hackaday.com Archives - 22 February 2013, Friday

  • NFC tags control your home’s lighting

    NFC tags control your home’s lighting

    hackaday.com 22 Feb '13, 11pm

    a home lighting hack that doesn’t require you to think about it after the initial setup. Instead of requiring the user to launch an app and select a lighting state, it uses NFC tags to select a lighting configuration. The tags can be placed in different parts of the house so that sett...

  • A Bitcoin mining example for the BeagleBone with an FPGA shield

    A Bitcoin mining example for the BeagleBone with an FPGA shield

    hackaday.com 22 Feb '13, 9pm

    If you’ve got a BeagleBone and an FPGA board you should give this Bitcoin mining rig a try . The hardware uses brute-force to solve hashes, looking for the rare sets that can be used as digital currency. This particular example is designed for the LOGi-bone which is an FPGA shield for...

  • Door hidden by bookcase is a marvel of DIY engineering

    Door hidden by bookcase is a marvel of DIY engineering

    hackaday.com 22 Feb '13, 7pm

    Possibly the most important part of the build is figuring out how to hinge all the weight a bookcase will carry. His solution was to use a set of four heavy-duty casters. He cut off the wheels from one pair and the mounting brackets from another. By welding the brackets on in place of...

  • Panelizing PCBs in Eagle

    hackaday.com 22 Feb '13, 5pm

    A lot of the board houses out there including Seeed and ITead studios have a fixed size for circuit boards before the price goes up. A one-inch square board costs the same as a much larger 5cm x 5cm board, making panelized PCBs a great way to get more boards for the same amount of mon...

  • Hackaday Links: February 22, 2013

    Hackaday Links: February 22, 2013

    hackaday.com 22 Feb '13, 3pm

    Yeah, it’s another home made Raspberry Pi case, but [Gabriel]‘s Mini Playstation 3.14 is the bee’s knees. The enclosure was once a metal gift box originally intended for gift cards. With a few whacks of a Dremel, the world finally has a new PS3 that runs Linux. Up there with The Secre...

  • Build your own dumb USB power strip

    Build your own dumb USB power strip

    hackaday.com 22 Feb '13, 1pm

    The jack on the side accepts the barrel connector from a 12V wall wart. [Kenneth] mentions that the 2.1mm jack is a standard he uses in all of his projects. Inside there’s a switch mode power supply that provides the regulated 5V to each USB port. We really like the fact that he added...

  • Arduino-controlled MIDI sequencer

    Arduino-controlled MIDI sequencer

    hackaday.com 22 Feb '13, 11am

    [Christian] wrote in to tell us about his third-generation Arduino MIDI sequencer (translated ) called the AM808 VX3. He had already laid a strong base for the project in his previous versions. But the user interface was still frustrating at times and that’s where this version comes i...

  • LED marquee uses discrete through-hole lights

    LED marquee uses discrete through-hole lights

    hackaday.com 22 Feb '13, 2am

    [Michael] built his own LED marquee using individual diodes . Despite his choice to forego the 8×8 or 5×7 modules we often see in these projects, his decision to spin a dedicated PCB saved him a lot of trouble during assembly. Sure, he still had to solder 180 leads on the 9×18 grid of...

  • Self-waking computer for DIY cloud storage

    Self-waking computer for DIY cloud storage

    hackaday.com 22 Feb '13, 12am

    Obviously this is a Wake-On-Lan type of situation, but the hardware he has chosen to use doesn’t include those features. Since he already had this TP-Link 703n on hand he decided to use it as a controller for the computer. His method is quite clever. The router is running a script tha...

  • Laser Spirograph

    Laser Spirograph

    hackaday.com 21 Feb '13, 10pm

    Here’s a weekend junk bin project if we’ve ever seen one. [Pat] used a quartet of computer fans to make his laser Spirograph . Deciding to try this simple build for yourself will run you through a lot of basics when it comes to interfacing hardware with a microcontroller. In this case...

  • Bit banging through a USB parallel port adapter

    Bit banging through a USB parallel port adapter

    hackaday.com 21 Feb '13, 8pm

    Sure, adding a microcontroller would make this dead simple. All you need to do is program the chip to emulate the printer’s end of the communications scheme. But that’s not the approach taken here. Instead the USB to RS232 (serial) converter also pictured above is used as a reset sign...

  • Framing up your electronics projects

    Framing up your electronics projects

    hackaday.com 21 Feb '13, 6pm

    The project seen here is a temperature data logger. The frosted diffuser covering everything but the LCD screen and gives you a glimpse of what’s mounted to the back panel. He connected the four different protoboard components, along with a battery pack, to each other use right angle ...

  • Retro gaming just in-case

    Retro gaming just in-case

    hackaday.com 21 Feb '13, 4pm

    You can look and look, but you won’t find a Super Nintendo inside of this retro gaming rig. [Webrow] is giving his vintage hardware a rest, and taking this all-in-one game emulator suitcase wherever he goes. The machine at the heart of his build is of course a Raspberry Pi. You really...

  • Swiss Army Keys

    Swiss Army Keys

    hackaday.com 21 Feb '13, 2pm

    This isn’t a hack that shows you how to start a car without the keys. It’s a way to ditch the bulky keyring for a set of fold-out keys . [Colonel Crunch] removed the blades from the pocket knife and replaced them with the two keys for his car (one is ignition and door locks, the other...

  • Making Eagle work with circuits.io

    hackaday.com 21 Feb '13, 11am

    Ever so slowly, we’re inching towards a world of Internet-based electronic design tools. The state of these tools, including Upverter and other cloud-based solutions, hasn’t been all that great until now; with any new piece of schematic capture and PCB layout software, the libraries w...

  • Pair of musical hacks use sensor arrays as keyboards

    Pair of musical hacks use sensor arrays as keyboards

    hackaday.com 20 Feb '13, 11pm

    This pair of musical keyboard hacks both use light to detect inputs. The pair of tips came in on the same day, which sparks talk of consipiracy theory here at Hackaday. Something in the weather must influence what types of projects people take on because we frequently see trends like ...

  • RF switching module can learn new remotes: This breadboarded circuit is [Sergio's] solution to controlling appl...

    RF switching module can learn new remotes

    hackaday.com 20 Feb '13, 9pm

    The main components include the solid state relay at the bottom of the image. This lets the ATtiny13 switch mains voltage appliances. The microcontroller (on the copper clad square at the center of the breadboard) interfaces with the green radio frequency board to its left. On the rig...

  • 3d printer filament made of wood

    hackaday.com 20 Feb '13, 7pm

    Believe it or not, you can now squeeze wood through the nozzle of your 3D printer . This new addition to the maker’s palette of 3D printer filaments comes from the mind of [Kai Parthy]. The new filament – going by the name Laywood – is a mix of recycled wood fibers and polymer binders...

  • Freezing Android to crack the encryption

    Freezing Android to crack the encryption

    hackaday.com 20 Feb '13, 7pm

    . They leverage use of low temperatures to slow down the RAM in a device. In this case, the target phone must already be powered on. Booting a phone that uses the encryption offered by Android 4.0 and newer requires the owner’s pass code to decrypt the user partition. But it then rema...

  • A brick-sized Game Boy Advance SP

    A brick-sized Game Boy Advance SP

    hackaday.com 20 Feb '13, 5pm

    For a few years now, [Michael] has wanted to put the guts of a Game Boy Advance – the small clamshell version with a backlit LCD – into the classic and comfortable DMG-01 ‘brick’ Game Boy. He’s finally finished with his project , and we’ve got to say it’s looking pretty good. The buil...

  • Video phone Arduino shield

    Video phone Arduino shield

    hackaday.com 20 Feb '13, 3pm

    We’ve seen Arduino-powered Twitter machines, and even some that can send text messages, but how about one that’s a video phone ? That’s what the guys over at Cooking Hacks put together with their very impressive 3G Arduino shield . On board the shield is an internal GPS receiver, micr...

  • The perils of buying a stereo microscope without a stand

    hackaday.com 20 Feb '13, 1pm

    First off… nice work! I really need to get a similar set-up, but I’ve been too busy with other projects to follow up on that need. This gives me something to think about. Second… if attempting to powder coat aluminum, there are a few things to take into account to get the best finish....

  • 3Doodler, a 3D drawing pen

    hackaday.com 20 Feb '13, 11am

    Here’s something that’s making its way to the top of our, “why didn’t we think of that” list. It’s called 3Doodler , a device based on the plastic extrusion technology found in 3D printers stuffed into a pen that fits in the palm of your hand. If you’re familiar with 3D printers, the ...

  • Solar clock uses capacitors for style and function

    Solar clock uses capacitors for style and function

    hackaday.com 20 Feb '13, 3am

    The machine translation makes it a bit rough to understand how this works, but the schematic helps quite a bit. The pair of solar cells, which were pulled from some cheap solar cellphone chargers, feed the bank of capacitors encircling the clock face. If placed in a room that gets ple...

  • Hacked auxiliary port for a car stereo

    Hacked auxiliary port for a car stereo

    hackaday.com 20 Feb '13, 1am

    The connector on the back of his head unit is a 2×4 set of pins recessed in a protective plastic ring. It turns out that the audio connector cable for a PC CD-ROM drive has a 1×4 socket that is perfect for this. [Apachem25] simply clipped one of those cables in half and used both ends...

  • Diamond Ore wall lamp brings Minecraft into your home

    Diamond Ore wall lamp brings Minecraft into your home

    hackaday.com 19 Feb '13, 11pm

    We were surprised to see all of the Christmas gifts that revolved around Minecraft. Seems like there’s a lot of stuff for sale, but we still like the DIY spirit that comes with making your own. [Thacrudd] recently finished this project. It’s a wall lamp that looks like Minecraft’s dia...

  • Rusty old table saw turned into a workstation worthy of a master craftsman

    Rusty old table saw turned into a workstation worthy of a master craftsman

    hackaday.com 19 Feb '13, 9pm

    [Simon Leblanc] started with a Delta contractor’s saw that was rusty inside and out. The refurbishment began by removing the table and everything from the inside. The rods and gears were all cleaned up before he began to sand away the rust on the table itself. But obviously he didn’t ...

  • LEGO stylus solves Ruzzle tablet game

    LEGO stylus solves Ruzzle tablet game

    hackaday.com 19 Feb '13, 7pm

    His post gives a general overview of how this works. A Linux box takes a screenshot of the Ruzzle board. After processing the graphics with Imagemagick he uses Tesseract — an Optical Character Recognition program — to figure out which letter is on each square of the playing area. From...

  • Impressive dev boards for your STM32 dev boards

    hackaday.com 19 Feb '13, 5pm

    It seems there are a lot of people who have the same complaint about the STM32 Discovery boards; it can be difficult to add external hardware to them. Don’t get us wrong, we appreciate all of the pins being broken out (as opposed to the Stellaris Launchpad which we think has too few a...

  • OpenSCAD is for use with 2D machine, not just 3D printing

    OpenSCAD is for use with 2D machine, not just 3D printing

    hackaday.com 19 Feb '13, 3pm

    designed with OpenSCAD and cut out on a CNC router . [Matthew Venn] wrote about the project because he sees tons of 3D printing hacks that use the software, but almost never hears about it as a tool for laser cutting or CNC router/mill work. When we read that we thought we must have s...