hackaday.com Archives - 03 September 2014, Wednesday

  • Arduino-Powered Alarm System Has All The Bells And Whistles

    Arduino-Powered Alarm System Has All The Bells And Whistles

    hackaday.com 03 Sep '14, 5am

    Put aside all of the projects that use an Arduino to blink a few LEDs or drive one servo motor. [IngGaro]‘s latest project uses the full range of features available in this versatile microcontroller and has turned an Arduino Mega into a fully-functional home alarm system . The alarm c...

  • GPS Tracker Tracks Your Stolen Bike

    GPS Tracker Tracks Your Stolen Bike

    hackaday.com 02 Sep '14, 11pm

    Bikes are great for cruising through congested cities but there is a serious downside to pedaling your two-wheeler around… bike theft. It’s a big deal, for example, yearly estimates for stolen bikes in NYC are in the 60,000 – 100,000 range. Only an extremely small percentage of those ...

  • THP Semifinalist: Autonomous Recharging For Multirotors

    hackaday.com 02 Sep '14, 8pm

    Hi this is my project, thanks for the thoughts. Firstly I would like to clarify I do not mention using a GPS on the landing pad as my solution ,but it is one way you could gather the GPS coordinates of the landing pad. You can try to land using the known GPS location of the landing pa...

  • Rigging Your 3D Models In The Real-World

    Rigging your 3D Models in the Real-World

    hackaday.com 02 Sep '14, 5pm

    [Alec] and his team’s unique alternative is a system of interchangeable, 3D-printed mechanical pieces used to drive an on-screen character. The effect is that of digital puppetry, but with an eye toward precision. Their device consists of a central controller, joints, splitters, exten...

  • Commodore C364 Talking home computer Part II

    hackaday.com 02 Sep '14, 2pm

    …to even mention “Atari” in a Commodore historical piece is either really brave – or very stupid! (but as an Atari user this is perhaps not obvious… :p ) The best Atari I’ve ever owned was a 1040st – which was my door-mat for quite some time – until a couple of Amiga buddies decided t...

  • Developed On Hackaday: Chrome/Firefox Apps/Extensions Developers Needed

    Developed On Hackaday: Chrome/Firefox Apps/Extensions Developers Needed

    hackaday.com 02 Sep '14, 11am

    Our beta testers are now using their prototypes daily and their feedback allowed us to considerably improve the Mooltipass. The firmware development is coming to an end as most functionalities have been implemented in the last few weeks. The development team is therefore turning his a...

  • Extrinsic Motivation: P = NP If You Have A Time Machine

    Extrinsic Motivation: P = NP If You Have A Time Machine

    hackaday.com 02 Sep '14, 8am

    Assuming the events portrayed in BTTF could be real in some alternate history or universe, consider the properties of a DeLorean time machine: It requires 1.21 Jiggawatts (we’re assuming this is Gigawatts from now on), has a curb weight of about three thousand pounds with the nuclear ...

  • Gaining Access to the Oculus Developer Database

    Gaining Access to the Oculus Developer Database

    hackaday.com 02 Sep '14, 5am

    The process started by using a SQL injector called BSQLi to test out parameters, cookies, and headers. Injecting into the header revealed that the Oculus team members were inserting X-Forwarded-For headers directly into the database without proper escape formatting. This got him in th...

  • Homemade Activity Monitor

    Homemade Activity Monitor

    hackaday.com 02 Sep '14, 2am

    A group of developers have uploaded a tutorial on Instructables showing the steps needed to develop a homemade DIY fitness tracker . The design is the second iteration of an Arduino-based wearable smart watch project of theirs. This time around, they opted to focus more on the monitor...

  • Update: 3D Printed Concrete Castle Completed

    Update: 3D Printed Concrete Castle Completed

    hackaday.com 01 Sep '14, 11pm

    There are no action shots of the printer setup as it lays down fat beads of concrete, only close-ups of the nozzle, but the castle was printed on-site outdoors. It wasn’t, however, printed in one piece. [Andrey] churned out the turrets separately and attached them later. He won’t be d...

  • THP Semifinalist: The Medicycle

    THP Semifinalist: The Medicycle

    hackaday.com 01 Sep '14, 8pm

    Despite a seeming lack of transportation projects for The Hackaday Prize, there are a few that made it through the great culling and into the semifinalist round. [Nick], [XenonJohn], and [DaveW]‘s project is the Medicycle . It’s a vehicle that will turn heads for sure, but the guys ha...

  • Hydropower from a Washing Mashine

    Hydropower from a Washing Mashine

    hackaday.com 01 Sep '14, 5pm

    i assume that the rewire (though i didnt follow the link) means putting some of the coils that are in series, in parallell instead. that is probably needed in order to not excceed maximum voltage on the semiconductors following (bridge rectifier, charge controller…), though one ought ...

  • Extrinsic Motivation: Smart Antenna Tracker for R/C Aircraft

    Extrinsic Motivation: Smart Antenna Tracker for R/C Aircraft

    hackaday.com 01 Sep '14, 2pm

    Long distance FPV (First Person View) flying can be a handful. Keeping a video feed alive generally requires a high gain directional antenna. Going directional creates the chore of keeping the antenna pointed at the aircraft. [Brandon's] smart antenna tracker is designed to do all tha...

  • A Peach of a Homemade Parts Tumbler

    A Peach of a Homemade Parts Tumbler

    hackaday.com 01 Sep '14, 11am

    Simply put, he drilled a hole in bottom of the peach vessel and then stuck a threaded rod through it. He held the rod in place with a nut and a washer. After securing the proper permits to source sand and water from his property, he put both in the jar along with some old nails that h...

  • Hackaday Retro Edition: 386 Compaqs

    Hackaday Retro Edition: 386 Compaqs

    hackaday.com 01 Sep '14, 8am

    [Antoine] recently learned of a little challenge we have in the hinterlands of the Hackaday webosphere – what’s the oldest, or lowest spec hardware you have that can load this our retro edition ? He has a pile of old PCs at his work, and with a lot of idle time at work because of summ...

  • Arduino-based LED Wedding Lights

    Arduino-based LED Wedding Lights

    hackaday.com 01 Sep '14, 5am

    amazing Bluetooth controlled LED lights for his daughter’s wedding adding a colorful ambient glow to the ceremony. Each item held a Neopixel ring and an Arduino microprocessor with a wireless module that could be individually addressed over a ‘mini-network.’ The main master station wo...

  • Baby’s Room Gets a Palace with this CNC Castle Decoration

    Baby’s Room Gets a Palace with this CNC Castle Decoration

    hackaday.com 01 Sep '14, 2am

    [Vegard] and his wife were expecting a baby girl, and decided to build a castle for their new daughter. As a prototyping geek with his own CNC machine in his apartment, he decided to take to Google Sketchup to design this well-crafted castle decoration for his daughter’s room . The fi...

  • Hackaday Links: August 30, 2014

    hackaday.com 31 Aug '14, 11pm

    Adafruit did another Circuit Playground, this time concerning frequency . If you’re reading this, no , it’s probably not for you, which is great because it’s not meant to be. If you have some kids, though, it’s great. Not-muppet robots and oscilloscopes. Just great. The Hack42 space i...

  • Flying a Drone with an Oculus Rift

    Flying a Drone with an Oculus Rift

    hackaday.com 31 Aug '14, 8pm

    Controlling autonomous vehicles remotely with the use of virtual reality headsets seems like an obvious next step. Already, a few UAV companies have begun experimenting with these types of ideas by integrating Oculus Rift developer kits into their hovering quadcopters and drones. Parr...

  • A Remote Controlled, Fully Functional, Steam Powered Tank

    A Remote Controlled, Fully Functional, Steam Powered Tank

    hackaday.com 31 Aug '14, 5pm

    [Ian] is an electronics design engineer whose hobbies include messing around with steam power. The Steam Turret Tank is based on a 1/16th scale Tamiya King Tiger die-cast model tank. It features a 3.5″ diameter marine boiler from MaccSteam , which is a fully equipped miniature version...

  • Green Light Your Commute with America’s Unsecured Traffic Lights

    Green light your way to an easy commute

    hackaday.com 31 Aug '14, 2pm

    Remember that episode of Leverage (season 5, episode 3), where Alec uses Marvin to wirelessly change all the street lights green so they can catch up to an SUV? And you scoffed and said “that’s so not real!”… well actually they got it right. A new study out of the University of Michig...

  • THP Semifinalist: fNIR Brain Imager

    THP Semifinalist: fNIR Brain Imager

    hackaday.com 31 Aug '14, 11am

    The current research tool du jour in the field of neuroscience and psychology is the fMRI, or functional magnetic resonance imaging. It’s basically the same as the MRI machine found in any well equipped hospital, but with a key difference: it can detect very small variances in the blo...

  • Homemade Triple Monitor Mount Looks Professionally Made

    Homemade Triple Monitor Mount Looks Professionally Made

    hackaday.com 31 Aug '14, 8am

    I can weld, but I made my support arms out of wood anyways. Why use more club for a hole than I need to? I did make the brackets out of steel though. One was really funky, it wasn’t VESA. VESA brackets are easy to make. This was a bit more involved to machine http://www.instructables....

  • Proximity Sensing LEDs Can Add a New Dynamic To Your Projects

    hackaday.com 31 Aug '14, 5am

    Looking for a fun and easy way to add a bit more interaction to your LED-laden projects? Why not turn them into proximity sensing LEDs? Our hacker, [Will], is just getting into designing his own PCBs. He was looking for a simple project to try out that wouldn’t be too hard to design a...

  • WiFi Raspberry Pi Touchscreen Camera

    WiFi Raspberry Pi Touchscreen Camera

    hackaday.com 31 Aug '14, 2am

    The backup system of this Raspberry Pi-enabled device connects wirelessly to the internet and uploads the photos through the use of a Dropbox API. This functionality is great for syncing the camera to a cloud based server which then can be turned into a makeshift picture database for ...

  • Rapid Fire Mod For A Wireless Mouse

    Rapid Fire Mod For A Wireless Mouse

    hackaday.com 30 Aug '14, 11pm

    [Jon] searched around the ‘net but could not find any wireless rapid fire mods. Eventually, he did find a low-voltage variation called the LMC555 and ordered a few for his project. The new wireless mouse was taken apart in order to find out how the mouse buttons work. In this case, th...

  • THP Semifinalist: Retro Populator, A Pick And Place Retrofit For A 3D Printer

    THP Semifinalist: Retro Populator, A Pick And Place Retrofit For A 3D Printer

    hackaday.com 30 Aug '14, 8pm

    A huge theme of The Hackaday Prize entries is making assembly of electronics projects easier. This has come in the form of soldering robots, and of course pick and place machines. One of the best we’ve seen is the Retro Populator , a project by [Eric], [Charles], [Adam], and [Rob], me...

  • Homemade Superhero: [James's] DIY Exoskeleton

    hackaday.com 30 Aug '14, 5pm

    For now, though, the exoskeleton is impressive enough on its own. The build is a combination of custom-cut perforated steel tubing and pneumatic cylinders, attached to a back braces of sorts. In the demonstration video, [James] stares down 170 pounds of cinder block affixed to a barbe...

  • Voices From the Past: Recovering Audio From Wire Recordings

    hackaday.com 30 Aug '14, 2pm

    [Nick]‘s grandfather was quite the old school hacker. In the 1940s, he built his own wire recorder and microphone to capture everything from his children’s Chirstmas wishes to his favorite songs and programs from the radio. Only 20 or so spools have survived and were doomed to silence...

  • Extrinsic Motivation: Off-grid Solar System Monitoring Solution

    Extrinsic Motivation: Off-grid Solar System Monitoring Solution

    hackaday.com 30 Aug '14, 11am

    nice job! the graphs clearly shows what are the downsides of an off-grid pv islands. of course it depends on the local regulation whether one is allowed to feed back juice to the grid. but if you can have an on-grid setup, your spring-summer-fall overproduction can cover the missing e...