hackaday.com Archives - 01 August 2015, Saturday

  • Waking Up Is Easy With this Bed Ejection System | Hackaday

    hackaday.com 31 Jul '15, 11pm

    Waking up is hard. Beds are just so darn comfortable when you wake up… which is precisely why you need to upgrade your bed with one of these. Made by the only guy we would trust to create such a device, [Colin Furze] has really upped the ante on his projects — he calls this one the Hi...

  • Hacklet 68 – Rocket Projects

    Hacklet 68 – Rocket Projects | Hackaday

    hackaday.com 31 Jul '15, 8pm

    There’s just something amazing about counting down and watching a rocket lift off the pad, soaring high into the sky. The excitement is multiplied when the rocket is one you built yourself. Amateur rocketry has been inspiring hackers and engineers for centuries. In the USA, modern ama...

  • Build Your Own CPU? That’s the Easy Part! | Hackaday

    hackaday.com 31 Jul '15, 5pm

    You want to build your own CPU? That’s great fun, but you might find it isn’t as hard as you think. I’ve done several CPUs over the years, and there’s no shortage of other custom CPUs out there ranging from pretty serious attempts to computers made out of discrete chips to computers m...

  • Quantum Mechanics in your Processor: Tunneling and Transistors - Hackaday #physics

    Quantum Mechanics in your Processor: Tunneling and Transistors | Hackaday

    hackaday.com 31 Jul '15, 4pm

    By the turn of the 19th century, most scientists were convinced that the natural world was composed of atoms. [Einstein’s] 1905 paper on Brownian motion, which links the behavior of tiny particles suspended in a liquid to the movement of atoms put the nail in the coffin of the anti-at...

  • 44 Mac Pros Racked Up to Replace Each Rack of 64 Mac Minis - We were delighted at a seeing 96 MacBook Pros in a ra...

    44 Mac Pros Racked Up to Replace Each Rack of 64 Mac Minis | Hackaday

    hackaday.com 31 Jul '15, 4pm

    We were delighted at a seeing 96 MacBook Pros in a rack a couple of days ago which served as testing hardware. It’s pretty cool so see a similar exquisitely executed hack that is actually in use as a production server. imgix is a startup that provides image resizing for major web plat...

  • Open Hybrid Gives you the Knobs and Buttons to your Digital Kingdom

    Open Hybrid Gives you the Knobs and Buttons to your Digital Kingdom | Hackaday

    hackaday.com 30 Jul '15, 11pm

    With a sweeping wave of complexity that comes with using your new appliance tech, it’s easy to start grumbling over having to pull your phone out every time you want to turn the kitchen lights on. [Valentin] realized that our new interfaces aren’t making our lives much simpler, and bo...

  • Maglev, Submersibles, and More at Maker Faire Detroit | Hackaday

    hackaday.com 30 Jul '15, 8pm

    This past weekend the Maker Faire returned to the motor city. While it seemed a bit smaller than previous years, the event still brought in a ton of awesome makers from the metro Detroit area and beyond. Although we don’t feature too many woodworking projects, there were quite a few w...

  • We Should 3D Scan People

    We Should 3D Scan People | Hackaday

    hackaday.com 30 Jul '15, 5pm

    It’s really simple to come up with a laundry list of how adding 3D scanning to medical procedures isn’t feasible. It would add a huge amount of expense in the form of equipment, personnel, and training. But I would wager the same arguments came up when first introducing MRI technology...

  • Ghost Guitar Plays Hendrix | Hackaday

    hackaday.com 30 Jul '15, 3pm

    You could never make a self strumming guitar this way. The reason being that each open string has a fundamental frequency. As he demonstrated with his sweeps, the string will only ever resonate in a meaningful way at its fundamental frequency. In order to make the strings vibrate to a...

  • The Biohacking Movement and Open Source Insulin

    The Biohacking Movement and Open Source Insulin | Hackaday

    hackaday.com 30 Jul '15, 2pm

    In March of 2014, I knew my eight year old daughter was sick. Once borderline overweight, she was now skeletally thin and fading away from us. A pre-dawn ambulance ride to the hospital gave us the devastating news – our daughter had Type 1 diabetes, and would be dependent on insulin i...

  • One Way to Recharge Alkaline Batteries | Hackaday

    hackaday.com 30 Jul '15, 11am

    It says it right on the side of every alkaline battery – do not attempt to recharge. By which of course the manufacturer means don’t try to force electrons back into the cell. But [Cody] figured he could work around that safety warning chemically, by replacing the guts of an alkaline ...

  • An Internet Speedometer With A Dekatron | Hackaday

    hackaday.com 30 Jul '15, 8am

    [Sprite_tm], like most of us, is fascinated with the earlier ways of counting and controlling electrons. At a hacker convention, he found an old Dekatron tube hooked up to a simple spinner circuit. The prescription for this neon infatuation was to build something with a Dekatron, but ...

  • Hackaday Prize Entry: SnapVCC

    Hackaday Prize Entry: SnapVCC | Hackaday

    hackaday.com 30 Jul '15, 5am

    While it’s the easiest way to lay out a simple circuit for prototyping, breadboards are a pain. They are the ultimate kludge; they work well enough, but no one will ever say that a solderless breadboard is the most elegant solution. [Mahesh] isn’t completely fixing the problems of sol...

  • Operation Drone Rescue

    Operation Drone Rescue | Hackaday

    hackaday.com 30 Jul '15, 2am

    When [Harrison Howes] lost his Syma X5C drone on a neighbor’s roof, he thought all hope was lost. There was no easy access to get up there, and the neighbor wasn’t interested in him attempting a rescue. Months past, and [Harrison] got a new quad. And not just any quad — a DJI Phantom ...

  • NES Reborn as Nexus Player and NES

    NES Reborn as Nexus Player and NES | Hackaday

    hackaday.com 29 Jul '15, 11pm

    Anyone who has a Raspberry Pi and an old Nintendo has had the same thought. “Maybe I could shove the Pi in here?” This ran through [Adam’s] head, but instead of doing the same old Raspberry Pi build he decided to put a Nexus Player inside of this old video game console , with great su...

  • Old Kindle Upcycled to Emailable Fridge Messageboard

    Old Kindle Upcycled to Emailable Fridge Messageboard | Hackaday

    hackaday.com 29 Jul '15, 8pm

    We’ve all got a pile of old devices lying around somewhere that are waiting to be torn down for parts, or turned into something useful. [Peter Voljek] decided to do the latter with an old Kindle eBook reader, turning it into a neat message board that can be stuck onto a fridge . With ...

  • Review: Single Board 65C02 and 65C816 Computers

    Review: Single Board 65C02 and 65C816 Computers | Hackaday

    hackaday.com 29 Jul '15, 5pm

    Both the ’02 and ‘816-based single board computers from WDC feature an ACIA, a PIA, and two VIAs – the second VIA is connected to a microUSB interface designed for WDC’s Terbium IDE (TIDE). More on TIDE in a bit. Each board also has 32kB of SRAM and a 128kB Flash chip mapped into the ...

  • University Peristaltic Pump Has Hacker Heritage | Hackaday

    hackaday.com 29 Jul '15, 3pm

    A team at [Vanderbilt University] have been hacking together their own peristaltic pumps . Peristaltic pumps are used to deliver precise volumes of fluid for research, medical and industrial applications. They’re even occasionally used to dose fish tanks . They work by squeezing the f...

  • Say It with Me: Input Impedance

    Say It with Me: Input Impedance | Hackaday

    hackaday.com 29 Jul '15, 2pm

    In the “Say It with Me” series, we’ll take a commonly used concept out of electronics and explain it the best we can. If there’s something that’s been bugging you, or a certain term or concept that keeps cropping up in your projects, let us know . We’ll write about it! What’s up with ...

  • Teardown of Intel RealSense Gesture Camera Reveals Projector Details

    Teardown of Intel RealSense Gesture Camera Reveals Projector Details | Hackaday

    hackaday.com 29 Jul '15, 11am

    [Chipworks] has just released the details on their latest teardown on an Intel RealSense gesture camera that was built into a Lenovo laptop. Teardowns are always interesting (and we suspect that [Chipworks] can’t eat breakfast without tearing it down), but this one reveals some fascin...

  • Talking, Foot-Pedal-Controlled Bench Probes for VirtualBench | Hackaday

    hackaday.com 29 Jul '15, 8am

    Developing new products can be challenging during the debug and test phases, often you have your head down trying to probe the lead of some SOT23 transistor, and just when you get it, you scan your eyes up and find that your multimeter is measuring resistance and not voltage. [Charles...

  • The Simplest Steam Engine

    The Simplest Steam Engine | Hackaday

    hackaday.com 29 Jul '15, 5am

    [RimstarOrg] has posted an awesome writeup on his Hero’s steam engine . Hero’s engine is a Greek design from the first century and is the earliest known steam engine. It’s amazing to think he developed the engine seventeen centuries before the industrial revolution, and yet it was lar...

  • Retrotechtacular: Fantastic Backyard Inventions of Yore | Hackaday

    hackaday.com 29 Jul '15, 2am

    News corporation [British Pathé] created many newsreels and documentaries throughout their 60-year history. Recently, the company released scores of films from their archives and put them on the internet. Here is a delightful collection of short films they created that highlight stran...

  • Polarization Camera Views the Invisible

    Polarization Camera Views the Invisible | Hackaday

    hackaday.com 28 Jul '15, 11pm

    The build uses a standard Raspberry Pi 2 and a 5 megapixel camera which sits behind a software-controlled electro-optic polarization modulator that was scavenged from an auto-darkening welding mask. The mask is essentially a specialized LCD screen, which is easily electronically contr...

  • 96 MacBook Pros: Most Expensive Server Rack We’ve Ever Seen

    96 MacBook Pros: Most Expensive Server Rack We’ve Ever Seen | Hackaday

    hackaday.com 28 Jul '15, 8pm

    Ever see a standard server rack stuffed full with 8-dozen MacBook Pros? Well now you have . Now before the torrential downpour of anti-Mac comments come, this actually has a purpose. No seriously. Besides, what company in their right mind would spend that much money on a rack full of ...

  • Embed with Elliot: There is no Arduino “Language” | Hackaday

    hackaday.com 28 Jul '15, 5pm

    Rants like this drive me nuts. Get over yourself. The Arduino platform wasn’t designed for hardcore embedded systems junkies. It was designed for students, artists, and hobbyists without a computer science or electrical engineering background. It is precisely for this reason that I us...

  • Open Source FPGA Toolchain Builds CPU | Hackaday

    hackaday.com 28 Jul '15, 3pm

    When you develop software, you need some kind of toolchain. For example, to develop for an ARM processor, you need a suitable C compiler, a linker, a library, and a programmer. FPGAs use a similar set of tools. However, instead of converting source code to machine language, these tool...

  • CommVEx 2015: What Happens When Commodore Users Gather | Hackaday

    hackaday.com 28 Jul '15, 2pm

    I’m not getting any younger, in fact I’m getting older by the day. This fact along with the fact that this year is the 30th anniversary of the Commodore C-128 and the original Commodore Amiga prompted me to attend this year’s CommVEx in Las Vegas lest I not be around for the next sign...

  • 3D Mouse Drives Robot Arm | Hackaday

    hackaday.com 28 Jul '15, 11am

    You’ve built the perfect robotic arm. How do you drive it? If you are [angrymop] you interface a 3D mouse from 3DConnexion via a few microcontroller boards. The Spacenavigator mouse is a staple anywhere professional CAD people are working, and it looks like it is a natural fit for a r...

  • Hackaday Prize Worldwide : New Delhi Kicad + Show and Tell | Hackaday

    hackaday.com 28 Jul '15, 8am

    ] traveled all the way from Bengaluru to attend the KiCad workshop, and brought along two of his hacks. An Arduino audio laser display from his upcoming Python programming book – Python Playground . It’s quite an interesting hack . A computer processes an audio stream, doing some FFT ...