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  • Friday, April 4, 2014 - 22:01
    Tube Headphones Rock Out While Keeping the Family Peace

    tubeHeadphones

    It’s hard being a kid sometimes. [Young] likes his music, but his dad is an overnight trucker. With his dad sleeping during the day, [Young] has to keep the volume down to a reasonable level. He could have bought some commercial headphones, but he wanted something a bit more customized. Rather than give up on his tunes, he built a pair of headphones with an internal tube preamp amplifier. [German language link -- Google translate doesn't want to work with this one but Chrome's translate feature works].

    Two 1SH24B preamp tubes feed two LM386 amplifier chips, creating a hybrid amplifier. The 1SH24B tubes are designed to work on battery voltage, so a step up circuit wasn’t necessary. However, [Young] still needed to provide an 8 cell battery pack to run his amp. Speakers were a 3 way coaxial of [Young's] own design. He built the headphone frame using candy tins and cups from commercial headphones. A final touch was a window so everyone can see all that vacuum state goodness.  Considering that [Young] is only 16, we’re looking for some great things from him in the future.

    If you don’t want to strap the tubes to your skull there are other options. But you have to admit it makes for a cool look. Starbucks here we come.

    [Thanks Patrick]

    Filed under: musical hacks, news

  • Friday, April 4, 2014 - 22:00
    Kismet Pi Display #piday #raspberrypi @Raspberry_Pi



    GitHub user ThaWeatherman made this project using our 16×2 LCD kit for Raspberry Pi.

    These scripts display information from a Kismet XML log file during a wardrive on the Adafruit LCD for the Raspberry Pi. The more mobile your wardriving setup the better, so why not use a Pi? Carrying around a monitor with your Pi is not ideal so we can use an LCD to display information about gathered networks during the wardrive.

    The script will start by displaying the total number of networks discovered thus far. By pressing the UP or DOWN buttons you can cycle between the other screens. The LEFT and RIGHT buttons scroll the text on the screen left or right. The other information that is displayed is the total number of networks using WPS, WPA, WEP, or no encryption.

    This code requires that Adafruit’s Raspberry Pi Python Code be installed in your home directory on the Raspberry Pi. It also requires you have Paul McMillan’s kismetclient installed in your home directory. Note that the script assumes your username is pi. If your username isn’t pi go into pi_kismet.py and on lines 2 and 3 change the pi in the strings to your username.

    You will also need the development version of Kismet.

    Read more.


    Featured Adafruit Product!

    NewImage

    Adafruit RGB Positive 16×2 LCD+Keypad Kit for Raspberry Pi: This new Adafruit Pi Plate makes it easy to use an RGB 16×2 Character LCD. We really like the RGB Character LCDs we stock in the shop. (For RGB we have RGB negative and RGB positive.) Unfortunately, these LCDs do require quite a few digital pins, 6 to control the LCD and then another 3 to control the RGB backlight for a total of 9 pins. That’s nearly all the GPIO available on a Pi! Read more.


    998Each Friday is PiDay here at Adafruit! Be sure to check out our posts, tutorials and new Raspberry Pi related products. Adafruit has the largest and best selection of Raspberry Pi accessories and all the code & tutorials to get you up and running in no time!

  • Friday, April 4, 2014 - 21:26
    MakerBot Desktop | The Best Place to Keep Your 3D Models

    MB-Desktop-Education PT3_header

    We’ve already learned how MakerBot Desktop is easy to connect to and create 3D prints with, but it’s also the ideal space to collect, organize, and share your digital models. In this post, we’ll explore the amazing capabilities of the MakerBot Cloud Library, a secure, cloud-enabled system for managing your personal designs and collections of 3D printable files.

    Smart Storage
    Log into MakerBot Desktop with your MakerBot account and check out the Library tab. You’ll see four sections: All Things, Purchased Things, Thingiverse, and My Designs (Private). Let’s take a closer look at what we can use them for.

    All Things
    Just like it sounds. This folder will contain every model you’ve saved from MakerBot Thingiverse, purchased from the MakerBot Digital Store, and personal files you’ve uploaded from your computer.

    Purchased Things
    Every time you purchase content from the MakerBot Digital Store, your files will appear here. We’ve also given you two free Digital Store samples to get you started. They are in the Free Samples folder.

    Thingiverse
    When you are viewing a Thing page, click Collect to save the Thing file(s) to your Library. You’ll have the choice of saving it to the Things to Make folder, or creating a new folder. Any design you publish to Thingiverse will be filed in the My Designs folder.

    Note: A Thing is what you see in the list views in the Library, and can consist of multiple files that you can print or prepare.

    My Designs (Private)
    This is where you can store files you’ve uploaded from your own computer that did not originate from either Thingiverse or the MakerBot Digital Store. Click +New to either add a new Thing or new folder. When you add a new Thing, a dialog box will open allowing you to navigate to your file in order to upload it. Feel free to name it and add a description. You can also add files to your My Designs (Private) folder by adding a model from your computer to the Prepare Screen and then saving it.

    Note: These are designs you’ve chosen to not yet share on Thingiverse. If you decide to share any of them later, MakerBot Desktop makes public copies of them but keeps the private copies in the My Designs (Private) folder.

    MB-Desktop-Education-PT3_secondary-4

    If you’re not sure where a particular Thing is filed, you can always use the keyword search function to find it.

    Once you’ve found the file you’re looking for, click on it for more detailed information, including (if it’s from Thingiverse) the designer’s username, the date it was published, and any other information the designer posted to the Thing page. Once you’ve sliced and saved the file, it will save to the My Layouts folder in this detailed view.

    Part of Your Workflow
    The MakerBot Cloud Library can also be central to your design and discovery process, and can be woven into your workflow in different ways.

    – If you’re just browsing Thingiverse for inspiration, or don’t want to start printing quite yet, collect Things now and they’ll be ready to print for later—all in one place in your Library.

    – Upload your personal files to your Library to keep those projects organized.

    – If you made some changes to a file and saved that layout, go back to that file within the Library and find your personalized layout ready for you to print again.

    That wraps it up for the MakerBot Desktop education series. We hope it’s the beginning of your exploration of this best-in-class software that runs MakerBot products, which are setting the standard in 3D printing and 3D scanning.
    Thanks for joining us. We can’t wait to see what you make!

     

  • Friday, April 4, 2014 - 21:00
    Community Corner: Projects from this Past Week in the Adafruit Community – April 4th, 2014




    Featured Adafruit Community Project

    JayDoscher

    Jay Doscher shared his 18 month project to create a SOLARbot:

    “As a quick introduction, this is a project to build an open-source 2-axis solar tracker, named the Solar Outdoor Lightweight Adjustable Robot, or SOLARbot. The goal is to maximize the efficiency and portability of a single large solar panel to make it portable for use in emergencies, developing countries, or even camping. I’ve listed out several different aspects of the build….”

    (read more)

    There are people making amazing things around the world, are you one of them? Join the 78,196 strong! And check out scores of projects they shared this week after the jump!



    Adafruit’s Weekly Electronics Show and Tell!


    From the Google+ Community

    (Note: Google+ login required.)

    MikeCrosson

    Mike Crosson shared: “Pictured is an Arduino Due, +SparkFun Electronics spectrum shield, +Adafruit Industriess NeoPixels and some EQ output captured while playing one of +Phlash Tha’s sets. The current prototype is a two channel EQ with LCD for UI and a POT for NeoPixel brightness. The plan is to scale up into thousands of NeoPixels and a fully customizable FX system.” (read more)


    DavideCandiloro

    Davide Candiloro shared: “This put my patience at test! 6 Nixie IN-12 soldered in parallel for multiplexing!” (read more)


    Gadsden Merrill Google I cut out a couple of knife blanks yesterday They were

    Gadsden Merrill shared: “I cut out a couple of knife blanks yesterday. They were traced in Autodesk Inventor from some pictures I liked the scaled and tweaked till they seemed functional. Cutting all three of them on the waterjet out of O1 tool steel took less than 5 minutes. Next step is grinding a blade angle, then heat treating! You can see in the photos how I used screws to hold a small piece of material down to some plywood while cutting. You can also see some drag marks on the edge where the water stream tries to catch up to the nozzle. This is pretty normal with a waterjet and I’ll be grinding them off anyway.” (read more)


    Mark Topham

    Mark Topham shared: “Scoreboard Schematic (WIP). This should match my breadboard design for the 10, 7 Segment display. Missing pieces are the connections from the 74hc595 to each other and the Arduino. Connections to the segment displays and the transistors should be accurate…. This was produced with KiCAD which I installed today. Due to the board size I was unable to use the free version of Eagle (as I transition to the PCB design). I’ve found the various PCB/Schematic programs to be someone archaic. They really could use some good UI design to modernize them. This particular design is intended to be a complete circuit (once finished), with a connector (from ICSP) from the Arduino, but otherwise stand-alone, as it will be mounted in the head of the pinball machine. 3 Complete boards will be produced. (read more)


    Arduino LEGO

    sam decoster shared: “total image of my lego arduino buggy now i am waiting for a tcrt5000 to connect on the buggy” (read more)


    william foster shared some hot wheels hacks (read more)


    Alfonso E M Google Weatherproofing an indoor PIR sensor 1 59€

    Alfonso E.M. shares a hack for weatherproofing an indoor PIR sensor with an off-the-shelf IKEA part. (read more)


    Matthew W shared: “I saw an article recently about using a photoresistor as an optical sensor like when someone walks into the room. Thought I’d try it out with a continuous rotation servomotor so it can have a home position.” (read more)


    Community Projects from the Adafruit Blog

    DreamAquarium

    Chad “Chiefson” shared on the Adafruit Forums: “So, I am throwing my hat into the Arduino total tank build, and I will try and document as much of my journey as possible here. I have tinkered around with the Arduino in the past, but have never attempted anything of this complexity. I have zero real world programming experience, but enjoy reading sites like hackaday, lifehacker, and such. What I’m saying here is that my code will look pathetically amateurish and possibly unreadable if viewed by a professional…” (read more)


    Erik Kramer shared his wooden robot project on Let’s Make Robots. Adorable and awesome! “This is w00dBoB, my attempt at creating a BoB the Biped. I was so impressed with all the printed BoBs on LMR, I felt an irresistible urge to add yet another member to the ever growing army of our small cuboid friends :) Since I don’t have access to a 3D printer I decided to craft my tiny friend from balsa wood: great strength to weight ratio, easy to process and (personal opinion) a lovely natural appearance. However, I was not too confident with getting the leg-angles glued strong enough together to hold the head, so I ordered those from a remote printing service, them turning out to be the most expensive part of the entire rig….” (read more)


    MarginallyClever shared an open hardware, open source 3DOF robot arm with AMS2 on the Adafruit Forums: “I had some AMS2 shields lying around when I needed to drive some stepper motors. I thought you might like the results.” (Read more.)


    George Kuetemeyer shared an impressive Adafruit Trellis Geome Midi Sequencer on the Adafruit Forums: “Midi music eight step sequencer demo for Adafruit Trellis keypad. Driven by Arduino Uno. Button data sent to Midi Shield. Midi data sent to Yamaha Midi sound module. Top six rows used for entering note data. Up to 6 notes (pentatonic scale) per step. Bottom row enables random octave shifting for given step. Second row buttons enable echo from three notes back from current step. Here is the code for the Geome sequencer. This works pretty well. Not too glitchy. Would really like to be able to handle Trellis within an interrupt handler. That way it would be easier to implement midi clock signal, etc., as I am doing with some other projects.” (read more)


    Jenny Xing decided to build an IRL version of the addictive mobile game using one of our neopixel rings- very cool! “A team here at @pearlhacks built a real version of circlestop!” (read more)


    Cognitive Anteater Robotics Laboratory shared on the Adafruit Forums a Sharp Infrared Range Sensor: “We built an autonomous RC vehicle using 4 of the Sharp IR sensors and they work great! Thanks Adafruit for such great customer support and quick delivery. Here is the result. The objective was to create a robot that can recognize, track, and follow a specified color object as well as have the ability to avoid obstacles in its way. The Nexus S device connects to the IOIO board via Bluetooth, and uses the smartphone’s camera in conjunction with OpenCV and the external IR sensors to control the vehicle….” (read more)


    Nick Lamprianidis shared with us his Android app that communicates with an Arduino Web Server to control a NeoPixel LED stripArduinoPixel on GitHub: “This project consists of two pieces. The first piece is an Arduino sketch that implements a Web Server and offers an API for controlling a NeoPixel LED Strip. The second piece is an Android app, ArduinoPixel, that connects to the Arduino Web Server and sends commands to control the color and the on/off state of the LED strip. The Arduino sketch is also available at codebender. You can clone the project, update the controller and network parameters, and upload it straight to your Arduino Ethernet, or any other Arduino compatible board w/ an Ethernet Shield. The Android application is available on Google Play. Install the app to your phone or tablet, configure the network parameters you set earlier in the Arduino sketch, and you are ready to go. You can watch a demo on YouTube.” (read more)


    Maddox

    Maddox” on the Adfruit Forums shared Beaglebone Black SPI with Microchip 25LC512: “As a learning experience, I got a little microchip flash chip (25LC512) working with my BBB. I thought the steps I went through and performance observed could be useful to others, so I wrote a blog post about the details here with links to the git repo for code and performance traces from my Saleae logic analyzer (wonderful tool).” (read more)


    Sparkleskirtsciencefair

    Nice Flora Sparkle Skirt, Natalie Brown! (read more)


    MakersInCanada

    Makers in Canada recently tried their hands at e-textiles at UnLondon’s UnLab. The project of the day was to create an LED cuff using fun fabrics like paisley felt (yes, there is such a thing!) and fake fur. Led by Leslie Birch, makers learned about conductive thread, blinking LEDs and sewable battery holders, using our Beginner LED Sewing Kit. They also were introduced to the idea of microcontrollers like FLORA, for controlling LEDs and sensors for soft circuit projects. The class was a mix of ages and backgrounds, including library sci, sewing, electronics, fashion design, jewelry and even toy making. For some, it was the first time touching electronics, but once LEDs started to glow, everyone was excited. (read more)


    Adafruit Google+ Community Footer

    Community Corner! Sharing and celebrating the creative community: Show and tell, Ask an Engineer, mailbag, Twitter, Google+, Facebook, “Makers, hackers, artists & engineers. Sharing, learning and celebrating making!

  • Friday, April 4, 2014 - 21:00
    A toaster re-vamped to DJ your kitchen @Raspberry_Pi #piday #raspberrypi


    Screen Shot 2014 04 01 at 12 18 20 PM

    This toaster can’t make you breakfast but it will fill your world with song. Using a Raspberry Pi and a motion sensor, this maker cued his toaster to play music and flash LEDS when someone walks (or dances!) by, from jezra.

    Solitude is my muse, and taking things apart keeps me from getting depressed. However, it is still nice to hear other people say nice things so I decided to convert a toaster into an interactive art project that says nice things when something (usually me) walks in front of it.

    THE BUILD

    Take it apart!

    The first step to any great project seems to begin with a bit of destruction. Good. Nothing really clears my mind like taking something apart. Yea, I laughed when I bought the toaster and I’m still laughing now.

    The toaster was soon gutted and a bunch of innards where chucked in the waste bin.

    Make some mounting thingies

    For this build, I planned on using the Raspberry Pi from the NaNoBox and since someone is a hobby hardware hacker hater, there are no mounting holes on my Raspberry Pi. sigh. Who’s a liar? ME (sort of). I said I wouldn’t use the Raspberry Pi for a similar project. Fortunately, this project isn’t too similar.

    A small wooden block was epoxied to the toast box (at least that is my name for it). Similarly, a piece of thick plastic from VHS case was also epoxied to the toast box.

    Circuit from the shell

    Surrounding the toast box is the toaster shell, and this is the circuit board that was mounted inside of the toaster shell. On the circuit are 3 buttons and two LEDs.

    After a bit of scratching at the circuit board and some soldering, the buttons and LEDs where ready to be wired up.

    Circuit back in the shell

    Oh man, look at that rat’s nest of wires.

    This is the inside of the shell with most of the wiring finished. This includes the PIR thingy. What’s a PIR thingy you might ask? good question.

    PIR thingy

    Hey look, kids, it’s a PIR thingy! This Passive InfraRed sensor thingy was purchased at https://www.adafruit.com/products/189 for 10 bucks.

    A notch was cut in the toaster’s lever channel and the PIR was hot glued into place. Damn, I love adhesives.

    Sound!

    My buddy gave me a small USB amplifier and speaker combo used for plugging into a mobile phone.

    In my haste, I obliterated the amplifier before taking a pictures. What a shame. The wires on the amp were to frail for my needs so I soldered on some heavier wires for audio in, audio out, and the power connector. Since the amp was originally powered over USB I figured I could wire it to the 5v pin on the Raspberry Pi. The speaker is from another portable amplifier…

    Screen Shot 2014 04 01 at 12 18 00 PM

    Read more.

  • Friday, April 4, 2014 - 20:47
    Maker Pro Newsletter – 04/03/14

    speedline“Prototyping is solved.” From the editors of MAKE magazine, the Maker Pro Newsletter is about the impact of makers on business and technology. Our coverage includes hardware startups, new products, incubators, and innovators, along with technology and market trends. Please send items to us at makerpro@makermedia.com. Click here to subscribe […]

    Read more on MAKE


  • Friday, April 4, 2014 - 20:40
    New Project: Glow Bike

    Glow_BIke_2_jbrUse EL wire to make your bike a sight at night.

    Read more on MAKE


  • Friday, April 4, 2014 - 20:00
    Plant Pi: An Open Source Plant Environment Sensor #raspberrypi #piday @raspberry_pi


    NewImage

    Jake Malley, Gabriel Barnes, and Alex Osborne are year 11 students at Frome College and they’ve made this great plant monitor using Raspberry Pi! Check out their website here for details on the full build.

    What is it?

    The Plant Pi allows users to monitor their plants environment over a web server using the Raspberry Pi and ATMEGA328P-PU micro controller connected via a RF24 transceiver.

    The Pi creates its own WiFi network where WiFi enabled devices can connect to view the sensors, all you have to do is apply power.

    But how does it work?

    We have the ATMEGA328P-PU collecting the temperature, humidity, light intensity, rain intensity and soil moisture of a plant’s environment. This data is then sent using the RF24 transceiver to the Raspberry Pi. It is then received through a C++ script, sent to a Python script, then to a My SQL database and then into the PHP script to be displayed on the webpage.

    Our idea is to help get everyone involved in gardening to help our environment. People find it hard to look after plants, having to water them knowing when, how much, where to put them. And we’re all just so busy!

    So what our project allows you to do is to monitor your plant and its environment from anywhere around the world, you just need to connected to the internet. You could be in a cafe, or sitting at your desk at work and you would have a live update of how your plants are doing and if say it needed a little watering well you could just press a button and hey presto!

    Read more.


    998Each Friday is PiDay here at Adafruit! Be sure to check out our posts, tutorials and new Raspberry Pi related products. Adafruit has the largest and best selection of Raspberry Pi accessories and all the code & tutorials to get you up and running in no time!

  • Friday, April 4, 2014 - 19:00
    Steampunked Pi Case #piday #raspberrypi @Raspberry_Pi


    NewImage

    Steampunked Raspberry Pi Case vvia Make

    I needed a nice case for my Pi running Raspbmc, serving as my Media-Center, so I built this case. All media is supplied over network from my Synology NAS (DS409+ with 8TB of storage)

    Read more

  • Friday, April 4, 2014 - 19:00
    We’re At The Vintage Computer Festival This Weekend!

    VCF

    This weekend takes some of the Hackaday crew to the Vintage Computer Festival East in Wall, New Jersey. There’s going to be lots of cool stuff, some dork walking around handing out Hackaday t-shirts and stickers, and more awesome retro computation devices than you can shake several sticks of RAM at.

    On the agenda for Friday are a host of talks that include bootstrapping CP/M, assembly programming, disk imaging, and a talk from our very own [Bil Herd] on how to not kill yourself with a CRT monitor.

    Saturday is when things really heat up with exhibits including a PDP-8, a 1960s UNIVAC, Chromeco Dazzlers, VAXxen, and a whole slew of computers that weigh less than several hundred pounds. There’s even a real Apple I. Seriously. There are also workshops that include some really obscure work from the late, great [Jef Raskin], and more talks, including [Dave Haynie]‘s recollections of Commodore’s circling the drain.

    The VCF is hosted at InfoAge, an exceptionally cool vintage technology treasure trove that’s more than worth the visit, even if there weren’t a vintage computer festival going on this weekend. We caught up with the InfoAge guys a while back, and needless to say, if you come, you’ll have fun.

    If you see somebody walking around with a Hackaday t-shirt on, be sure to tell them you’re a fan. If they don’t know what you’re talking about, ask them who they got the shirt from. Regular updates to follow, including a video of someone loading the Hackaday Retro site with an Intel 4004 microprocessor. I didn’t think that was possible either.

    Oh, watch our Twitter or something. That’s a thing now.

    Filed under: Featured, news

  • Friday, April 4, 2014 - 18:45
    New Project: Spy Tech: Polarized Hidden Messages

    dscf1985We all know sunglasses make any spy look cool, but these will let you see secret messages! This secret message project uses polarized film (technically a linear absorptive polarizer) to make our message hidden. To see the message you either have to look through a second piece of film, or […]

    Read more on MAKE


  • Friday, April 4, 2014 - 18:00
    How to make a Raspberry Pi solar-powered FTP server #piday #raspberrypi @Raspberry_Pi


    NewImage

    David Hayward from CNET wrote up this great how-to on making a Raspberry Pi solar-powered FTP server. Take advantage of those extra hours of daylight and make one today!

    You’ll always have instant access to all your digital files, from anywhere with an Internet connection, and it won’t cost a penny on your electricity bill.

    Read more.


    998Each Friday is PiDay here at Adafruit! Be sure to check out our posts, tutorials and new Raspberry Pi related products. Adafruit has the largest and best selection of Raspberry Pi accessories and all the code & tutorials to get you up and running in no time!

  • Friday, April 4, 2014 - 17:00
    Diner: Making a Tabletop Game

    DinerWebPromoPlay tabletop games Diner and Knot Dice at the Greenbelt Mini Maker Faire.

    Read more on MAKE


  • Friday, April 4, 2014 - 17:00
    Keeping A Monitor On Local Air Quality With Raspberry Pi! #piday #raspberrypi @Raspberry_Pi


    NewImage

    Air quality sensors and data displays using Raspberry Pis via Nick Normal

    The Little Village Air Quality Initiative is based on multiple sensors programmed to collect Carbon Monoxide, Ozone, Nitrogen Dioxide, Temperature, and Relative Humidity levels in real-time, then visualizing the data to the public. Visualizations are written in C++ using openFrameworks and loaded on the RaspberryPi. There will be many Raspberry Pi’s with display monitors visualizing data in local business and public spaces.

    NewImage

    Read more

  • Friday, April 4, 2014 - 16:39
    NEW PRODUCT – 12″ Chemical eTape Liquid Level Sensor with Teflon Jacket


    NewImage

    NEW PRODUCT – 12″ Chemical eTape Liquid Level Sensor with Teflon Jacket: The Chemical eTape Liquid Level Sensor is a solid-state sensor with a resistive output that varies with the level of the fluid. It does away with clunky mechanical floats, and easily interfaces with electronic control systems. What separates this from our other eTape Liquid Sensor is the Teflon (FEP) jacket that is rated for use in chemical, petroleum, and food safe applications.

    The eTape sensor’s envelope is compressed by the hydrostatic pressure of the fluid in which it is immersed. This results in a change in resistance that corresponds to the distance from the top of the sensor to the surface of the fluid. The sensor’s resistive output is inversely proportional to the height of the liquid: the lower the liquid level, the higher the output resistance; the higher the liquid level, the lower the output resistance.

    NewImage

    This is a very unique sensor, we haven’t seen anything else that is affordable and accurate for measuring liquid level. This particular sensor is the 12″ model, we also include a 4-pin connector and 560 ohm resistor. The connector is so you don’t have to solder directly to the delicate pins: instead, just solder to the connector and plug it onto the sensor.

    Since the sensor is resistive, it is easy to read it using a microcontroller/Arduino ADC pin. Check the tutorials tab for a quick-start pointer.

    In stock and shipping now!

  • Friday, April 4, 2014 - 16:01
    SQL Injection Fools Speed Traps and Clears Your Record

    18mpenleoksq8jpg

    Typical speed camera traps have built-in OCR software that is used to recognize license plates. A clever hacker decided to see if he could defeat the system by using SQL Injection…

    The basic premise of this hack is that the hacker has created a simple SQL statement which will hopefully cause the database to delete any record of his license plate. Or so he (she?) hopes. Talk about getting off scot-free!

    The reason this works (or could work?) is because while you would think a traffic camera is only taught to recognize the license plate characters, the developers of the third-party image recognition software simply digitize the entire thing — recognizing any and all of the characters present. While it’s certainly clever, we’re pretty sure you’ll still get pulled over and questioned — but at least it’s not as extreme as building a flashbulb array to blind traffic cameras…

    What do you guys think? Did it work? This image has been floating around the net for a few years now — if anyone knows the original story let us know!

    Filed under: computer hacks

  • Friday, April 4, 2014 - 16:00
    NEW TUTORIAL: 16×32 RGB Display with Raspberry Pi – Part 2 #piday #raspberrypi @raspberry_pi


    Raspberry pi adafruitandpi

    NEW TUTORIAL: 16×32 RGB Display with Raspberry Pi – part 2

    Daisy-chain three 16×32 LED Displays with a Raspberry Pi

    In the first tutorial using the 16×32 RGB display, we used just one of these displays with the software developed by Henner Zeller

    In this tutorial, we will look at daisy chaining together two or three of these displays and also wrapping Henner’s fast and efficient C code in some Python that will create images on the fly and populate them with text before handing them over to the C code to handle the refreshing of the display.

    Featured in this tutorial:

    See the full tutorial here!


    998Each Friday is PiDay here at Adafruit! Be sure to check out our posts, tutorials and new Raspberry Pi related products. Adafruit has the largest and best selection of Raspberry Pi accessories and all the code & tutorials to get you up and running in no time!

  • Friday, April 4, 2014 - 16:00
    UPDATED PRODUCT(S) – Adafruit’s CC3000 breakout and shields for Arduino


    Cc3000
    UPDATED PRODUCT(S) – Adafruit’s CC3000 breakout and shields for Arduino. New! As of 3/20/2014 we are shipping v1.1 which adds a tri-state buffer to the MISO pin so that you can use the CC3000 with other SPI devices on the same bus. All of our CC3000 shields already have this fix :) All in stock and shipping.

  • Friday, April 4, 2014 - 15:44
    Simple But Effective Fremen Costume #Dune


    easy fremen costume

    Fremen stillsuits are a complex construction. It makes sense; nothing about living on Arrakis should be easy. However, since you don’t actually have to recycle your body’s water, you can get away with making a simpler costume. Instructables user canida came up with a great trick to replicate a stillsuit: use an inside out wetsuit! She also has instructions on making a Jubba cloak.

    Black wetsuits look enough like stillsuits to pass unless you’re doing serious cosplay. Note that many colorful wetsuits are all-black on the inside – just turn them inside out. Equip your fremen with a crysknife, maker hooks attached to paracord, and maybe a thumper. A bit of black wire run from the ear to the nose makes it clear you’re serious about reclaiming moisture.

    If possible, add a jubba cloak. I made black cloaks for my kids the easy way. Measure shoulder-to-floor distance (drop) and shoulder width. Cut a rectangle of fabric to 1x drop by 2-3x shoulder width, depending on how swirly you want the cape. Measure head length (forehead to crown) and height (neck/shoulder join to top of head), and cut another rectangle that’s 1.5x length x 2.5x height. Fold it in half, and sew a smooth curve for the back of the head. (Best to have the target head around to test against for this step.) Sew a running stitch along the neckline of the cloak and the hood, gather to the same length, then sew them together. Cover and reinforce the join with another strip of black cloth.

    easy fremen costume 2

    Read more at Instructables.

  • Friday, April 4, 2014 - 15:00
    Students Build Video Wall for Classroom using Raspberry Pis @Raspberry_Pi #piday #raspberrypi


    Video wall e1395883925930

    Students at an Australian high school build video walls for classrooms using the raspberry pi as a low-cost alternative to the traditional video projector, via Australian Teacher Magazine.

    VIDEO projectors are commonly used in schools nowadays, but one group of senior students have been learning to build these devices from scratch with the help of the Raspberry Pi.

    The potential of this cheap and tiny computer has been explored extensively for several years now, but Andrew Moss from Dixon College in the ACT believes what his students are doing is a world first.

    “I think the students really get into the idea that they are the first in the world that have tried this out and if they succeed then they are the first in the world to have succeeded in doing it, so that really is a big motivation for them,” the robotics and engineering teacher says.

    Year 11 and 12 students, along with the help of Canberra Institute of Technology TAFE students, have been working on the video wall made up of recycled electronics.

    “We wanted to have large video screens around the school and we can’t afford to buy them. So I came across this technology … we can basically have a screen on the wall that is totally scalable, so it can be 40 inches in diameter diagonally, or it could be 80 or 360 just by adding more screens to it,” Moss explains.

    Like most schools, the college upgrades their computer equipment regularly and Moss began to notice there was a good deal of it ending up at the refuge tip.

    “The 17 inch monitors we had here for a number of years have now been upgraded to 19 inch or 21 inch, so we have about 300 monitors that were going to go to landfill.

    “I decided that instead of sending them to landfill, we could reuse them. We’ve managed to source some old networking equipment that was being thrown away, so we’re using that in the video wall as well, and even the backing mounting board and all the materials like the screen and stuff were all parts of computers.”

    The video wall can screen any type of video, and Moss envisages the school using the wall for assemblies and presentations, as well as for art installations around the school.

    “We certainly need to have installation screens regularly throughout the school and there’s been some interest in us using these Raspberry Pi video walls to provide installation screens,” he says.

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