hackaday.com Archives - 08 December 2016, Thursday

  • Measuring High Voltage in Millimeters (and Other HV Probe Tricks) | Hackaday

    hackaday.com 08 Dec '16, 3pm

    The value of R1 was selected so that it wouldn’t load down the circuit being measured. High voltage circuits often don’t have much spare current for measuring purposes. R1 was also selected such that there wouldn’t be a problem with leakage over its surface. In my case R1 is made up o...

  • Retrotechtacular: The Incredible Machine

    Retrotechtacular: The Incredible Machine | Hackaday

    hackaday.com 08 Dec '16, 9am

    They just don’t write promotional film scripts like they used to: “These men are design engineers. They are about to engage a new breed of computer, called Graphic 1, in a dialogue that will test the ingenuity of both men and machine.” This video (embedded below) from Bell Labs in 196...

  • Laser Cut LEGO in MDF

    Laser Cut LEGO in MDF | Hackaday

    hackaday.com 08 Dec '16, 6am

    It’s hard not to be a fan of LEGO. The humble plastic bricks from Denmark enabled many a young engineer to bring their architectural and mechanical fantasies to life. But one limitation was that you were stuck using the bricks LEGO designed. Thankfully, [John Sokol] has come up with a...

  • Voice Activated Fireplace Is As Cool As It Gets

    Voice Activated Fireplace Is As Cool As It Gets | Hackaday

    hackaday.com 08 Dec '16, 3am

    A fireplace can add a cozy, relaxed atmosphere — and a touch of style — to any home. Redditor [hovee] saw the opportunity to add some flair to his gas fireplace by making it voice activated . Check out the video of it in action below. Google Home and Google Assistant provides the voic...

  • USB Etch-a-Sketch-Style Mouse is More Analog Than You’d Think | Hackaday

    hackaday.com 08 Dec '16, 12am

    [Mitxela] wanted to build a different kind of mouse, one that worked like an Etch-a-Sketch toy with one X knob and one Y knob. Armed with some rotary encoders and a microcontroller , that shouldn’t be hard. But when you use a pin-limited ATtiny85, you are going to need some tricks. Th...

  • Sintering Sand WIth A Laser Cutter | Hackaday

    hackaday.com 07 Dec '16, 9pm

    We are all used to Fused Deposition Modeling, or FDM, 3D printers. A nozzle squirts molten material under the control of a computer to make 3D objects. And even if they’re usually rather expensive we’re used to seeing printers that use Stereolithography (SLA), in which a light-catalys...

  • Akiba: Shenzhen in 30 Minutes

    Akiba: Shenzhen in 30 Minutes | Hackaday

    hackaday.com 07 Dec '16, 8pm

    Multi-talented hacker extraordinaire and electrical engineer [Akiba] is based in Japan, and this makes it just a hop, skip, and a jump over to Shenzhen, China, the hardware capital of the world. He’s led a number of manufacturing tours aimed at acquainting hackers with the resources t...

  • Official: Pebble Ceases Hardware Production

    Official: Pebble Ceases Hardware Production | Hackaday

    hackaday.com 07 Dec '16, 7pm

    Today Pebble has announced that it will cease all hardware production . Their outstanding Kickstarter deliveries will not be fulfilled but refunds will be issued. Warranties on all existing hardware will no longer be honored. However, the existing smartwatch service will continue… for...

  • Arduino Laser Pinball is On Target

    Arduino Laser Pinball is On Target | Hackaday

    hackaday.com 07 Dec '16, 4pm

    Have you ever wanted to roll your own pinball machine? It’s one of those kinds of builds where it’s easy to go off the deep end. But if you’re just getting your feet wet and want to mess around with different playfield configurations, start with something like [joesinstructables]’ Ard...

  • You Can Have My LM386s When You Pry Them From My Cold Dead Hands

    You Can Have My LM386s When You Pry Them From My Cold Dead Hands | Hackaday

    hackaday.com 07 Dec '16, 3pm

    Everyone has a chip-of-shame: it’s the part that you know is suboptimal but you keep using it anyway because it just works well enough. Maybe it’s not what you would put into a design that you’re building more than a couple of, but for a quick and dirty lashup, it’s just the ticket. F...

  • Turn cheap USB soldering irons in to tweezers

    Turn cheap USB soldering irons in to tweezers | Hackaday

    hackaday.com 07 Dec '16, 12pm

    This is 2016, and almost every hacker dabbles with SMD parts now, unlike back in the day. This means investing in at least some specialized tools and equipment to make the job easier. One handy tool is the SMD soldering tweezers – useful not only for manual soldering of parts, but als...

  • Don’t Leave 3D Printers Unattended – They Can Catch Fire | Hackaday

    hackaday.com 07 Dec '16, 9am

    The holidays are almost here, and with that comes the traditional Mass Consumption of Consumer Goods and Gift Exchange. 3D printers are getting really good and really cheap, and it’s inevitable that a lot of 3D printers will be given as gifts this year. Be careful if you’re giving or ...

  • Building a Whegged Robot

    Building a Whegged Robot | Hackaday

    hackaday.com 07 Dec '16, 6am

    [Jaidyn Edwards] is building a robot. This isn’t going to be a normal robot, though, he’s building a whegged robot , inspired by Boston Dynamic’s version of the RHex design . A wheg (TM) is a curved leg that rotates around a foxed fixed (Ed note: Fixed!) point on one end, driven by a ...

  • Homebrew Dash Cam Enables Full Suite of Sensors

    Homebrew Dash Cam Enables Full Suite of Sensors | Hackaday

    hackaday.com 07 Dec '16, 12am

    You heard it here first: dash cams are going to be the next must-have item for your daily driver. Already reaching market saturation in some parts of the world but still fairly uncommon in North America, we predict that car makers will soon latch onto the trend and start equipping car...

  • For Your Binge-Watching Pleasure: The Clickspring Clock Is Finally Complete

    For Your Binge-Watching Pleasure: The Clickspring Clock Is Finally Complete | Hackaday

    hackaday.com 06 Dec '16, 9pm

    It took as long to make as it takes to gestate a human, but the Clickspring open-frame mechanical clock is finally complete. And the results are spectacular. If you have even a passing interest in machining, you owe it to yourself to watch the entire 23 episode playlist. The level of ...

  • The Internet of Tampons | Hackaday

    hackaday.com 06 Dec '16, 7pm

    At the 2016 Hackaday Superconference , Amanda Brief and Jacob McEntire gave a talk on what they’ve been working on for the past few years. It’s My.Flow , the world’s first tampon monitor capable of tracking saturation, and eliminating anxiety, leakage, and infection. It’s better than ...

  • Hack Safely: Fire Safety in the Home Shop | Hackaday

    hackaday.com 06 Dec '16, 6pm

    Within the past two months we’ve covered two separate incidents of 3D printing-related fires. One was caused by an ill-advised attempt to smooth a print with acetone heated over an open flame, while the other was investigated by fire officials and found to have been caused by overuse ...

  • Decabit: Or The Conspiracy Theory That Wasn’t | Hackaday

    hackaday.com 06 Dec '16, 4pm

    (It’s worth noting, though I’m sure you get this, that a single “device” or “channel” would typically represent hundreds or thousands of separate devices of one type, each with their own relay. But it’s convenient to speak in terms of a single device.) K22 and decabit are two differen...

  • The Demise of Pebble as a Platform | Hackaday

    hackaday.com 06 Dec '16, 3pm

    Pebble is the {Beta|DEC|Amiga} of the smart watch industry. They got it right. But failed to realize people don’t want it right, they want it flashy, sexy, etc. With one exception(*), Pebble is still the only watch on the market to nail my use case for a smart watch. A low cost, alway...

  • Building an IoT Drill Press for Reasons Unknown

    Building an IoT Drill Press for Reasons Unknown | Hackaday

    hackaday.com 06 Dec '16, 9am

    We’ll take [Ivan] at his word that there’s a method to this madness and just take a look at the build itself, in the hopes that it will inspire someone to turn their lowly drill press into a sorta-kinda 2-axis milling machine. [Ivan] makes extensive use of his 3D printer to fabricate ...

  • An Amateur Radio Repeater Using An RTL-SDR And A Raspberry Pi | Hackaday

    hackaday.com 06 Dec '16, 6am

    An amateur radio repeater used to be a complex assemblage of equipment that would easily fill a 19″ rack. There would be a receiver and a separate transmitter, usually repurposed from commercial units, a home-made logic unit with a microprocessor to keep an eye on everything, and a he...

  • Mexican Highschoolers Launch 30 High Altitude Balloons

    Mexican Highschoolers Launch 30 High Altitude Balloons | Hackaday

    hackaday.com 06 Dec '16, 3am

    No matter whether you call them “picosatellites” or “high altitude balloons” or “spaceblimps”, launching your own electronics package into the air, collecting some high-altitude photos and data, and then picking the thing back up is a lot of fun. It’s also educational and inspirationa...

  • Building Beautiful Cell Phones Out Of FR4 | Hackaday

    hackaday.com 06 Dec '16, 12am

    Over on Hackaday.io, [bobricius] took this technology and designed something great. It’s a GSM cell phone with a case made out of FR4 . It’s beautiful, and if you’re ever in need of a beautifully crafted burner phone, this is the one to build. The components, libraries, and toolchains...

  • Crypto Features: They’re Not For Girls | Hackaday

    hackaday.com 06 Dec '16, 12am

    If you have worked in an office that contained a typewriter, the chances are you’ve been in the workplace for several decades. Such has been the inexorable advance of workplace computing. It’s a surprise then to discover that one of the desirable toys from many decades ago, the Barbie...

  • Hacking a Device That Lives Inside the Matrix

    Hacking a Device That Lives Inside the Matrix | Hackaday

    hackaday.com 05 Dec '16, 9pm

    [Gerardo Iglesias Galván] decided he wanted to try his hand at bug-bounty hunting — where companies offer to pay hackers for finding vulnerabilities. Usually, this involves getting a device or accessing a device on the network, attacking it as a black box, and finding a way in. [Gerra...

  • Insanely Hot Oven Makes Pizza in 45 Seconds: Avidan Ross on Food Hacking

    Insanely Hot Oven Makes Pizza in 45 Seconds: Avidan Ross on Food Hacking | Hackaday

    hackaday.com 05 Dec '16, 7pm

    In the future, nobody will have to cook for themselves: the robots will take care of it all for us. And fast! At least if folks like [Avidan Ross] have their way. He gave a talk on his 45-second pizza robot, and other DIY food automations, at the 2016 Hackaday SuperConference, and you...

  • Taking It To Another Level: Making 3.3V Speak with 5V

    Taking It To Another Level: Making 3.3V Speak with 5V | Hackaday

    hackaday.com 05 Dec '16, 6pm

    When directly driving logic you’d normally use at 5V from a 3.3V output there is one cautionary tale of which to take heed, a personal confession of an electronic failure. CMOS logic defines its logic thresholds as a percentage of supply voltage, which with a 5V supply puts the logic ...

  • Self-Driving Cars Are Not (Yet) Safe | Hackaday

    hackaday.com 05 Dec '16, 3pm

    Realistically, the only time ‘self driving cars’ will be safe is if/when they are the only cars on the road, and even then, there is some room for error. If certain roadways and expressways will have isolated lanes for ‘self driving vehicles’, that are NOT ACCESSIBLE to manually drive...

  • Body Cardio Weighing Scale Teardown

    Body Cardio Weighing Scale Teardown | Hackaday

    hackaday.com 05 Dec '16, 12pm

    If you weigh yourself by standing on a bathroom scale, not liking the result, then balancing towards one corner to knock a few pounds off the dial, you are stuck in a previous century. Modern bathroom scales have not only moved from the mechanical to the electronic, they also gather b...

  • Sporty Cars Making Fake Engine Noise

    Sporty Cars Making Fake Engine Noise | Hackaday

    hackaday.com 05 Dec '16, 9am

    Following the monumental emissions-cheating scandal at VW, further horrible revelations demonstrate just how corrupt the modern automotive industry has become: many cars make fake engine noise . And we’re not just talking about those darn sneaky Priuses. Ford, BMWs, Porsche, and yes, ...