hackaday.com Archives - 03 July 2015, Friday

  • Hacklet 54 – Virtual Reality Projects

    Hacklet 54 – Virtual Reality Projects | Hackaday

    hackaday.com 03 Jul '15, 8pm

    Virtual Reality is finally coming of age. Hackers, Makers and Engineers have dreamed of creating immersive interfaces for years. From the first flight simulators to today’s cellphone powered head mounted displays, VR has always been an exciting field. Many of the advances today are be...

  • Tiny x86 Systems With Graphics Cards | Hackaday

    hackaday.com 03 Jul '15, 8am

    The Intel Edison is out, and that means there’s someone out there trying to get a postage-stamp sized x86 machine running all those classic mid-90s games that just won’t work with modern hardware. The Edison isn’t the only tiny single board computer with an x86 processor out there; th...

  • Hackaday Prize Entry: What To Do With A Bunch Of Old Computer Adapters | Hackaday

    hackaday.com 03 Jul '15, 5am

    Back in the old days of 2014 when Radio Shack still existed, you could drive up to any strip mall in America and buy D-sub connectors that were made all the way back in 1972. Yes, connectors for all those SCSI, serial, parallel, and other weird ports you’d find on old computers could ...

  • Optics Laboratory Made From LEGO

    Optics Laboratory Made From LEGO | Hackaday

    hackaday.com 03 Jul '15, 2am

    16A lot of engineers, scientists, builders, makers, and hackers got their start as children with LEGO. Putting those bricks together, whether following the instructions or not, really brings out the imagination. It’s not surprising that some people grow up and still use LEGO in their ...

  • 15 Quadcopters Up for Grabs in Wings, Wheels, and Propellers Contest | Hackaday

    hackaday.com 02 Jul '15, 11pm

    Have a project that moves? Then get it entered this week for your chance at one of 15 quadcopters. We’ll award a Crazyflie 2.0 to each of 15 fantastic examples of projects that move with wings, wheels, or propellers (the kind on boats or on flying things). Here’s what you need to do b...

  • Solar-Cell Laser Communication System | Hackaday

    hackaday.com 02 Jul '15, 8pm

    Forget the soup cans connected by a piece of string. There’s now a way to communicate wirelessly that doesn’t rely on a physical connection… or radio. It’s a communications platform that uses lasers to send data , and it’s done in a way that virtually anyone could build. This method f...

  • New Part Day: Memristors | Hackaday

    hackaday.com 02 Jul '15, 5pm

    For the last few years, the people in the know have been wondering about the memristor. The simplest explanation of what a memristor is comes from the name itself – it’s a memory resistor . In practice it’s a little more complex, but this basic understanding is enough to convey the fa...

  • Logic Noise: Ping-pong Stereo, Mixers, and More

    Logic Noise: Ping-pong Stereo, Mixers, and More | Hackaday

    hackaday.com 02 Jul '15, 2pm

    For this, we’ll need some kind of amplification, and our old friend, the 4069UB, will be doing all of the heavy lifting. Honestly, this week’s circuitry is just an elaboration of the buffer amplifiers and variable overdrive circuits we looked at before. To keep things interesting we’l...

  • We’re Hiring Contributors And Social Media Masterminds | Hackaday

    hackaday.com 02 Jul '15, 12pm

    Hackaday has been expanding into all kinds of new areas. We find ourselves stretched a bit thin and it’s time to ask for help. Want to lend a hand while making some extra dough to plow back into your projects? These are work-from-home (or wherever you like) positions and we’re looking...

  • Why Build Furniture When you can Grow it?

    Why Build Furniture When you can Grow it? | Hackaday

    hackaday.com 02 Jul '15, 11am

    [Gavin Munro] is turning the standard paradigm of furniture making on its head. Instead of harvesting trees and slicing them up into boards – or worse, turning them into sawdust to be used for particle board – [Gavin] is literally growing furniture . Supple young willow saplings are p...

  • Retro-fit old radio with Arduino and FM module

    Retro-fit old radio with Arduino and FM module | Hackaday

    hackaday.com 02 Jul '15, 8am

    “You can’t put new wine in old bottles” – so the saying goes. But you would if you’re a hacker stuck with a radio built in 2005, which looked like it was put together using technology from 1975. [Marcus Jenkins] did just that, pulling out the innards from his old radio and converting ...

  • Hackaday Prize Entry: An E-Juice Robot

    Hackaday Prize Entry: An E-Juice Robot | Hackaday

    hackaday.com 02 Jul '15, 5am

    E-cigarettes are increasingly popular, with weird hipster head shops popping up in towns around the globe. While you can buy this e-juice at gas stations and just about anywhere else analog cigarettes are sold, there are inevitably people who want to mix their own propylene glycol, gl...

  • DIY Air Compressor Made From Refrigerator and Fire Extinguisher | Hackaday

    hackaday.com 02 Jul '15, 2am

    Using a fire extinguisher as an air tank this way is very specifically Not Recommended for valid safety reasons. It’s bad even if it’s relatively new, because fire extinguishers are not meant to be filled with air that can contain water and they can corrode quickly when not in normal ...

  • Hacking a $100 Signal Generator

    Hacking a $100 Signal Generator | Hackaday

    hackaday.com 01 Jul '15, 11pm

    Signal generators are a useful piece of kit to have on your electronics bench. The downside is that they tend to be rather expensive. If you have $100 to drop on a new toy, the MHS-5200A is a low cost, two channel, 25 MHz generator that can be found on eBay. The downside is the softwa...

  • 3 Hours until Collabatorium | Hackaday

    hackaday.com 01 Jul '15, 10pm

    This is your 3-hour warning. We’re kicking off our first ever Collabatorium and you’re invited. To join in just click the “Request to join this project” found on the left sidebar of the Hacker Channel page. Once you’ve joined you can open up the Group Messaging for that project, one o...

  • DNS Tunneling with an ESP8266

    DNS Tunneling with an ESP8266 | Hackaday

    hackaday.com 01 Jul '15, 8pm

    There’s a big problem with the Internet of Things. Everything’s just fine if your Things are happy to sit around your living room all day, where the WiFi gets four bars. But what does your poor Thing do when it wants to go out and get a coffee and it runs into a for-pay hotspot? [Yaka...

  • Your Brain Thinks Its Burning You, But It’s Not

    Your Brain Thinks Its Burning You, But It’s Not | Hackaday

    hackaday.com 01 Jul '15, 5pm

    In the cult classic Dune, there’s this fictional device called the “Pain Box”. If you touch it, you’ll feel like your hand is burning, but in reality, no tissue is being damaged. In the real world this is called the Thermal Grill Illusion , which was discovered back in 1896. Much to o...

  • Embed with Elliot: We Don’t Need No Stinkin’ Cs

    Embed with Elliot: We Don’t Need No Stinkin’ RTCs | Hackaday

    hackaday.com 01 Jul '15, 2pm

    A lot of microcontroller projects out there need some sense of wall-clock time. Whether you’re making (yet another) crazy clock, logging data, or just counting down the time left for your tea to steep, having access to human time is key. The simplest solution is to grab a real-time-cl...

  • Miniature Cannon Packs a Punch, Shows off Manual Machining Skills

    Miniature Cannon Packs a Punch, Shows off Manual Machining Skills | Hackaday

    hackaday.com 01 Jul '15, 11am

    CNC machine tools are getting ever more affordable for the amateur machinist, and they’re an enabling technology for many projects. But you’ve got to respect the old school approach to turning hunks of metal into finished parts with no computer control. [Ticktock34] shows off his skil...

  • Amazingly Detailed Robotics Ground Vehicle Guide

    Amazingly Detailed Robotics Ground Vehicle Guide | Hackaday

    hackaday.com 01 Jul '15, 8am

    [Andrey Nechypurenko] has put together an excellent design guide describing the development of his a20 grou1nd vehicle and is open sourcing all the schematics and source code. One of [Andrey]’s previous designs used a Pololu tracked chassis. But this time he designed everything from s...

  • Hackaday Prize Entry: Laptop Batteries For A Power Bank

    Hackaday Prize Entry: Laptop Batteries For A Power Bank | Hackaday

    hackaday.com 01 Jul '15, 5am

    USB power banks – huge batteries that will recharge your phone or tablet – are ubiquitous these days. You can buy them at a gas station or from your favorite online retailer in any capacity you would ever want. Most of these power banks have a tremendous shortcoming; they need to char...

  • Generate Graph Paper — Complete with Jolly Wrencher

    Generate Graph Paper — Complete with Jolly Wrencher | Hackaday

    hackaday.com 01 Jul '15, 2am

    There’s a lot of talk about CAD software these days, and don’t get us wrong, they’re an essential tool of the trade. But for roughing out an idea, nothing tops paper and a pencil. Even the back of a cocktail napkin will do. If you’re like us, at some point you may have had an engineer...

  • Disassembled Mouse Keeps Track Of Gas Meter | Hackaday

    hackaday.com 30 Jun '15, 11pm

    Fantastic hack, but I wonder if it wasn’t overly-complicated? I wouldn’t try to photograph the dial and read it like a human brain does. I would simply measure the reflected brightness of a slice of the dial. When the brightness has bottomed out and returns to regular level again, I k...

  • Retrotechtacular: Building Hammond Organ Tones

    Retrotechtacular: Building Hammond Organ Tones | Hackaday

    hackaday.com 30 Jun '15, 8pm

    Here’s a short film made by the Hammond Organ Company with the intent to educate and persuade potential consumers. Right away we are assured that Hammond organs are the cream of the crop for two simple reasons: the tone generator that gives them that unique Hammond sound, and the grea...

  • Gates to FPGAs: TTL Electrical Properties

    Gates to FPGAs: TTL Electrical Properties | Hackaday

    hackaday.com 30 Jun '15, 6pm

    A transistor when used as a switch can go into a state known as saturation. Part of the definition of “transistor saturation” includes the state when both Base-Emitter and Base-Collector junctions are forward biased, however the property of interest here is that it is also slow to tur...

  • Talk of the Town: Hacker Channel Tomorrow

    Talk of the Town: Hacker Channel Tomorrow | Hackaday

    hackaday.com 30 Jun '15, 5pm

    Get in touch with Hackers everywhere. Take part in the Collabatorium tomorrow, live! Things get started on Wednesday, July 1st at 6:30pm PDT (UTC-7). Hundreds of hackers will be on hand discussing what they’re building, all the stuff happening in the hacker-sphere these days, and join...

  • Maker Faire Kansas City: Entrepreneurial Spirit Taking Shape | Hackaday

    hackaday.com 30 Jun '15, 2pm

    One of the great things about an event like the Kansas City Maker Faire is that there are so many reasons that makers sign up to show their things. Some makers come to teach a skill, and others to sell their handmade creations. Those with an entrepreneurial streak looking to launch a ...

  • Beest of an RC Toy

    Beest of an RC Toy | Hackaday

    hackaday.com 30 Jun '15, 11am

    Sometimes hackers and makers hack and make stuff just because they can. Why spend hours in a CAD program designing a gazillion gears, brackets and struts? Why cut them all out on a homemade CNC? Why use a PIC and perf board to control everything? Because we can. Well, because [Est] ca...

  • Vibrating Distance Torch Illuminates the Dark without Light

    Vibrating Distance Torch Illuminates the Dark without Light | Hackaday

    hackaday.com 30 Jun '15, 8am

    If you’ve ever had to move around in a dark room before, you know how frustrating it can be. This is especially true if you are in an unfamiliar place. [Brian] has attempted to help solve this problem by building a vibrating distance sensor that is intuitive to use. The main circuit i...

  • Hackaday Prize Entry: Circular Knitting Machines | Hackaday

    hackaday.com 30 Jun '15, 5am

    Deep in the recesses of a few enterprising hackerspaces, you’ll find old electronic knitting machines modified for use with modern computers. They’re cool, and you can knit colorful designs, but all of these machines are ultimately based on old equipment, and you’ll have a hard time b...