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Hackaday



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Last Build Date: Tue, 25 Apr 2017 20:34:39 +0000

 



Heavy Metal Detectorsfeat-heavymbodgewires

Tue, 25 Apr 2017 20:00:00 +0000

Helsinki has a strong underground Heavy Metal scene, so what better way to show it off than to have listeners literally unearth the local sounds themselves with converted metal detectors that play, naturally, Metal? [Steve Maher] built these modified detectors and handed them to a bunch of participants who went on exploratory walks around the city. The tracks from local bands changed as the user moved from one concealed metallic object to the other to create the experience of discovering the hidden soundscape of the land. 

Because there was no writeup on the hardware, we contacted [Steve] ourselves, and here …read more

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Hackaday Prize Entry: Brightenmacherbrightenmacher-featuredjennylist

Tue, 25 Apr 2017 18:30:25 +0000

We have all at some point have made a flashlight. It used to be a staple of childhood electronics, the screw-in bulb in a holder, and a cycle lamp battery. If you were a particularly accomplished youthful hacker you might even have fitted a proper switch, otherwise, you probably made do with a bent paperclip and a drawing pin.

So you might think that flashlights offer no challenges, after all, how many ways can you connect a bulb or an LED to a battery? [Peter Fröhlich] though has a project that should put those thoughts out of your mind. It …read more

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Ask Hackaday: What About the Diffusers?ecstatic-epiphany-preview-edit-94695180mp4-shot0009_featuredhexagon5un

Tue, 25 Apr 2017 17:01:18 +0000

Blinky LED projects: we just can’t get enough of them. But anyone who’s stared a WS2812 straight in the face knows that the secret sauce that takes a good LED project and makes it great is the diffuser. Without a diffuser, colors don’t blend and LEDs are just tiny, blinding points of light. The ideal diffuser scrambles the photons around and spreads them out between LED and your eye, so that you can’t tell exactly where they originated.

We’re going to try to pay the diffuser its due, and hopefully you’ll get some inspiration for your next project from scrolling …read more

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Around the Globe on World Create DayNYCMeetupbrianbenchoff

Tue, 25 Apr 2017 16:01:03 +0000

Last weekend was great for science and technology. While thousands of people took to the streets to protest anti-intellectualism, a few members of the Hackaday community dug their heels in, turned on the soldering iron, and actually did something about it. This was World Create Day, a community effort to come together and build something that matters. What did these people build? So much awesome stuff.

The Nest I/O in Karachi, Pakistan

The folks at The Nest I/O hackerspace in Karachi, Pakistan had a rather large meetup for World Create Day featuring the finest in laser cut, googly-eyed fighting robots. …read more

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An Analog Charge Pump Fabrication-Time Attack Compromises A Processorcharge-pump-backdoor-featuredjennylist

Tue, 25 Apr 2017 15:00:00 +0000

We will all be used to malicious software, computers and operating systems compromised by viruses, worms, or Trojans. It has become a fact of life, and a whole industry of virus checking software exists to help users defend against it.

Underlying our concerns about malicious software is an assumption that the hardware is inviolate, the computer itself can not be inherently compromised. It’s a false one though, as it is perfectly possible for a processor or other integrated circuit to have a malicious function included in its fabrication. You might think that such functions would not be included by a …read more

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Different Differentials & The Pitfalls of the Easy Swapmainalienlewinday

Tue, 25 Apr 2017 14:01:38 +0000

I dig cars, and I do car stuff. I started fairly late in life, though, and I’m only just starting to get into the whole modification thing. Now, as far as automobiles go, you can pretty much do anything you set your mind to – engine swaps, drivetrain conversions, you name it – it’s been done. But such jobs require a high level of fabrication skill, automotive knowledge, and often a fully stocked machine shop to match. Those of us new to the scene tend to start a little bit smaller.

So where does one begin? Well, there’s a huge …read more

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Papa Loves Mamba: Slithering Robot is Reconfigurablesnake-robot-featuredwd5gnr1

Tue, 25 Apr 2017 11:01:13 +0000

It makes sense considering evolution, but nature comes up with lots of different ways to do things. Consider moving. Land animals walk on four feet or two, some jump, and some use peristalsis or otherwise slither. Oddly, though, mother nature never developed the wheel (although the mother-of-pearl moth’s caterpillar will form its entire body into a hoop and roll away from attackers). Human-developed robots which, on the other hand, most often use wheels. Even a tank track has wheels within. [Joesinstructables] latest robot still uses wheels, but it emulates the slithering motion of a snake, He calls it the Lake …read more

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