hackaday.com Archives - 30 July 2014, Wednesday

  • A Cheap DIY Smoke Detector that Can Save Lives

    A Cheap DIY Smoke Detector that Can Save Lives

    hackaday.com 30 Jul '14, 2am

    A faulty wire, a discarded burning cigarette, or a left-on curling iron can trigger sparks of fire to engulf everything nearby until all that’s left is brittle mounds of smoldering ash. Which is why smoke detectors are so important. They are life saving devices that can wake people up...

  • Teaching the Word Clock Some New Tricks

    Teaching the Word Clock Some New Tricks

    hackaday.com 29 Jul '14, 8pm

    [Joakim] has built a clock that spells out the time in words . Wait a second – word clock, what is this, 2009 ? Word clocks are one of those projects that have become timeless. When we see a build that stands out, we make sure to write it up. [Joakim's] clock is special for a number o...

  • THP Entry: Tinusaur AVR Platform Teaches Noobs, Plays Game of Life

    THP Entry: Tinusaur AVR Platform Teaches Noobs, Plays Game of Life

    hackaday.com 29 Jul '14, 5pm

    [Neven] is selling boards and kits through the Tinusaur site , or you can get the board from a few 3rd party vendors. His site has some projects and useful guides for assembling and driving your Tinusaur. He recently programmed it to play Conway’s Game of Life on an 8×8 LED matrix. If...

  • Retrotechtacular: Designing and Building RCA Televisions

    Retrotechtacular: Designing and Building RCA Televisions

    hackaday.com 29 Jul '14, 2pm

    While it’s almost cliché to say they don’t make things like they used to, this week’s Retrotechtacular offers fairly conclusive proof that, at the very least, they used to put more time and effort into manufacturing consumer electronics. Gather your homemade wisecrackin’ robots and se...

  • 16-Bobbin Rope Braiding Machine Inspired by Surplus Store Find

    16-Bobbin Rope Braiding Machine Inspired by Surplus Store Find

    hackaday.com 29 Jul '14, 11am

    Used to have a larger-scale one of these in my scout troop that we would take to events and have for little kids to come make rope — fixed-length at the start of construction (you ran twine back and forth and hooked it into the machine, then tied it off, IIRC), not spool-feeding like ...

  • Changing Unipolar Steppers To Bipolar

    Changing Unipolar Steppers To Bipolar

    hackaday.com 29 Jul '14, 8am

    If you’ve been a good little hacker and have been tearing apart old printers like you’re supposed to, you’ve probably run across more than a few stepper motors. These motors come in a variety of flavors, from the four-wire deals you find in 3D printer builds, to motors with five or si...

  • Hijacking Cromecast With The Rickmote Controller

    hackaday.com 29 Jul '14, 5am

    The rickmote, as this horrible device is called, runs on a Raspberry Pi and does a lot of WiFi shennaigans to highjack a Chromecast. First, all the wireless networks within range of the rickmote are deauthenticated. When this happens, Chromecast devices generally freak out and try to ...

  • Clay 3D Printer Keeps It Simple

    Clay 3D Printer Keeps It Simple

    hackaday.com 29 Jul '14, 2am

    Artist [Jonathan] has built a 3D printer specifically for printing in clay . The part count is kept to a minimum and the printer was designed to be made with basic tools and beginner skills. The intent was to not require access to a plastic 3D printer in order to build this printer. A...

  • Building A True Unix Keyboard

    Building A True Unix Keyboard

    hackaday.com 28 Jul '14, 11pm

    compact keyboards that do away with a third of the keys you would usually find on a normal-sized keyboard are all the rage now, but for [jonhiggs], they weren’t good enough. There is a long tradition of Unix shortcuts these compact keyboards don’t pay attention to – CTRL-A being the H...

  • 18-Channel PWM Aquarium Lights Provide Habitat-Like Life for Fish

    18-Channel PWM Aquarium Lights Provide Habitat-Like Life for Fish

    hackaday.com 28 Jul '14, 8pm

    The driver board is his own design, and he etched a huge board to hold all of the components. Everything is driven by an Arduino Mega, which has 16 hardware PWM channels; two short of what he needed. Because of this he had to spend a bit of time figuring out how best to bit-bang the s...

  • The Tree of 40 Fruit

    The Tree of 40 Fruit

    hackaday.com 28 Jul '14, 5pm

    I bought an apple tree from a nursery that was supposed to be three varieties, yellow delicious, gala and fuji. What wasn’t imediately obvious when I bought it is that the different varieties have different heartiness. If you just let it grow then the branches of one variety will use ...

  • Cloning Tektronix Application Modules

    hackaday.com 28 Jul '14, 2pm

    Tektronix’s MSO2000 line of oscilloscopes are great tools, and with the addition of a few ‘application modules’, can do some pretty interesting tasks: decoding serial protocols, embedded protocols like I2C and SPI, and automotive protocols like CAN and LIN. While testing out his MSO20...

  • A Better Google Glass For $60 (This One Folds)

    A Better Google Glass For $60 (This One Folds)

    hackaday.com 28 Jul '14, 11am

    For [Tony]‘s entry for The Hackaday Prize, he’s doing something we’ve all seen before – a head mounted display, connected to a Bluetooth module, displaying information from a smartphone. What we haven’t seen before is a cheap version of this tech, and a version of Google Glass that fo...

  • The Smart Humidor

    The Smart Humidor

    hackaday.com 28 Jul '14, 8am

    The design of [dzzie]‘s smart humidor consists of an Arduino, WiFi shield, LCD + button shield, and most importantly, a DHT22 temperature and humidity sensor. In a bit of thoughtfulness, only the DHT22 is mounted inside the humidor; everything else is in an enclosure mounted outside t...

  • DIY Keyboard Backlighting Takes Forever, Worth It

    DIY Keyboard Backlighting Takes Forever, Worth It

    hackaday.com 28 Jul '14, 5am

    With the electronics “safely” removed, [prodigydoo] set about desoldering every single key switch, then carefully detaching and disassembling the Cherry MX Blues. He then inserted an LED into each switch’s backplate, reassembled them, mounted the keys back on the board, then added som...

  • The RC White House Robot

    The RC White House Robot

    hackaday.com 28 Jul '14, 2am

    This remote controlled, Arduino-based robot was created by a young student named [Quin] who likes to teach electronics classes at hackerspaces. It is an adaptation of this awesome, fast, fully autonomous mini Roomba that has since driven its way into the Presidential building during t...

  • Hackaday Links: July 27, 2014

    hackaday.com 27 Jul '14, 11pm

    Taking apart printers to salvage their motors and rods is a common occurrence in hacker circles, but how about salvaging the electronics ? A lot of printers come with WiFi modules, and these can be repurposed as USB WiFi dongles. Tools required? And old printer, 3.3 V regulator, and a...

  • Original Gameboy Gets Stuffed Full Of Cool Parts

    Original Gameboy Gets Stuffed Full Of Cool Parts

    hackaday.com 27 Jul '14, 8pm

    The brains of the project is a Raspberry Pi running Retropie video game system emulation software which will emulate a bunch of consoles, including the original Gameboy. The video is sent to the LCD screen via the composite video output. The Pi’s headphone jack is connected to a small...

  • An Automated Flappy Bird Player

    An Automated Flappy Bird Player

    hackaday.com 27 Jul '14, 5pm

    Flappy Bird has been ported to just about every system imaginable, including but not limited to the Apple II, Commodores, pretty much every version of the Atari, and serves as a really great demonstration of the TI-99′s graphics capabilities. Porting is one thing, but having a compute...

  • ASTROGUN is like Asteroids on Steroids

    ASTROGUN is like Asteroids on Steroids

    hackaday.com 27 Jul '14, 2pm

    As the Jerusalem mini Makerfaire approached, [Avishay] had to come up with something to build. His final project is something he calls ASTROGUN . The ASTROGUN is a sort of augmented reality game that has the player attempting to blast quickly approaching asteroids before being hit. It...

  • Enjoying The Sunrise Every Single Day

    Enjoying The Sunrise Every Single Day

    hackaday.com 27 Jul '14, 11am

    There’s quite a bit of code that goes into figuring out when the sun will rise each day, but once that’s figured out, all [Andy] has to do is take the camera somewhere pretty, point it East, and record a few days worth of sunrises. When put into a ‘game camera’ enclosure, its rugged e...

  • A Router-Based Dev Board That Isn’t A Router

    A Router-Based Dev Board That Isn’t A Router

    hackaday.com 27 Jul '14, 8am

    Here’s somethi ng that be of interest to anyone looking to hack up a router for their own connected project or IoT implementation: hardware based on a fairly standard router, loaded up with OpenWRT, with a ton of I/O to connect to anything. It’s called the DPT Board, and it’s basicall...

  • Ever wondered how the accelerometers in your smart phone work ? They work like this:

    The Engineer Guy explains how MEMS accelerometer chips work

    hackaday.com 27 Jul '14, 6am

    There’s a good chance that you use a MEMS accelerometer every single day. It’s the small chip that let your smart phone automatically adjust its screen orientation. They’re great chips, and since they’re mass-produced you can add them to your projects for a song (if you can abide the ...

  • Playing DOOM on an ATM

    Playing DOOM on an ATM

    hackaday.com 27 Jul '14, 5am

    It is also mentioned in the video that [Aussie50] was able to get the receipt printer working. It would be interesting to somehow incorporate this into the DOOM game. Imagine receiving a receipt with your high score printed on it. This also gets us thinking about other possibilities o...

  • LED Cube in an Elongated Cube be Jammin’

    LED Cube in an Elongated Cube be Jammin’

    hackaday.com 27 Jul '14, 2am

    Hidden away under one of the protoboards is an Arduino that drives it. A lot of the components were salvaged from the e-waste bin at his University. This includes the 12V AC wall wart he uses to power the device. A bridge rectifier converts to DC, and in addition to powering the LEDs ...

  • Electric Go-Cart Has Arduino Brains

    Electric Go-Cart Has Arduino Brains

    hackaday.com 26 Jul '14, 11pm

    Oh how times have changed. Back in the 30′s the VW Beetle was designed to be cheap, simple and easy for the typical owner to maintain themselves. Nowadays, every aspect of modern cars are controlled by some sort of computer. At least our go-carts are spared from this non-tinkerable el...

  • Control This Pedestrian Walk Signal Online!

    hackaday.com 26 Jul '14, 8pm

    [Jon Bennett] is an electrical engineer who specializes in embedded systems software. He was the first employee of Pebble Technology and the lead developer of the inPulse Smart Watch. He has studied at the University of Waterloo during which he completed several interesting internship...

  • 4-Minutes to Entry

    hackaday.com 26 Jul '14, 5pm

    If you think it’s too much work to write about your projects you’re simply wrong, and I’m going to prove it to you. The first of this set of videos walks though the steps for submitting an official entry … I did it in under 4 minutes. The second clip covers the extra details you need ...

  • Ask Hackaday: Graphene Capacitors On Kickstarter

    Ask Hackaday: Graphene Capacitors On Kickstarter

    hackaday.com 26 Jul '14, 2pm

    Last week, we heard of an interesting Kickstarter that puts a capacitor and charging circuit in the same space as a AA battery. This is usually a very simple endeavour, but this capacitor has the same energy density as an alkaline cell. The chemistry inside this capacitor was initiall...

  • Pwning Timberman with Electronically Simulated Touchscreen Presses

    Pwning Timberman with Electronically Simulated Touchscreen Presses

    hackaday.com 26 Jul '14, 11am

    embedded below you’ll realize there isn’t much strategy involved in this game. But that setup to simulate the touchscreen presses is pretty neat. We’re used to seeing mechanical touchscreen hacks but this one is electronic, using a couple of pads of copper foil tape and some relays to...