntgen to take the first X-ray image (of his wife’s hand), …

Mathematics, as it is taught in schools, sometimes falls short in its mission to educate the pupils. This is the view of [Joan Horvath] and [Rich Cameron], particularly with respect to the teaching o...

SCSI devices were found in hundreds of different models of computers from the 80s, from SUN boxes to cute little Macs. These hard drives and CDROMs are slowly dying, and with that goes an entire ge…