hackaday.com Archives - 27 June 2017, Tuesday

  • Simple Wave Generation in Python (and SciPy) | Hackaday

    hackaday.com 27 Jun '17, 2am

    [153Armstrong] did a short post on how easy it is to generate waveforms using Python . We agree it is simple, but actually, it isn’t so much Python per se , it is some pretty cool libraries (SciPy , in particular) that do all the hard work. That may be splitting hairs, but it is worth...

  • Ambitious ATtiny85 Board Tests a Beginner’s Skills https://t.co/O69kFDT6Xh

    Ambitious ATtiny85 Board Tests a Beginner’s Skills | Hackaday

    hackaday.com 26 Jun '17, 11pm

    [Chris O’Riley] has been playing around with Arduinos for around a year, and decided he wanted a breadboardable ATtiny85 in order to prototype using the actual controller that would be used in the final project. He wants to use it to interface with a Bosch BMP280 pressure sensor, but ...

  • Hackaday Prize Entry: Messing Around With New Vacuum Tubes | Hackaday

    hackaday.com 26 Jun '17, 6pm

    Vacuum tubes have been around for ages, and for better or worse, they have their advocates for use in amplifiers and preamps. However, tubes are simply inconvenient devices. Even a 12AX7 preamp tube is huge relative to a handful of transistors, tubes require weird voltages, and each a...

  • MEMS: The Biggest Word in Small

    MEMS: The Biggest Word in Small | Hackaday

    hackaday.com 26 Jun '17, 5pm

    What’s tiny and on track to be worth $22 billion dollars by 2018? MEMS (Micro Electrical Mechanical Systems). That’s a catch-all phrase for microscopic devices that have moving parts. Usually, the component sizes range from 0.1 mm to 0.001 mm, which is tiny, indeed. There are some res...

  • Hacking an Inspection Microscope

    Hacking an Inspection Microscope | Hackaday

    hackaday.com 26 Jun '17, 2pm

    Sometimes I need to be able to take photographs of very small things, and the so-called macro mode on my point-and-shoot camera just won’t cut it. And it never hurts to have an inspection scope on hand for tiny soldering jobs, either, though I prefer a simple jeweler’s loupe in one ey...

  • Fidget-Spinning Robot Out-Uselesses Other Useless Machines

    Fidget-Spinning Robot Out-Uselesses Other Useless Machines | Hackaday

    hackaday.com 26 Jun '17, 11am

    When the [Director of Legal Evil] at Louisville’s LVL1 Hackerspace decided to demonstrate the uselessness of a 3D printer by printing a fidget spinner, another member at the space’s Tuesday meeting rose to the challenge and built a machine that whose sole purpose is to spin fidget spi...

  • A Table From Beyond Infinity

    A Table From Beyond Infinity | Hackaday

    hackaday.com 26 Jun '17, 8am

    Infinity mirrors are some far-out table mods and make a great centerpiece. Instructables user [bongoboy23] took a couple steps beyond infinity when designing this incredible table tailor-made for our modern age . Poplar and pine wood make up the framing, and red oak — stained and engr...

  • TEMPEST In A Software Defined Radio

    TEMPEST In A Software Defined Radio | Hackaday

    hackaday.com 26 Jun '17, 5am

    In 1985, [Wim van Eck] published several technical reports on obtaining information the electromagnetic emissions of computer systems. In one analysis, [van Eck] reliably obtained data from a computer system over hundreds of meters using just a handful of components and a TV set. Ther...

  • Flash a Light Bulb, Win a Prize

    Flash a Light Bulb, Win a Prize | Hackaday

    hackaday.com 26 Jun '17, 2am

    How many geeks does it take to flash a lightbulb? Judging from the list of entries in the 2017 Flashing Light Prize , so far only seven. But we suspect Hackaday readers can add to that total. The goal is almost as simple as possible: build something that can flash an incandescent ligh...

  • Hackaday Links: June 25th, 2017 | Hackaday

    hackaday.com 25 Jun '17, 11pm

    There will be no special badges for DEFCON . Everyone will still have badges — and our expectations are tempered because of the one year on / one year off schedule for electronic badges — there just won’t be mind-bending puzzles wrapped up in the official badges. What this means : it ...

  • Hackaday Prize Entry: Modular Circuits with SnapBloks

    Hackaday Prize Entry: Modular Circuits with SnapBloks | Hackaday

    hackaday.com 25 Jun '17, 8pm

    [Ekawahyu Susilo]’s twist on the modular circuit kit, SnapBloks helps you create circuits by stacking components on top of each other with the help of three magnetic contacts that not only keep the modules stuck together but also deliver power, ground, and data to each part. [Ekawahyu...

  • Another Helping Hands Build

    Another Helping Hands Build | Hackaday

    hackaday.com 25 Jun '17, 5pm

    [Punamenon2] wanted a soldering station with integrated helping hands. He couldn’t find one, but he decided it would be a good 3D printed project . In all fairness, this is really 3D printing integrating several off-the-shelf components including a magnifier, a soldering iron holder, ...

  • iPad, not Flux Capacitor, Brings DeLorean Back to the Future

    iPad, not Flux Capacitor, Brings DeLorean Back to the Future | Hackaday

    hackaday.com 25 Jun '17, 2pm

    Add a flux capacitor and a Mr. Fusion to a DeLorean and it becomes a time machine. But without those, a DeLorean is just a car. A 35-year old car at that, and thus lacking even the most basic modern amenities. No GPS, no Bluetooth — not even remote locks for the gullwing doors! To fix...

  • Animated Bathroom Sign

    Animated Bathroom Sign | Hackaday

    hackaday.com 25 Jun '17, 11am

    Once upon a time, pants were created. After a while, women were allowed to wear them too. This has made a lot of people happy and been widely regarded as a good thing. There is a problem, however – bathroom signage is largely predicated on the idea that there are two rigid genders whi...

  • Dirty Now Does Cables | Hackaday

    hackaday.com 25 Jun '17, 8am

    PCB makers Dirty made a name for themselves in the prototype PCB biz, with a convenient web form and numerous options for PCB color, thickness, layers, silk screening, and so on. Now they’ve branched out into custom cabling with Dirty Cables . You can design it yourself by dragging wi...

  • Listen to your Body | Hackaday

    hackaday.com 25 Jun '17, 5am

    [John Miller] has the perfect response next time he complains about an ache or pain and one of his friends says, “You should listen to your body!” As you can see in the video below, he already does . Using two 9V batteries and some instrumentation amplifiers, [John] built an electromy...

  • 3D-Printed Rover Rolls Light and Looks Right

    3D-Printed Rover Rolls Light and Looks Right | Hackaday

    hackaday.com 25 Jun '17, 2am

    [Rick Winscott]’s RO-V Remotely Operated Vehicle instructable shows you how to make this cool-looking and capable robot. The rover, a 1/10th scale truggy, sports a chassis printed in silver and black PLA. It’s got a wireless router mounted on the back, and a webcam in a 2-servo gimbal...

  • A Goldmine Of Radio Shack Goodies Is Up For Auction | Hackaday

    hackaday.com 24 Jun '17, 11pm

    Where did you buy the parts for your first electronic project? That’s a question likely to prompt a misty-eyed orgy of reminiscences from many Hackaday readers, if ever we have heard one. The chances are that if you are from North America or substantial parts of the English-speaking w...

  • A Goldmine Of Radio Shack Goodies Is Up For Auction | Hackaday

    hackaday.com 24 Jun '17, 11pm

    Where did you buy the parts for your first electronic project? That’s a question likely to prompt a misty-eyed orgy of reminiscences from many Hackaday readers, if ever we have heard one. The chances are that if you are from North America or substantial parts of the English-speaking w...

  • Hackaday Prize Entry: A 3D Printer Management System | Hackaday

    hackaday.com 24 Jun '17, 8pm

    Since the first desktop 3D printers, people have been trying to figure out a way to manage desktop 3D printers and turn them into tiny little automated factories. One of the first efforts was a conveyor belt build plate that was successfully used by MakerBot until it wasn’t anymore. O...

  • 12-Foot Guitar Takes The Stage

    12-Foot Guitar Takes The Stage | Hackaday

    hackaday.com 24 Jun '17, 5pm

    Musical festivals are fun and exciting. They are an opportunity for people to perform and show-off their art. The Boulevardia event held this June in Kansas City was one such event, where one of the interactive exhibits was a 12-foot guitar that could be played . [Chris Riebschlager] ...

  • Fail of the Week: Tracking Meteors with Weather Radio | Hackaday

    hackaday.com 24 Jun '17, 2pm

    It’s not hard to detect meteors: go outside on a clear night in a dark place and you’re bound to see one eventually. But visible light detection is limiting, and knowing that meteors leave a trail of ions means radio detection is possible. That’s what’s behind this attempt to map mete...

  • Fail of the Week: Tracking Meteors with Weather Radio | Hackaday

    hackaday.com 24 Jun '17, 2pm

    It’s not hard to detect meteors: go outside on a clear night in a dark place and you’re bound to see one eventually. But visible light detection is limiting, and knowing that meteors leave a trail of ions means radio detection is possible. That’s what’s behind this attempt to map mete...

  • Fake Your ID Photos – the 3D Way https://t.co/26UIm4onTP

    Fake Your ID Photos – the 3D Way | Hackaday

    hackaday.com 24 Jun '17, 11am

    Photographs for identification purposes have strict requirements. Lighting, expression, and framing are all controlled to enable authorities to quickly and effectively use them to identify individuals reliably. But what if you created an entirely fake photograph from scratch? That’s e...

  • Spice Up Your Shop with a VW Pickup Wall Decoration

    Spice Up Your Shop with a VW Pickup Wall Decoration | Hackaday

    hackaday.com 24 Jun '17, 8am

    Seeing a half car is always a disconcerting experience. Especially when that half car is about 14 feet up in the air. [PanasonicModelRC6015] — We’ll call him [RC6015] for short — has gone and mounted 1/2 (actually more like 1/4) of a VW Rabbit Caddy pickup MK1 up on his shop wall . Th...

  • Heathkit’s New RF Meter: Who is it for?:

    Heathkit’s New RF Meter: Who is it for? | Hackaday

    hackaday.com 24 Jun '17, 5am

    Electronic hackers and ham radio operators of a certain age have a soft spot for the Heathkit brand. Maybe that’s why we had a rush of nostalgia when we saw the Heathkit site had a new product. You may recall that Heathkit had gone the way of the dodo until a few years ago when the br...

  • EV3DEV Lego Linux Updated | Hackaday

    hackaday.com 24 Jun '17, 2am

    The ev3dev Linux distribution got an update this month. The distribution targets the Lego EV3 which is a CPU Lego provides to drive their Mindstorm robots. The new release includes the most recent kernel and updates from Debian 8.8. It also contains tools needed for some Wi-Fi dongles...

  • EV3DEV Lego Linux Updated | Hackaday

    hackaday.com 24 Jun '17, 2am

    The ev3dev Linux distribution got an update this month. The distribution targets the Lego EV3 which is a CPU Lego provides to drive their Mindstorm robots. The new release includes the most recent kernel and updates from Debian 8.8. It also contains tools needed for some Wi-Fi dongles...

  • Nominal Lumber Sizes Land Home Depot And Menards In Hot Water | Hackaday

    hackaday.com 23 Jun '17, 11pm

    Hard times indeed must have fallen upon the lawyers of the American mid-west, for news reaches us of a possible class-action lawsuit filed in Chicago that stretches the bounds of what people in more gainful employment might consider actionable. It seems our legal eagles have a concern...

  • Getting Data Off Proprietary Glucometers Gets a Little Easier

    Getting Data Off Proprietary Glucometers Gets a Little Easier | Hackaday

    hackaday.com 23 Jun '17, 8pm

    Glucometers (which measure glucose levels in blood) are medical devices familiar to diabetics, and notorious for being proprietary. Gentoo Linux developer [Flameeyes] has some good news about his open source tool to read and export data from a growing variety of glucometers. For [Flam...