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Hackaday Links: March 15, 2020
Just a few weeks ago in the Links article, we ran a story about Tanner Electronics, the Dallas-area surplus store that was a mainstay of the hacker and maker scene in the area. At the time, Tanner’s...
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Watchman Watches You Watching Him Watch You
At this point, society has had over three decades to get used to the Blue Man Group. Maybe that’s why we’re less disturbed by [Graham Jessup]’s face-tracking Watchman than we should be. Either that, or...
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Link Coupling Antenna Tuner Wordless Workshop
Remember “Wordless Workshop” in Popular Science? [Roy Doty] illustrated a household problem and the solution for it cobbled up in the main character’s garage workshop. We wonder what [Roy] would have...
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Drones Can Undertake Excavations Without Human Intervention
Researchers from Denmark’s Aarhus University have developed a method for autonomous drone scanning and measurement of terrains, allowing drones to independently navigate themselves over excavation...
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A DIY Stun Gun You Probably Shouldn’t Build
In these troubled times, when a trip to the grocery store could turn into a brawl over toilet paper, you might be inclined to build yourself a low-cost electroshock weapon. Or at least, that’s what...
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Custom Logo Display Pushes Nixie Tube Technology
No matter what you think about Nixie tubes, you’ve got to admit that having a Nixie custom made for you would be pretty cool. The cost of such a vanity project is probably prohibitive, but our friends...
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Dissecting China-Sourced Vintage HP 1970s ICs: Genuine Or Not?
While repairing a real-time clock module for a 1970s HP computer that had been damaged by its leaky internal battery, [CuriousMarc] began to suspect that maybe the replacement clock chips which he had...
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Patterned Plywood Makes For Attractive Speakers
In the matter of audio, we’re well past the reign of the home hi-fi and the boombox. If you’re not listening on headphones or directly on your phone, you’ve got a brick-sized Bluetooth speaker pumping...
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Using Additives For Better Performing Epoxy
Epoxy resins are an important material in many fields. Used on their own as an adhesive, used as a coating, or used in concert with fiber materials to make composites, their high strength and light...
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A Smart Controller For Your DIY UV Cure Box
Resin 3D printers are finally cheap enough that peons like us can finally buy them without skipping too many meals, and what means we’re starting to see more and more of them in the hands of hackers....
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3.2 GHz Vector Signal Generator Tear Down
[The Signal Path] snagged a fancy Rohde & Schwarz vector signal generator that can go up to 3.2 GHz, but sadly it wasn’t in working order. It powered up and even put out a 1 GHz signal, but the...
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Open-Source ARM Development Simplified
The ARM series of processors are an industry standard of sorts for a vast array of applications. Virtually anything requiring good power or heat management, or any embedded system which needs more...
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This Is Not An Argument Bot
While in-person arguments are getting harder to come by these days, we’ll always have the internet (hopefully). So what can you do to stay on your game in a time when a little levity is lauded? Build...
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Hearing Plants Giggle Is Just As Creepy As You Think
While best known for Charlie and the Chocolate Factory, Roald Dahl wrote quite a few similarly oddball stories in his time. One of them, The Sound Machine, is about a device that allowed the user to...
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You’ll Flip For This Toggle Switch Handheld Game
Teacher says that every time a toggle switch clunks, a hacker gets their wings. Or something like that. All we know is that there are few things the hardware tinkerer likes more than the satisfying...
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Homemade N95 Masks In A Time of Shortage
Due to the worldwide pandemic of COVID-19, there has been a huge shortage of N95 masks. [Paddy Robertson] from Smart Air has been working on designs for a DIY N95 mask that may be able to protect those...
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GitHub On The Go
It is hard to find anyone that does any kind of software development that doesn’t have some interaction with GitHub. Even if you don’t host your own projects there, there are so many things to study...
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Seven-Segment Shelves Do Double Duty
[Lewis] of [DIY Machines] was always on the lookout for that perfect something to hang above the couch. After spending a lot of time fruitlessly searching, he designed and built this awesome shelving...
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Sweet Streams Are Made Of These: Creating Music On The Command Line
There are countless ways to create music. In the simplest form, it won’t even require any equipment, as evidenced by beatboxing or a capella. If we move to the computer, it’s pretty much the same...
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Handwashing Timer Makes Sure the Suds Stay On Long Enough
“Twinkle, Twinkle, Little Star”? How we wonder why you’d resort to singing a ditty to time your handwashing when you can use your social isolation time to build a touch-free electronic handwash timer...
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