hackaday.com Archives - 28 November 2014, Friday

  • Adding a Steady Rest to a Lathe

    Adding a Steady Rest to a Lathe | Hackaday

    hackaday.com 28 Nov '14, 3pm

    A steady rest is a tool for a lathe, enabling a machinist to make deep cuts in long, slender stock, bore out thin pieces of metal, and generally keeps thin stuff straight. Unlike a tool that follows the cutter, a steady rest is firmly attached to the bed of a lathe. [Josh]’s lathe did...

  • A Breakout Board for the ESP8266-03

    A Breakout Board for the ESP8266-03 | Hackaday

    hackaday.com 28 Nov '14, 12pm

    In the last few weeks we have been seeing a lot of ESP8266 based projects. Given this WiFi module is only $3 on Ebay it surely makes sense using it as an Internet of Things (IoT) platform. To facilitate their prototyping stage I designed a breakout board for it . The board shown above...

  • Augmented Reality Pinball

    Augmented Reality Pinball | Hackaday

    hackaday.com 28 Nov '14, 9am

    Pinball machines are fascinating pieces of mechanical and electrical engineering, and now [Yair Moshe] and his students at the Israel Institute of Technology has taken the classic game one step further. Using computer vision and a projector, this group of engineers has created an augm...

  • Analog Instagram | Hackaday

    hackaday.com 28 Nov '14, 6am

    Several decades ago, the all the punks and artsy types had terrible lenses with terrible camera that leaked light everywhere. Film was crap, and thus was born the fascinating world of Lomography , with effects and light leaks unique to individual cameras. Now, everyone has a smartphon...

  • Modular Multicopter Core Flies in Multiple Orientations

    Modular Multicopter Core Flies in Multiple Orientations | Hackaday

    hackaday.com 28 Nov '14, 3am

    [Ioannis Kedros] claims to be rather new to the game of building multi-rotor drones. You’d never know it looking at his latest creation. Yes, we’re talking about the quadcopter seen here, but it’s the core of the machine that’s so interesting. He came up with a PCB hub that allows mul...

  • Jaw-Dropping Atomic Clock Build

    Jaw-Dropping Atomic Clock Build | Hackaday

    hackaday.com 28 Nov '14, 12am

    You could cruise the Internet bazaars for a talking clock but you’ll never find one as awesome as this. Just look at it… even if it didn’t work it would be awesome. [Art] certainly lives up to his username. His Rubidium-standard atomic real-time clock is surely an example of hardware ...

  • Keep Tabs on Passing Jets with Pi and SDR

    Keep Tabs on Passing Jets with Pi and SDR | Hackaday

    hackaday.com 27 Nov '14, 9pm

    Obviously Software Defined Radio is pretty cool. For a lot of hackers you just need the right project to get you into it. Submitted for your approval is just that project. [Simon Aubury] has been using a Raspberry Pi and SDR to record video of planes passing overhead. The components a...

  • Hackerspace Tours: Cambridge Makespace | Hackaday

    hackaday.com 27 Nov '14, 6pm

    There is a separate machining room which has a large format CNC, Warco mill, lathe, and the usual wood working tools. Each piece of equipment in the space has a tool class and owners. Tool class red means high risk (to members or the equipment) and a member needs to be trained before ...

  • Improving the T-962 Reflow Oven

    Improving the T-962 Reflow Oven | Hackaday

    hackaday.com 27 Nov '14, 3pm

    The T-962A is a very popular reflow oven available through the usual kinda-shady retail channels. It’s pretty cheap, and therefore popular, and the construction actually isn’t abysmal. The controller for this oven is downright terrible, and [wj] has been working on a replacement firmw...

  • HDMI Out With A Brick Game Boy | Hackaday

    hackaday.com 27 Nov '14, 12pm

    A few years ago, some vastly clever people figured out how to listen in on the LCD display on the classic brick Game Boy from 1989. There have been marked improvements over the years, including a few people developing VGA out for the classic Game Boy. Now, the bar has been raised with...

  • Darth Vader Magic 8 Ball

    Darth Vader Magic 8 Ball | Hackaday

    hackaday.com 27 Nov '14, 9am

    Imagine that your wife likes Darth Vader and wants help making important life choices. (Who doesn’t?) [bithead942] solves both problems in one project by gutting a Lego clock and making a talking animatronic Darth Vader 8-Ball-style oracle . Now his wife can simply press Darth’s head ...

  • A 16-voice Homebrew Polyphonic Synth

    A 16-voice Homebrew Polyphonic Synth | Hackaday

    hackaday.com 27 Nov '14, 6am

    Homebrew synths – generating a waveform in a microcontroller, adding a MIDI interface, and sending everything out to a speaker – are great projects that will teach you a ton about how much you can do with a tiny, low power uC. [Mark] created what is probably the most powerful homebrew...

  • Custom Raspberry Pi Thermostat Controller

    Custom Raspberry Pi Thermostat Controller | Hackaday

    hackaday.com 27 Nov '14, 3am

    Thermostats can be a pain. They often only look at one sensor in a multi-room home and then set the temperature based on that. The result is one room that’s comfortable and other rooms that are not. Plus, you generally have to get up off the couch to change the temperature. In this da...

  • Anthropomorphizing Microprocessors | Hackaday

    hackaday.com 27 Nov '14, 12am

    Vintage microprocessors usually do something, be it just sitting in an idle loop, calculating something, or simply looking cool in a collector’s cabinet. [Lee] has come up with a vastly cooler use for an old microprocessor: he’s anthropomorphized it by wiring LEDs up to the address li...

  • An Engineer’s Guide to Cooking the Perfect Turkey | Hackaday

    hackaday.com 26 Nov '14, 9pm

    It’s almost that special time of year again where we all get together and use our families as guinea pigs for new cooking techniques and untested recipes! Some of us are seasoned pros at preparing the big bird of tradition, while others are still experimenting year after year with hop...

  • Scope Noob: Probing Alternating Current | Hackaday

    hackaday.com 26 Nov '14, 6pm

    How to measure “mains” signals directly with ab o’scope. DANGER HIGH VOLTAGE PRESENT, ALWAYS COVER EXPOSED WIRING with some type of insolation. Assumptions – 2 channel scope (minimum) with input range higher than high voltage to be measured. Same for scope probes, must be capable of h...

  • Easy and Effective Way to Measure PWM… Without a Scope! | Hackaday

    hackaday.com 26 Nov '14, 3pm

    Sometimes when a project is coming together, you need to cobble a tool together to get it completed. Whether it’s something very involved, like building a 3D printer to fabricate custom parts, or something relatively simple, like wiring a lightbulb and a battery together to create a s...

  • Telepresence Robot Demo Unit Breaks Free of It’s Confinement

    Telepresence Robot Demo Unit Breaks Free of It’s Confinement | Hackaday

    hackaday.com 26 Nov '14, 12pm

    What happens when you put a telepresence robot online for the world to try out for free? Hilarity of course. Double Robotics is a company that builds telepresence robots. The particular robot in question is kind of like a miniature Segway with a tablet computer on top. The idea is you...

  • Turkey Sous Vide

    Turkey Sous Vide | Hackaday

    hackaday.com 26 Nov '14, 9am

    It’s time once again for Americans to gorge themselves on hormone-laced meats covered in several sauces and gravies, all of which inexplicably contain corn syrup. It’s also Thanksgiving this Thursday, so there’s that, too. If you have a turkey defrosting somewhere, you’ve probably gon...

  • Simple Terminal Hack is Fit For Hollywood

    Simple Terminal Hack is Fit For Hollywood | Hackaday

    hackaday.com 26 Nov '14, 6am

    We’ve all seen the cheesy hacker scenes in movies and on TV. Three dimensional file system browsers, computer chip cityscapes, and other ridiculous visualizations to make the dull act of sitting at a keyboard look pretty on the silver screen. While real hackers know those things are o...

  • Open Sourcing Satellite Telemetry

    Open Sourcing Satellite Telemetry | Hackaday

    hackaday.com 26 Nov '14, 3am

    Launched in 1978, the International Sun/Earth Explorer 3 was sent on a mission to explore the Earth’s interaction with the sun. Several years later, the spacecraft changed its name to the International Cometary Explorer, sent off to explore orbiting ice balls, and return to Earth earl...

  • Ray tracing on an Arduino

    Ray tracing on an Arduino | Hackaday

    hackaday.com 26 Nov '14, 12am

    [Greg] implemented a simple ray tracer for Arduino as a fun exercise and a way to benchmark the processor. He started out with the Moller-Trumbore algorithm, a common ray-tracing algorithm that calculates the intersection of a ray with a triangular plane without doing any pre-calculat...

  • Retrotechtacular: The Construction of Wooden Propellers

    Retrotechtacular: The Construction of Wooden Propellers | Hackaday

    hackaday.com 25 Nov '14, 9pm

    During World War I, the United States felt they were lagging behind Europe in terms of airplane technology. Not to be outdone, Congress created the National Advisory Committee for Aeronautics [NACA]. They needed to have some very large propellers built for wind tunnel testing. Well, t...

  • Announcing The Trinket Everyday Carry Contest

    Announcing The Trinket Everyday Carry Contest | Hackaday

    hackaday.com 25 Nov '14, 6pm

    Now that we’ve recovered from our Munich party and the awarding of The Hackaday Prize, we’re ready to announce our latest contest. We’ve been having a lot of fun with our Trinket Pro boards, both the 10th anniversary edition and the new Hackaday.io branded models . While we were solde...

  • Hackaday Interview: [Grant Imahara]

    Hackaday Interview: [Grant Imahara] | Hackaday

    hackaday.com 25 Nov '14, 3pm

    We had a chance to interview [Grant Imahara ] at the 2014 Electronica conference in Munich, Germany. If you don’t recognize [Grant’s] name you’ll probably recognize his face. He’s been on the cast of the television show Mythbusters for about 10 years now. We heard recently that he was...

  • Better SPI Bus Design

    Better SPI Bus Design | Hackaday

    hackaday.com 25 Nov '14, 12pm

    Quick, how do you wire up an SPI bus between a microcontroller and a peripheral? SCK goes to SCK, MISO goes to MISO, and MOSI goes to MOSI, right? Yeah. You’ll need to throw in a chip select pin, but that’s pretty much it. Just wires, and it’ll most likely work. Now add a second devic...

  • Enhanced Coffee Brewer Knows How Much of a Caffeine Addict You Are

    Enhanced Coffee Brewer Knows How Much of a Caffeine Addict You Are | Hackaday

    hackaday.com 25 Nov '14, 9am

    Who should chip in the most to restock the community coffee supply at work is a common point of contention at some offices. This RFID infused coffee brewer called Juraduino by [Oliver Krohn] solves the issue at his workplace once and for all by logging how much is being consumed by ea...

  • A UV Lightbox For Curing Prints

    A UV Lightbox For Curing Prints | Hackaday

    hackaday.com 25 Nov '14, 6am

    With resin printers slowly making their way to hackerspaces and garages the world over, there is a growing need for a place to cure these UV resin prints. No, they don’t come out of the machine fully cured, they come out fully solid. And no, we’re not just leaving them in the sun, bec...

  • Hacking the Crayola Digital Light Designer

    Hacking the Crayola Digital Light Designer | Hackaday

    hackaday.com 25 Nov '14, 3am

    [Harry] wrote in with his hack of the Crayola Light Designer . The Light Designer is a pretty unique toy that lets kids write on a cone-shaped POV display with an infrared light pen. [Harry] cracked one open and discovered it has a spinning assembly with a strip of 32 RGB LEDs for the...

  • Chicken-powered Pendulum

    Chicken-powered Pendulum | Hackaday

    hackaday.com 25 Nov '14, 12am

    Every once in a while we get sent a link that’s so cute that we just have to post it. For instance: this video from [Ludic Science]. It’s a wind-up chicken toy that kicks a pendulum back and forth. No more, no less. But before you start screaming “NOT A HACK!” in the comments below, t...