Hackaday Podcast 055: The Most Cyberpunk Synthesizer, Data In Your Cells, Bubbly In Your Printer, And The Dystopian Peepshow

Hackaday editors Mike Szczys and Elliot Williams discuss the many great hacks of the past week. Just in case you missed the fact that we’re living in the cyberpunk future, you can now pop off your prosthetic hand and jack directly into a synthesizer. The robot headed for Mars has a flying drone in its belly. Now they’re putting foaming agent in filament to make it light and flexible. And did you ever wonder why those pinouts were so jumbled?

Take a look at the links below if you want to follow along, and as always tell us what you think about this episode in the comments!

Take a look at the links below if you want to follow along, and as always, tell us what you think about this episode in the comments!

Direct download (60 MB or so.)

Continue reading “Hackaday Podcast 055: The Most Cyberpunk Synthesizer, Data In Your Cells, Bubbly In Your Printer, And The Dystopian Peepshow”

This Week In Security: DNSSEC Temporarily Lost Their Keys, FIDO, And One Weird Windows Trick

DNSSEC is the system that allows for cryptographically secure DNS. It’s all based on a root cryptographic key, maintained by the Internet Assigned Numbers Authority (IANA). Ever wondered where the root Key Signing Key is stored, and how it’s accessed? Four times a year, a ceremony is held where the root key is pulled out of a physical safe, and maintenance tasks are performed in front of a group of witnesses.

Such an event was scheduled for February 12th, but a teensy problem was discovered. One of the safes that holds the key media had a broken lock, and the root key signing key was inaccessible for a few days while repairs were effected. The open nature of IANA means that much of their operations are publicly reported, and you can even watch the key signing ceremony, which was finally held on February 16th.

Continue reading “This Week In Security: DNSSEC Temporarily Lost Their Keys, FIDO, And One Weird Windows Trick”

We Ruined Status LEDs; Here’s Why That Needs To Change

Ah, the humble status LED. Just about every piece of home electronics, every circuit module, and anything else that draws current seems to have one. In the days of yore, a humble indicator gave a subtle glow from behind a panel, and this was fine. Then the 1990s happened, and everything got much much worse.

It’s Not The Technology, It’s How You Use It

With great brightness, comes great responsibility.

The 1990s brought us much good: Nirvana, Linux, and of course the blue LED. Much like “Teen Spirit”, the latter quickly fell into overuse: the technology rapidly became the sigil of all that was new and great, much to the ocular pain of the buying public.

This decision ranks up there for stupidity with other such questionable choices as hiring a rental car at the airport, or invading Russia in the winter. A status LED, most would agree, is there to indicate status. It need only deliver enough light to be seen when observed by a querying eye. What it need not do is glow with the intensity of a dying star, or illuminate an entire room for that matter. But, in the desperate attempts of product designers to appear on the cutting edge, the new, brighter LED triumphed over all in these applications. Continue reading “We Ruined Status LEDs; Here’s Why That Needs To Change”

Inputs Of Interest: Ears To Communication For Everyone

Welcome back to Inputs of Interest! If you haven’t heard, I am all ears when it comes to new ways of talking to computers and machines. And speaking of ears, did you know they can do useful tricks? If you squeeze your eyes shut tightly and/or yawn widely, you might hear a low-level rumbling sound like distant thunder. A decent percentage of people are able to move theirs voluntarily, but not everyone. Maybe you already knew you could rumble, and have used it to entertain yourself, or dampen the unpleasant sounds of life.

No, you can’t reach your tensor tympani with a Q-tip. Image via Research Gate

That rumbling is caused by a muscle in your middle ear stretching out. It’s called the tensor tympani, and its purpose is to shield your ears from loud sounds like chewing, and oddly enough, thunder. When the tensor tympani are activated, they pull the eardrums taut to keep them from vibrating and getting damaged. Unfortunately, they don’t react quickly enough to protect us from sudden sounds like gunshots.

Nick G is able to rumble on command, and wanted to see if he could somehow use it as an input mechanism that he calls Earswitch. He got a cheap USB otoscope camera and figured out that the tensor tympani’s stretching movement shows up well enough to trigger motion detection software. So far, [Nick] has been able to demonstrate control of a few things, like the Windows on-screen keyboard, Grid3 assistive software, and a head tracking utility.

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Open-Source Neuroscience Hardware Hack Chat

Join us on Wednesday, February 19 at noon Pacific for the Open-Source Neuroscience Hardware Hack Chat with Dr. Alexxai Kravitz and Dr. Mark Laubach!

There was a time when our planet still held mysteries, and pith-helmeted or fur-wrapped explorers could sally forth and boldly explore strange places for what they were convinced was the first time. But with every mountain climbed, every depth plunged, and every desert crossed, fewer and fewer places remained to be explored, until today there’s really nothing left to discover.

Unless, of course, you look inward to the most wonderfully complex structure ever found: the brain. In humans, the 86 billion neurons contained within our skulls make trillions of connections with each other, weaving the unfathomably intricate pattern of electrochemical circuits that make you, you. Wonders abound there, and anyone seeing something new in the space between our ears really is laying eyes on it for the first time.

But the brain is a difficult place to explore, and specialized tools are needed to learn its secrets. Lex Kravitz, from Washington University, and Mark Laubach, from American University, are neuroscientists who’ve learned that sometimes you have to invent the tools of the trade on the fly. While exploring topics as wide-ranging as obesity, addiction, executive control, and decision making, they’ve come up with everything from simple jigs for brain sectioning to full feeding systems for rodent cages. They incorporate microcontrollers, IoT, and tons of 3D-printing to build what they need to get the job done, and they share these designs on OpenBehavior, a collaborative space for the open-source neuroscience community.

Join us for the Open-Source Neuroscience Hardware Hack Chat this week where we’ll discuss the exploration of the real final frontier, and find out what it takes to invent the tools before you get to use them.

join-hack-chatOur Hack Chats are live community events in the Hackaday.io Hack Chat group messaging. This week we’ll be sitting down on Wednesday, February 19 at 12:00 PM Pacific time. If time zones have got you down, we have a handy time zone converter.

Click that speech bubble to the right, and you’ll be taken directly to the Hack Chat group on Hackaday.io. You don’t have to wait until Wednesday; join whenever you want and you can see what the community is talking about. Continue reading “Open-Source Neuroscience Hardware Hack Chat”

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Hackaday Links: February 16, 2020

Have you heard the exciting news about Betelgeuse? It’s been hard to miss these days, with reports of the red supergiant star suddenly dimming, and speculation growing that the star will go supernova sometime in the next 10,000 years. But the exciting part is that astronomers have gotten together and scheduled the Betelgeuse supernova for February 21, 2020. Or at least that’s how at least a half-dozen poorly written articles make it sound. We thought that seemed odd, so we dug a bit and the real story is more complicated and more interesting. Betelgeuse is normally a variable star that goes through complex cycles of brightening and dimming. Its current dimming is unprecedented in magnitude, but the timing coincides with its normal cycle. If this dimming is just a deepening of its normal cycle, the star should start brightening again on February 21. If it doesn’t, it could mean the star is entering the next phase in its evolution. We’d love to see a star so bright it’s visible in daylight and casts shadows at night, but we’ll just have to see what happens on Friday.

One of the last two factories in the world that makes the lacquer master discs needed to make vinyl records burned to the ground last week. Luckily nobody was hurt, but it took 82 firefighters hours to get the blaze under control. It remains to be seen how this loss will impact the vinyl record market, but since the appearance of a new star in the sky has long been seen as a bad omen and a portent of doom, if Betelgeuse does go boom next week, expect to hear the hipsters gnash their teeth and rend their man-buns. In the meantime, enjoy perhaps your last look at the fascinating vinyl manufacturing process.

Rent it once, rent it for life? Apparently, at least if you rent a Ford vehicle from Enterprise and install the FordPass app on your phone. That was the experience of one Masamba Sinclair when he rented a Ford Expedition in October and found that even five months later, the app – which he never unpaired from the rental vehicle – allowed him to start and stop the car’s engine, unlock the doors, and even track its location. The same thing even happened again this month when he rented a Mustang. Ford and Enterprise might both want to rethink the security model here; leaving it up to the customer to unlink the car from the app is a recipe for disaster.

Don’t forget that we have a really interesting contest going on right now: the Train All The Things machine learning contest. With so many different machine learning platforms and frameworks available today, you can surely find a way to build something that really shines. The early entries are interesting, with everything from an intelligent bat detector to sunglasses that give you control of the world. The contest is sponsored by Digi-Key and runs through April 7, so get started on your AI masterpiece and send it in.

Speaking of Digi-Key, they’ve put together a handy list of vendors from their line card who are reporting impacts from the Covid-19 outbreak in China. We wondered about supply chain effects from the outbreak recently, and this is confirmation that we’re starting to see a pinch. As of this writing, there are 62 vendors listed, with the majority reporting impacts from the extension of the Chinese New Year holiday. We’ll stay on top of this story, and of course we continue to wish our friends in China well.

It Ain’t Over ‘Til The Paperwork Is Done: Test Driving TiddlyWiki

Working on projects is fun. Documenting them is often not so much. However, if you want anyone to duplicate your work — or even just want to remember what you were doing a few years ago when something needs upgrading or repairing.

There’s a ton of ways to keep track of the details of your projects. We love seeing how things come together and of course we’re happy to suggest documenting on Hackaday.io. But sometimes, you just want to keep your own notes to yourself. There’s always a notebook, of course, but that seems kind of old fashioned. A lot of projects are on Wikis but you hate to stand up a web server and a Wiki instance just to keep notes. But what if you could have a local Wiki with minimal setup?

I recently came across TiddlyWiki and decided to take it for a spin. Join me after to break to see what it’s all about.

Continue reading “It Ain’t Over ‘Til The Paperwork Is Done: Test Driving TiddlyWiki”