h:D

Planet

  • Samedi, Mars 22, 2014 - 16:42
    HackTV

    dsc09297.jpg

    • Un téléviseur en panne ?

    Plus où moins… En fait on m'a fait don de cette télé qui fonctionne plutôt bien malgré la piètre qualité des couleurs…
    Sauf qu'en basculant sur les canaux AV1 et AV2 ou encore S-VHS, un horrible sifflement se fait entendre, qu'une source vidéo soit connectée ou non, et quelque soit le réglage du volume sonore.
    Bruit parasite strident qui cesse dés qu'on remet la TV sur son tuner… Étonnant !

    J'ai alors entrepris d'ouvrir l'engin et de trouver un défaut évident, mais rien de probant.
    De plus, impossible d'identifier la marque et le modèle du châssis, de ce TV DUAL ETV 70440.
    À force de recherches sur le circuit et sur internet, j'ai fini par comprendre qu'il s'agissait en fait d'un châssis standard de type E9.
    Sur une base commune, les fabricants de TV pouvaient donc distribuer leurs produits avec plus où moins d'options, câblées ou non sur ce châssis.
    Ensuite il ne restait qu'à dégoter le « Chassis TV Standard E9 Service Manual[1] », permettant de suivre le schéma à la recherche de la panne, mais je n'ai rien trouvé, et au bout de quelques heures, j'en ai eu marre…

    • Une panne à la con que j'ai donc choisi de contourner, en déconnectant simplement des enceintes l'ampli audio du chassis E9, pour le remplacer par un ampli d'enceinte de PC.

    J'ai raccordé celui-ci sur les enceintes et la prise casque du TV, puis ajusté le niveau de son amplification de manière cohérente avec le réglage du volume de la prise casque à la télécommande.

    Voilà !
    dsc09298.jpg
    dsc09299.jpg

    Le Service Manual s'est révélé très utile pour bénéficier de la manipulation à effectuer à la télécommande pour accéder au menu « ingénieur », permettant notamment le réglage de la géométrie de l'image.

    Note

    [1] dispo en annexe ci-dessous

  • Samedi, Mars 22, 2014 - 15:32
    SparkFun April Fool's Prank Contest

    We love a good prank. The build up, the suspense - the final moments…it’s just so much fun. Today we want to invite you to participate in the SparkFun April Fool’s Prank Contest. Watch the video for more details:

    Did you watch? No? Ok, well here are the rules or those who prefer the written word:

    • Send us a video of your best prank! The prank must use electronics (though not necessarily from SparkFun). Send an email with a YouTube or Vimeo link of your prank to AprilFools@sparkfun.com
    • We will accept entries until 11:59 p.m. MT on March 31st, 2014.
    • The next day (April Fool’s Day) we will post the top three pranks on our website - the winners will get $300 in SparkFun credit for first place, $200 in SparkFun credit for second place and $100 in SparkFun credit for third.
    • You can submit an old prank project if you want, but keep in mind points will be awarded for creativity, prank effectiveness (did you get ‘em good?!) and your use of electronics.

    But wait - there’s more!

    Don’t have time to build a prank in the next week? No problem! Submit your idea for a great electronics based prank in the comments below. We’ll choose one winner, and after April Fool’s day passes, we’ll build your prank idea and then film it in action at SparkFun HQ. We’ll also send you a $50 SparkFun credit! We’ll accept entries for this part of the contest until 11:59 p.m. MT on March 31st, 2014 as well.

    Good luck - we can’t wait to see your pranks!

    comments | comment feed

  • Samedi, Mars 22, 2014 - 15:00
    Hackerspace Tour: Xerocraft In Tucson, Arizona

    xero

    While we try to get out to as many hackerspaces as possible, we can’t be everywhere. Not wanting to wait for a Hackaday compatriot to roll through their dusty town, the folks over at Xerocraft in Tucson, Arizona sent in their own video tour of their space.

    We’ve seen the Xerocraft space before when [Caleb] rolled through town on his south-west tour a few years ago. Since then, a lot has changed; they have a new, larger, and cleaner space a few miles north of the old one. There’s also a huge increase in the number of tools. While the old space had all the usual metalworking tools, the new space has a much improved wood shop and more 3D printers than anyone can shake a stick at.

    From the video, it looks like a great space, and from their blog it looks like they’ve got some really cool projects under their belt. If you’re a member of a hackerspace, we’re always looking for some tour videos. Be sure to send them in so you can share your space with the rest of the Hackaday readership.

    Filed under: Hackerspaces

  • Samedi, Mars 22, 2014 - 13:16
    Marty McFly H-Copter Hoverboard – it’s real

    Marty McFly H-Copter Hoverboard - it’s real via HaD.

    This H-copter on steroids has an “all up” weight of 20lbs when you add the “Marty” mannequin and 13.4Ah 5S lipo battery. The chassis is made of 300PSI 1/2in PVC. Each motor can handle 1200W but only takes 640W to hover. The battery acts as a counter-balance below the prop line. Flying time is respectable at over 5 minutes thanks to the 83% efficiency of the 12″ props. It is controlled by multiwii 2.3. Flying is simplified by using the magnetometer in Head Free mode (not available on KK2) The entire system was simulated with eCalc before construction. This was not the first iteration of the design. I explored bi-copter, tri-copter, and dual-copter configurations but ended up with the traditional quad for it’s simplicity and stability.

  • Samedi, Mars 22, 2014 - 13:00
    CNC At Home: Machining Aluminum with a Tormach PCNC 1100

    Screen Shot 2014-03-21 at 5.20.00 PMThis “day in the life” tutorial video explores machining an aluminum plate from start to finish!

    Read more on MAKE


  • Samedi, Mars 22, 2014 - 12:01
    It’s Not 2015 Yet But Marty and His Hoverboard Are Already Here!

    mharti

    Okay now this is seriously awesome. [Rodger Cleye] has made a real working Hoverboard.

    You guys might remember the recent [Tony Hawk] and [Christopher Lloyd] viral Hoverboard hoax video… Well, this isn’t that. Nope, not even close. It’s real.

    The Hoverboard is a quadrotor on steroids — it features four 1200W brushless motors driving 12″ props, a massive 13.4Ah 5S Li-Po battery, and a [Marty McFly] mannequin wearing the classic red vest. He’s counter-balanced [Marty] and the battery around the rotors which makes for a surprisingly smooth flight. It even has a run-time of over 5 minutes, thanks to a whopping 83% efficiency using the 12″ props.

    [Rodger] designed and simulated the entire system in eCalc before construction — He had first attempted a bi-copter design, but opted for the tried and true quad-rotor instead. The frame is made of 1/2″ PVC pipe to conserve the mass budget, but altogether it still weighs an unbelievable 20lbs! How close are we to being able to give toddlers the ability to fly?

    Just take a look at the following video — we’re seriously impressed.

    http://www.youtube.com/watch?v=EsdRZvKFcFo

    This has gotta be one of the biggest home-made quads we’ve seen so far. Mind you the Spruce Goose of quadrotors is still a bit bigger…

    Filed under: drone hacks

  • Samedi, Mars 22, 2014 - 09:01
    Crafternoon: Forget Potatoes, We’re Making Stamps with Lasers

    No, that’s not Heisenberg without his hat. It’s [Jens], and he laser-cut a stamp of his face out of EVA foam. He made the laser cutter himself, which we covered a couple of months ago.

    Let’s take a brief interlude to discuss your beautiful eyeballs. Keep them safe, okay? If you’re going to play with lasers, be smart and protect yourself according to the wattage and wavelength. Alright, back to business.

    [Jens] started by making a stencil from a photo using this tutorial. He added a frame and supports around his face to keep everything where it should be. [Jens] then turned to Inkscape to generate the g-code using the laser plugin and then proceeded to cut his countenance into EVA foam.

    After gluing the foam to a wood backing, he cut off the supports. Now it’s ready to stamp. You could use a brayer if you have one or maybe your wife’s rolling pin to apply whatever ink or paint you want to use. [Jens] loaded up his stamp with a sponge.

    Filed under: laser hacks

  • Samedi, Mars 22, 2014 - 06:01
    Open Source SwitchMote Promises Easy Home Automation

    moteino

    [Felix Rusu] is fast becoming a big name in home automation with his clever Moteino systems. His latest is called the SwitchMote which is a super easy way to upgrade your light switches for home automation, and he’s just released the source!

    The SwitchMote is a drop in wireless light switch which lets you control a standard AC load, limited to 100W at this time. It uses a solid state relay (SSR) to perform the switching, but like any project involving mains electricity… MAKE SURE YOU KNOW WHAT YOU’RE DOING!

    It makes use of a Moteino (duh) which is a wireless Arduino clone that operates over RF. We’ve seen it used before to control a Keurig coffee maker, operate a garage door over the internet, and even text you when your sump pump fails and your basement is about to flood!

    Excited? Take a look at his GitHub repository, and check out how it works in the following video.

    Did we mention you can program it wirelessly as well?

    Filed under: Arduino Hacks, home hacks

  • Samedi, Mars 22, 2014 - 06:00
    Opinions On Internet Privacy #SaturdayMorningCartoons

    Xkcd Privacy Opinions

    Opinions On Internet Privacy. xkcd webcomics

    Read more


    Each Saturday Morning here at Adafruit is Saturday Morning Cartoons! Be sure to check our cartoon and animated posts both nostalgic and new that inspire makers of all ages! You’ll find how-tos for young makers, approaches to learning about science and engineering, and all sorts of comic strip and animated Saturday Morning fun! Be sure to check out our Adafruit products featuring comic book art while you’re at it!

  • Samedi, Mars 22, 2014 - 05:00
    What If?: Serious Scientific Answers to Absurd Hypothetical Questions to be released September 2nd #SaturdayMorningCartoons

    NewImage

    “What if” has the hilarious and informative answers to important scientific questions you probably never thought to ask from the creator of webcomic xkcd

    What If?: Serious Scientific Answers to Absurd Hypothetical Questions will be published September 2nd by Houghton Mifflin Harcourt. Starting today you can pre-order it from your favorite bookseller (Barnes & Noble, Amazon, Indie Bound). There are also foreign editions, including a UK and Commonwealth edition and a German edition.

    As I’ve sifted through the letters submitted to What If every week, I’ve occasionally set aside particularly neat questions that I wanted to spend a little more time on. This book features my answers to those questions, along with revised and updated versions of some of my favorite articles from the site. (I’m also including my personal list of the weirdest questions people have submitted.)

    NewImage

    Read more


    Each Saturday Morning here at Adafruit is Saturday Morning Cartoons! Be sure to check our cartoon and animated posts both nostalgic and new that inspire makers of all ages! You’ll find how-tos for young makers, approaches to learning about science and engineering, and all sorts of comic strip and animated Saturday Morning fun! Be sure to check out our Adafruit products featuring comic book art while you’re at it!

  • Samedi, Mars 22, 2014 - 03:01
    Need to Reference the US Constitution Fast? How’s 6 Seconds Sound?

    CONSTI2GO-Thibault-Brevet-2

    Well, unless you know exactly what you’re referencing it’s going to take you a lot longer, but this clever serial receipt printer hack will let you print the whole darn thing in just 6 seconds!

    Commissioned by [Jeff Goldenson] for his LABRARY.bike (quite literally a pop-up library on a bike), it was actually shown off at SXSW Interactive — did anyone see it in person? The artist-hacker who created it is [Thibault Brevet], the guy who brought us the DRM chair that only works 8 times before it falls to pieces.

    Anyway, this cool and rather suspicious looking tube with a serial cord hanging out contains an Arduino, a max232 chip and a small Li-Po battery. The Arduino communicates with the printer through the max232 chip by converting the TTL signal to RS-232. It has a single button on top, which when it is connected to the printer will send out the US Constitution over the serial interface via ESC/p language.

    Did we mention how fast it is?

    Receipt printers are a lot of fun once you figure out how to communicate with them. After that you’ll be wasting receipt paper like no tomorrow with this extremely wasteful (but awesome) printer based video game!

    [Thanks Itay!]

    Filed under: Arduino Hacks, misc hacks

  • Samedi, Mars 22, 2014 - 01:58
    Advanced PCB Making for the People

    IMG_6049Seattle retail makerspace Metrix is pushing the envelope of tool access with their Advanced Circuits Lab. Their LPKF Protolaser S is the only such machine available to the general public in the world.

    Read more on MAKE


  • Samedi, Mars 22, 2014 - 00:05
    NEW PRODUCT – Analog Output K-Type Thermocouple Amplifier – AD8495 Breakout

    1778 LRG

    NEW PRODUCT – Analog Output K-Type Thermocouple Amplifier – AD8495 Breakout: Thermocouples are very sensitive, requiring a good amplifier with a cold-compensation reference. We have a couple digital thermocouple amplifiers in the shop already from Maxim. Now we’re happy to introduce an excellent analog-output amplifier. This is a very simple sensor to use, and if your microcontroller has analog input capability, you’ll be ready to go really fast!

    The AD8495 K-type thermocouple amplifier from Analog Devices is so easy to use, we documented the whole thing on the back of the tiny PCB. Power the board with 3-18VDC and measure the output voltage on the OUT pin. You can easily convert the voltage to temperature with the following equation: Temperature = (Vout – 1.25) / 0.005 V. So for example, if the voltage is 1.5VDC, the temperature is (1.5 – 1.25) / 0.005 = 60°C

    1778kit LRG

    Each order comes with a 2 pin terminal block (for connecting to the thermocouple), a fully assembled PCB with the AD8495 + TLVH125 precision voltage reference, and pin header (to plug into any breadboard or perfboard). Goes great with our 1m K-type thermocouple (not included). Not for use with any other kind of thermocouple, K type only!

    1778assembly LRG

    • Works with any K type thermocouple
    • Will not work with any other kind of thermocouple other than K type
    • Easy to use analog output
    • Temp range with 5V power: -250°C to +750°C output (0 to 5VDC)
    • Temp range with 3.3V power: -250°C to +410°C output (0 to 3.3VDC)

    In stock and shipping now!

  • Samedi, Mars 22, 2014 - 00:01
    Stealth Bluetooth Stereo: It’s a Jeep Thing

    jeep-bluetooth

    [Feueru] wanted to update the sound system in his 1998 Jeep Wrangler. The problem is that soft top Jeeps are notorious for radio theft. His solution was to build his own stealth bluetooth stereo. The music comes from his Nexus 5 via bluetooth. A Fusion MS-BT 100 waterproof bluetooth receiver picks up the tunes. From there the signal is passed through the one external control, a line level volume knob. A “BMWx-43 300 Watt” amplifier provides the power to drive the Jeep’s speakers. We’re a bit dubious about the 300 Watt rating, as well as the “Only from the mind of a German” catch phrase. Hey, at least the real BMW didn’t have the amplifiers destroyed at the US port due to trademark issues. 

    [Feueru] used a standard DIN radio install kit for his Jeep. In place of a headunit, he glued an ABS plastic sheet. The ABS provided a good place to mount his volume control. That volume knob was a bit lonely, so [Feueru] added “Plan B”, his winch controls. The final result looks… well, it looks like a single knob, which is exactly what [Feueru] was going for. Any would-be car radio thief would pass this right by. The only thing missing is an actual FM receiver. Sure, there is a bit of loss when using a bluetooth audio path. However, this is a soft top Jeep with stock speakers, so it’s really not noticeable to [Feueru].

    [via reddit]

    Filed under: transportation hacks

  • Vendredi, Mars 21, 2014 - 22:22
    NEW PRODUCT – SI1145 Digital UV Index / IR / Visible Light Sensor

    NewImage

    NEW PRODUCT – SI1145 Digital UV Index / IR / Visible Light Sensor: Remember when you were a kid and there was a birthday party at the pool and your parents totally embarrassed you by slathering you all over with sunscreen and you were all “MOM I HAVE ENOUGH SUNSCREEN” and she wouldn’t listen? Well, if you had this UV Index sensor connected up to an Arduino you could have said “According to this calibrated SI1145 sensor from SiLabs,the UV index right now is 4.5 which means I do not need more sunscreen” and she would have been so impressed with your project that you could have spent more time splashing around.

    NewImage

    The SI1145 is a new sensor from SiLabs with a calibrated UV sensing element that can calculate UV Index. Unlike a basic UV analog sensor, it has a weighted calibration for UVA, UVB and UVC to give you a more precise UV index output than just “mW/cm2″. It’s a digital sensor that works over I2C so just about any microcontroller can use it. The sensor also has visible and IR sensing elements so you can measure just about any kind of light – we only wrote our library to printout the ‘counts’ rather than the calculate the exact values of IR and Visible light so if you need precision Lux measurement check out the TSL2561. If you’re feeling really advanced, you can connect up an IR LED to the LED pin and use the basic proximity sensor capability that is in the SI1145 as well.

    NewImage

    We wrapped this nice little sensor up on a PCB with level shifting and regulation circuitry so you can safely use it with 3 or 5V microcontrollers. If you are using an Arduino, we’ve got a lovely tutorial and library already written up with example code so you can quickly read sensor readings and the UV index in under 10 minutes. Each order comes with one fully assembled and tested PCB breakout and a small piece of header. You’ll need to solder the header onto the PCB but it’s fairly easy and takes only a few minutes even for a beginner.

    In stock and shipping now!

  • Vendredi, Mars 21, 2014 - 22:00
    Scale Mail Tutorial

    scale mail tutorial

    Armor comes in all forms, and scale mail is an attractive option. You can fashion it in a few ways – from expensive heavy materials to lightweight and more affordable options like styrene. Over at White Rabbit Costuming, cosplayer Vartazian breaks down how to make scale mail from styrene, fabric, super glue, and body armor. It’s a beginner level tutorial, so all you need is time and patience. Here’s info on the specific styrene and creating the scales:

    First, you need Styrene (Also known as Plasticard.) You can find packs of 2-4 sheets for about 6-8$ per pack. Get them at your local train hobby store. Getting .10 grade works but anything up to .2 will work (Anything thicker will be more difficult to cut.) You will get about 30-40 scales per sheet of Styrene (For scales 2inx1in tall)

    Next, make your trace [sample scale]. This is important, make sure it is symmetrical (you will thank me later). My scales are 2 inches tall by 1 inch wide. Trace in pencil. (Dont lose the trace!).

    scale mail tutorial 2

    Read more at White Rabbit Costuming.

  • Vendredi, Mars 21, 2014 - 21:35
    Resin Casting: Going from CAD to Engineering-Grade Plastic Parts

    sample partsPlastics are not just ubiquitous, but extremely versatile: some of them are incredibly stretchy, while some are hard as nails; some are crystal clear, and others come in all colors of the rainbow; some can survive extreme temperatures, and yet others can stop a bullet mid-flight. Michal Zalewski walks us through his simple process for casting plastic parts for use in high-tolerance engineering applications.

    Read more on MAKE


  • Vendredi, Mars 21, 2014 - 21:01
    Hackaday Visits NOVA Labs And Small Batch Assembly

    header

    A few days ago Hackaday visited NOVA Labs, one of the premier hackerspaces around Washington, DC. In our video tour, co-founder [Justin Leto] shows off the space, going through all the awesome tools, workspaces, and projects his space has put together over the years.

    One of the most impressive parts of NOVA Labs is the incredible amount of woodworking equipment. Everything from a Blacktoe CNC router, table and bandsaws, jointers, planers, real woodworking benches, and enough clamps to hold anything together are from a NOVA member that is co-locating his equipment for the rest of the hackerspace to share.

    Apart from the woodworking tools, NOVA also has a few laser cutters and enough 3D printers for all the octopodes and Yoda heads you could ever imagine. A few of the members put together 3D build classes, and the machines being constructed are very, very cool. They’re using a Raspi with OctoPrint in their latest builds, attaching a camera to the frame and using a tablet for the interface. It’s just about the smoothest and cleanest 3D printer interface possible without using a computer.

    There’s a lot of cool stuff happening at NOVA; the DC Area Drone User Group is the area’s largest group of unmanned aerial vehicles not housed in a five-sided building, and have done some aerial mapping for the metro station that will soon displace the hackerspace. NOVA also hosted a mini maker faire last weekend with over four thousand attendees. Impressive, to say the least.

    Also at NOVA Labs is a small business the guys are incubating headed up by [Bob Coggeshall], also known as one of the guys who wrote sudo. It’s Small Batch Assembly, a very cool service that takes panelized PCBs and reels of components and assembles them. While we were there, [Bob] was assembling a few dozen boards stuffed with WS2812 LEDs for the R2D2 Builders Club.

    [Bob] is using a very cool and very expensive Manncorp pick and place machine for placing all the components, squeegeeing the solder paste through Kapton film he laser cut on the NOVA Labs machines. It’s only a small-scale operation, but when it comes to placing thousands of SMD components for a few dozen boards, there probably isn’t a better way.

    You can check out the video of NOVA, Small Batch Assembly, and a whole bunch of pics below.

    23
    3
    7
    21
    11
    19
    13
    25
    1
    8
    5
    4
    17
    2
    6
    30
    16
    20
    26
    24
    32
    9
    27
    29
    31
    28
    10
    22
    12
    14
    666
    18
    15
    Filed under: Hackerspaces

  • Vendredi, Mars 21, 2014 - 21:00
    GitPi: A Private Git Server on Raspberry Pi @Raspberry_Pi #piday #raspberrypi

    NewImage

    Instructables user scottkidall has posted this useful tutorial for nabbing your own private Git server without paying for the private repository service that GitHub offers.

    Git is usually used in synchronization with GitHub — the former is a source code management system and the latter is a website where you can share/contribute Git repositories with the larger internet community.

    For those wanting to get started with GitHub, I’ve written this Instructable: Introduction to GitHub.

    But, what if you want to keep your repositories private? The usual answer is that you have to pay for this service. Boo.

    A lot of us have code-in-progress that we want to properly put onto the Git system, but ins’t ready for public consumption. Nor do we want to pay for the service of private hosting.

    However, using the Raspberry Pi, you can set up your own Git server on your home network.

    This Instructable will cover setting up your Raspberry Pi as a Git server with repositories saved onto an external USB thumb drive. My example uses the Mac OS, but can be extended to other platforms as well.

    You should already have Git installed on your laptop and know the fundamentals of how to use it. Check out the Introduction to GitHub Instructable if this is not the case.

    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!

  • Vendredi, Mars 21, 2014 - 20:30
    Community Corner: This Past Week in the Adafruit Community 3/21/2014

    Featured Adafruit Community Project

    NateWinesett

    Nate Winesett shared:

    I just wrapped up my first Raspberry Pi project. I’m using one to run my own TV station within the house. A +Plex media server on my network serves out video to an +XBMC distribution running on the +Raspberry Pi where the video is then sent to a modulator and then combined with all the over-the-air channels that we happen to get. The result is that we can tune into a specific channel (set at the modulator) on any TV in the house and watch an endless loop of, in our case, Simpsons and Futurama episodes. You get the sense of it being a normal TV channel, except that it’s only stuff you like and there are no commercials. I’ve been running a desktop to do this for the past 8 years, but finally had the epiphany a week ago to use the Raspberry Pi gathering dust on my shelf to cut the power, heat and noise down to almost nothing.

    (read more)

    There are people making amazing things around the world, are you one of them? Join the 77,311 strong! And check out scores of projects they shared this week after the jump!


    This Week’s Edition of Adafruit’s Electronics Show and Tell!


    From the Google+ Community

    (Note: Google+ login required.)

    SameerAnsari

    Sameer Ansari shared: “Using Google Glass’s gyroscopes to control a camera’s pan and tilt. Stuff used: Raspberry Pi + Camera, ROS rosbridge/rosserial/roslibjs, Arduino + 2 microservos, Hot Glue/Duct-Tape/Dreams”
    (read more)


    RifleCreek

    Rifle Creek shared: “a textile unit: designed in Sketchup for 3D printing, tessellated X Y, and linked in Z, as 3D printer resolution increases…starting to think really small. could be used for maybe… breathable fabric meshes, engineered porous micro tubes, separation and filtering…” (read more)


    Makers hackers artists engineers Community Google

    james wolf shared: “I have been thinking about making a simple crawling bot. I needed to come up with a design for part of it that could operate 2 opposing legs with just one servo. I thought this design might work. The setup pivots the black plastic post that is attached to the lower half of the servo with a box. This keeps the two horizontal pieces in line and allows the “feet” to move up and down with just a rotation of the servo. It is strong, friction free, and maximizes the servos strength….” (read more)


    MikeBarelaHat

    Mike Barela shared: “A quick build for the NoVa Mini Maker Faire using Adafruit #Trinket and #NeoPixels” (read more)


    MilesFlavel

    Miles Flavel shared: “The Norseboard is now electronically and functionally complete. All that’s left to do is print the remaining 5 case sections that make up the top half and I’ll be able to call it “version 1″. Since I last showed it, I’ve added the external power port, an external USB type-B connector, and a switch to toggle between use as a standalone keyboard and keyboard for the internal RasPi.” (read more)


    Makers hackers artists engineers Community Google

    Alfonso E.M. shared: “Cookie Gears. Prototype I.” (read more)


    OlegMazurov

    Oleg Mazurov shared: “Poor man’s automatic oiler, made in 5 minutes. Gravity feed FTW.” (read more)


    Ryan Farr

    Ryan Farr shared: “Ive been having fun animating dual Adafruit Neopixel strips on a headband with the Arduino! This is the random color, random led, fade in/out algorithm I wrote. Give me some other Animation suggestions to work on! :)” (read more)


    Makers hackers artists engineers Community Google

    Richard Freeman shared: “My sister had a leak beside the foundation of her house for several years, and we finally fixed it the other day. When we dug it up to fix it finally, we found what seemed to be a large cavity under the foundation. I was worried that the leak (which was really bad for a really long time. I’m astounded that she didn’t realize there was a leak sooner.) was causing a sinkhole. This was my solution to investigate the hole further. I ran the pi headless & I used Motion as a webcam server. The webcam cost $0.02 off of eBay, and had free shipping. :) and it has the LEDs on it with adjustable brightness. I took it out of its casing.” (read more)


    Community Projects from the Adafruit Blog

    DustinEvans

    Dustin Evans shared his Homemade Tesseract Case in the Adafruit Forums: “Inside is an Arduino with a spectrum shield and BlueSmirf Bluetooth Modem from SparkFun, a Raspberry Pi, 7″ LCD Monitor, two speakers, a digital amp,, a WiFi Card, and 2 strips of NeoPixels I got from Adafruit. The case I got from Harbor Freight. The monitor has two video inputs. The Raspberry Pi has an RCA splitter that connects to the monitor and a video out on the side of the case. The second video input is wired to an RCA coupler on the side of the case. The audio is connected the same way. This means I can have audio or video connected to the case or brought out to a different system. In my living room, I had it connected to my projector. I’m running Raspbian on the Pi with a stand-alone version of XBMC. I followed this guide to make the Pi broadcast its own wireless network. That setup along with AllCast allows me to send movies on my Nexus 7 to the Pi without me having to touch a thing. This is great because I conduct electricity like a member of the X-Men and actually broke one of my LEDs when I zapped the case on accident. The Bluesmirf allows me to connect to, and change the LEDs with a custom Android app I wrote.” (read more)


    WiliamPhelps

    William Phelps shared on the Adafruit Forums: “I’ve written a python program to display GPS satellite data, with some stars and the brighter planets, specifically for the PiTFT display. The GPS parsing is done in a separate thread. The display is unique – it plots circles for each GPS satellite that is overhead, with the size of the circle proportional to the S/N ratio. It even has 10 second position averaging.” (read more)


    feynman17 shared a Arduino SVG plotter v.2 project: “…The frame of the plotter was taken from a ye olde Epson printer, reusing the two stepper motors to move the paper along its length and width. The pen is attached to the laser head of a junked portable CD player. With this, it’s just three stepper motors that allow the Arduino control system to move the pen across the paper and put a few markings down. The motors on the printer are, in the spirit of reuse, still connected to the printer’s driver board, with a few leads going directly from the Arduino to the parallel port interface. The motor in the CD player is another ordeal, with a single H-bridge controlling the lifting of the pen. On the software side of things, a Processing sketch reads an SVG file and generates a list of coordinates along a path. The precision of the coordinates is set as a variable, but from the video of the plotter below, this plotter has at least as much resolution as the tip of the pen….” (read more)


    Alex Stranz shared a cool Raspberry Pi piggy bank with coin sorter: “A piggy bank and coin sorter made using a Raspberry Pi, an Arduino, Lego Mindstorms NXT, a coin acceptor, Adafruit’s LCD Plate, and a fingerprint sensor. It counts, sorts, and stores coins. The Arduino is connected to the Raspberry Pi via a USB hub; it communicates with the fingerprint sensor and detects what kind of coin is inserted. A Python script outputs information to the LCD display and stores data in a text file.” (read more)


    Harvest Zhang and Bonnie Eisenman shared a musical instrument project on the Adafruit Forums – fancy, easy touch sensing + turning water into an instrument: “Thought you might be interested — my friend Harvest and I implemented this adaptation of Disney’s Touche touch sensing system for Arduino, and used it to turn a mug of water in to a musical instrument. The extra parts cost about $1-2; everything else (Arduino, breadboard, mug) you probably already have lying around. And it was so much fun! We got pretty sensitive and robust gesture sensing working — we could tell how many fingers they had on the outside of the mug, when they touched the water’s surface, etc. So then we used ChucK (a musical programming language) to turn it into an instrument. Full blog post, including github w/ all relevant code and sound files, as well as links to an Instructables here! Theoretically this should work with any conductive surface (e.g. people, plants, large metal objects, etc) but we haven’t tested it on other things yet. Would love to hear from anyone else who wants to try this. We owe a lot to other people who have posted similar things; it’s adapted from Disney’s Touché technology (full credits in the Instructables post/github)…(read more)


    Pasted Image 3 21 14 2 55 PM

    Tim Bartlett shared his Valentines Day Blinky Love Note project! “I made a blinky love note for my sweetheart this Valentine’s Day, because what’s more romantic than Morse code? A single LED paints a 6″ x 6″ canvas with light. It first tells a story through color, and then slowly pulses a secret message in Morse code, fading from deep to light pink. The smart LED is run from a 5v Adafruit Trinket, powered by 4 AA batteries. Download the code here. (This just blinks “hello world.” The secret message will remain secret).” (read more)


    AdamRenie

    Adam Renie shared this on the Adafruit Forums: “I purchased the A’SYCK AD-121F2 from Adafruit last year and finally posted a little review and demonstration of it in action on my blog. It’s a really fun display, I may just have to purchase 3-5 more to make a more easily readable and colorful clock!” (read more)


    Scanlime

    One of CODAME‘s featured artists is Micah Elizabeth Scott, who blends technology with art in surprising and interesting ways: From CODAME: “Micah Elizabeth Scott has been doing unconventional things with technology for her whole life, often exploring the boundaries between hardware and software. She’s built satellites, robots, virtual machines, graphics drivers, CPU emulators, networking stacks, USB controllers, reverse engineering tools, and pretty much everything in between. Recently she’s been exploring the interactions between technology and art, with projects like Zen Photon Garden and the Ardent Mobile Cloud Platform. Her current work explores light, perception, and human interconnectedness. Her interests include interactive sculpture, control loops, emergent behavior, unconventional human interfaces, and using technology to help illuminate what makes us human.” (read more)


    Adafruit industries blog


    Check out previous Community Corner posts here!


    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!

Pages