hackaday.com Archives - 05 September 2015, Saturday

  • Orange is the New ($15) Pi

    Orange is the New ($15) Pi | Hackaday

    hackaday.com 05 Sep '15, 8am

    When the Raspberry Pi came on the scene it was hard to imagine that you could get a fairly complete Linux system for such a low price. The Pi has gotten bigger, of course, but there are still a few things you miss when you try to put one into a project. Wifi, comes to mind, for exampl...

  • Hackaday Prize Semifinalist: A Low Cost, DIY Fuel Cell | Hackaday

    hackaday.com 05 Sep '15, 5am

    Electronic cars and planes are the wave of the future, or so we’re told, but if you do the math on power densities, the future looks bleak. Outside of nuclear power, you can’t beat the power density of liquid hydrocarbons, and batteries are terrible stores of energy. How then do we ta...

  • RaspiDrums Uses Expensive Sensors

    RaspiDrums Uses Expensive Sensors | Hackaday

    hackaday.com 05 Sep '15, 2am

    Piezoelectric sensors are great for monitoring mechanical impacts with a microcontroller. Whether you’re monitoring knocks on a door or watching a heartbeat, they are a cheap way to get the job done. They do have their downsides, though, so when [Jeremy] wanted to build an electronic ...

  • Better TV Via Hacking | Hackaday

    hackaday.com 04 Sep '15, 11pm

    Smart TVs are just dumb TVs with a computer and a network connection, right? In a variation of rule 34, if it has a computer in it, someone will hack it. When [smarttvhacker] bought a Sony 48 inch smart TV, he noticed all the software licenses listed in the manual and realized that wa...

  • Demonstrating Science at Harvard University | Hackaday

    hackaday.com 04 Sep '15, 8pm

    What if there was a job where you built, serviced, and prepared science demonstrations? This means showing off everything from principles of physics, to electronic theory, to chemistry and biology. Would you grab onto that job with both hands and never let go? That was my reaction whe...

  • Hacklet 73 – Parallax Propeller Projects

    Hacklet 73 – Parallax Propeller Projects | Hackaday

    hackaday.com 04 Sep '15, 5pm

    In 2006, Parallax, Inc wasn’t new to the electronics business. They’d been around since 1987. Still, for a relatively small company, jumping into custom chips is a big leap. Parallax didn’t just jump into some cookie cutter ASIC, they made their own parallel multi-core microcontroller...

  • Sphero Wasn’t Actually Behind the BB-8 | Hackaday

    hackaday.com 04 Sep '15, 3pm

    Despite quite a few articles stating Sphero was behind the technology that made the real movie BB-8 droid, like this Tech Crunch article: Sphero , makers of the eponymous spherical robots that you control with your smartphone — as well as the new BB-8 droid in Star Wars: The Force Awa...

  • Embed with Elliot: Practical State Machines | Hackaday

    hackaday.com 04 Sep '15, 2pm

    No discussion of state engines is complete without mention of protothreads. Protothreading is a method of cooperative multitasking. It involves taking a function or task that might take a while to complete, and reorganizing it as a state engine that performs a series of smaller tasks....

  • Experimental Theater Helps Field test Haptic Navigation Device

    Experimental Theater Helps Field test Haptic Navigation Device | Hackaday

    hackaday.com 04 Sep '15, 11am

    The “absorbed device user” meme, like someone following Google Maps on a smart phone so closely that they walk out into traffic, is becoming all too common. Not only can an interface that requires face time be a hazard to your health in traffic, it’s also not particularly useful to th...

  • Tint your Epoxy Resin with Toner Powder

    Tint your Epoxy Resin with Toner Powder | Hackaday

    hackaday.com 04 Sep '15, 8am

    Epoxy resin is useful stuff. Whether for gluing stuff together or potting components, epoxy is a cheap and versatile polymer that finds its way into many hackish projects. But let’s face it – the stock color of most commercially available epoxies lacks a certain pizzazz. Luckily, [Rup...

  • Hackaday Prize Semifinalist: A Mobile Node

    Hackaday Prize Semifinalist: A Mobile Node | Hackaday

    hackaday.com 04 Sep '15, 5am

    The future is the Internet of Things, or so we’re told, and with that comes the requirement for sensors attached to the Internet that also relay GPS and location data. [Camilo]’s MobileNodes do just that . He’s designed a single device that will listen to any sensor, upload that data ...

  • Sending Serial Data from… Excel?

    Sending Serial Data from… Excel? | Hackaday

    hackaday.com 04 Sep '15, 2am

    When you think about serial communications, Microsoft Excel isn’t typically the first program that springs to mind. But this spreadsheet has a rather powerful scripting language hidden away inside it, which can, with a little coding, be used to send and receive data over your serial p...

  • The Kraakdoos — Musical Abuser of an Ancient OpAmp

    The Kraakdoos — Musical Abuser of an Ancient OpAmp | Hackaday

    hackaday.com 03 Sep '15, 11pm

    A friend from the newly founded Yeovil Hackerspace introduced me to a device known as “The Kraakdoos” or cracklebox. The cracklebox is an early electronic instrument produced by STEIM in the 1970s. The instrument consists of a single PCB with a number of copper pads exposed on one sid...

  • Mini Fridge turned Gameboy Puts Hot Games on Ice

    Mini Fridge turned Gameboy Puts Hot Games on Ice | Hackaday

    hackaday.com 03 Sep '15, 8pm

    The plain old white mini fridge, a staple of many dorm rooms could use a little decoration. The resemblance to a classic gameboy is not that hard to imagine with some novelty stickers, but [ModPurist] went the extra mile with his Cold Boy. Making a mini fridge into a playable gameboy ...

  • How to Build Anything Using Delrin and a Laser Cutter

    How to Build Anything Using Delrin and a Laser Cutter | Hackaday

    hackaday.com 03 Sep '15, 5pm

    When machining metal, a press-fit between two parts necessitates tolerances tighter than ±0.0005 in. (0.0127 mm) between the mating surfaces such that the two parts that are pressed together will deform slightly and cannot separate under normal operating conditions. Delrin, because of...

  • Hackaday Prize Worldwide: Washington DC | Hackaday

    hackaday.com 03 Sep '15, 3pm

    Join us for a Meetup on Saturday, September 12th near Washington DC. The Hackaday Crew is headed out to the DC area a week from Saturday and we want to hang out with you. We’ll be hosting a meetup at Nova Labs hackerspace in Reston, Virgina which is on the Northwest side of DC. We’ll ...

  • Learn 3D Modeling in Your Browser | Hackaday

    hackaday.com 03 Sep '15, 2pm

    Every tool is learnable imho, you just need a bit of time and the will to do it. Especially today, where you can basically get video tutorials, user forums and a lot of other sources of information at your finger tip and most of the tools have a manual that at least covers each functi...

  • Being Picked up by a Swarm of Drones May Become Reality | Hackaday

    hackaday.com 03 Sep '15, 1pm

    These multirotors are pretty much doomed to fail for human transportation – as said before, it is way less efficient than a fixed wing or a normal helicopter/autogyro. And the worst part is that any motor or electronics failure is not recoverable. Fixed wing plane can glide and helis ...

  • Why IoT will Fail (and How to Save It)

    Why IoT will Fail (and How to Save It) | Hackaday

    hackaday.com 03 Sep '15, 11am

    Buzzword technology has two possible fates: they fail and disappear or they succeed and disappear. Remember at one time “multimedia” and “networking” were buzzwords. They succeeded and now they’ve vanished into ubiquity. Of course, there are plenty of failed buzzwords (like telecosm) ...

  • Making a Door that Opens Both Ways | Hackaday

    hackaday.com 03 Sep '15, 8am

    How many times have you walked into the wrong side of the door? How many times have you been momentarily confused as to whether or not you push or pull that obscure door handle which isn’t so obvious in its intended use? What if you never had to worry about doors again? What if we cou...

  • Hackaday Prize Semifinalist: Low Cost Radiography | Hackaday

    hackaday.com 03 Sep '15, 5am

    For the past year, [Adam] has been working full-time on developing a low-cost x-ray system for developing nations. He has more than 3,500 hours into the project. A few months ago, we announced the 2015 Hackaday Prize, with a theme of, ‘build something that matters.’ A low-cost x-ray w...

  • Hack an Editor: Fonts for Programming | Hackaday

    hackaday.com 03 Sep '15, 2am

    We’ve recently noticed two different fonts aimed at programmers, each with a different approach to editor customization. The first, Fira Code , transparently converts common programming digraphs into single characters. For example, <- becomes an arrow and != (or <>) becomes a proper n...

  • Retrotechtacular: Häfla Hammerforge Healed

    Retrotechtacular: Häfla Hammerforge Healed | Hackaday

    hackaday.com 02 Sep '15, 11pm

    Visit any renaissance fair across the United States this fall and you’ll undoubtedly find a blacksmith. He’ll be sweating away in a tent, pounding on a piece of glowing steel set against an anvil. While the practice of the single blacksmith endures today, high-production ‘works of day...

  • 3D Objects From a Laser Cutter | Hackaday

    hackaday.com 02 Sep '15, 8pm

    Actors want to be singers and singers want to be actors. The hacker equivalent to this might be that 3D printers want to be laser cutters or CNC machines and laser cutters want to be 3D printers. When [Kurt] and [Lawrence] discovered their tech shop acquired a 120 Watt Epilog Fusion l...

  • A Tale of Three Soldering Iron Controllers | Hackaday

    hackaday.com 02 Sep '15, 5pm

    [ZL2PD] needed to replace an old Weller soldering station and decided not to go with one of the cheap soldering stations you can find all over the Internet. He has a long story about why he had to design his own controller, but you never have to explain that to us. He kept detailed no...

  • How CMOS Works: Some Final Words About CMOS

    How CMOS Works: Some Final Words About CMOS | Hackaday

    hackaday.com 02 Sep '15, 3pm

    Speaking of substrate or the base layer that everything is grown on, it is either a N type or a P type. Most often it is a P-substrate these days which allows the N-channel devices to be grown directly on it, like NMOS technology did, the predecessor to CMOS. Before we can fabricate a...

  • V2V: A Safer Commute with Cars Sharing Status Updates | Hackaday

    hackaday.com 02 Sep '15, 2pm

    “Until dependable self-driving cars make their way into garages and driveways across the country” Really? I’ve been constantly surprised to see blogs in the last two or three years about self-driving cars on public roads. It seems like poor and risky engineering to me. Who would be gu...

  • Save WiFi: Act Now To Save WiFi From The FCC | Hackaday

    hackaday.com 02 Sep '15, 11am

    Right now, the FCC is considering a proposal to require device manufacturers to implement security restricting the flashing of firmware. We posted something about this a few days ago , but completely missed out on a call to action. Contrary to conventional wisdom, we live under a syst...

  • Recycled Factory Recycles Soda Bottles

    Recycled Factory Recycles Soda Bottles | Hackaday

    hackaday.com 02 Sep '15, 8am

    All over the world, mountains of polyethylene terephthalate (PET) plastics are available for recycling in the form of soda bottles. And wherever there is enough cheap raw material, a market is sure to emerge for it. One brilliant inventor in Brazil has decided to capitalize on this ma...

  • Hackaday Prize Semifinalist: Bendy Solar Bluetooth Tags | Hackaday

    hackaday.com 02 Sep '15, 5am

    Last January, [DrYerzina]’s sister couldn’t find her cat. The family searched the neighborhood for two hours until the cat came out from underneath a bed, proving once again cats own humans, not the other way around. A solution to this problem would come in the form of technology, spe...