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David A. Mellis: Fab Speakers These portable speakers are made from laser-cut wood, fabric, veneer, and electronics. They are powered by three AAA batteries and compatible with any standard audio jack (e.g. on an iPhone, iPod, or laptop). The speakers are an experiment in open-source hardware applied to consumer electronics. Design Files Structure: fab-speakers.svg (Inkscape), fab-speakers-structure.pdfEagle: fab-speakers.brd, fab-speakers.schBill of Materials (BOM): fab-speakers-bom.pdfSchematic: fab-speakers-schematic.pdfGerbers: fab-speakers-gerbers.zip Materials (Electronics) Circuit Board (PCB): on OSH Park: $23.10 (for three boards) + shippingElectronic Components: from Digi-Key (see bill-of-materials), $17.93 + shippingSpeaker Wire: from RadioShack, $5.69 + shipping Materials (Other) You can order the laser cut parts on Ponoko (click "add to personal factory") for $19.53 + shipping. Tools Make For instructions on putting together the Fab Speakers, download the instruction booklet (PDF). Wall-Mounted Variation

Futurlec, The Electronic Components and Semiconductor Superstore ETH - IDSC - Flying Machine Arena The Flying Machine Arena (FMA) is a portable space devoted to autonomous flight. Measuring up to 10 x 10 x 10 meters, it consists of a high-precision motion capture system, a wireless communication network, and custom software executing sophisticated algorithms for estimation and control. The motion capture system can locate multiple objects in the space at rates exceeding 200 frames per second. The system uses this knowledge to determine what commands the vehicles should execute next to achieve their desired behavior, such as performing high-speed flips, balancing objects, building structures, or engaging in a game of paddle-ball. Although various objects can fly in the FMA, the machine of choice is the quadrocopter due to its agility, its mechanical simplicity and robustness, and its ability to hover.

Getting Started with PlatformIO and ESP8266 NodeMcu The Arduino editor, while functional, has never been a pinnacle of productivity and usability. PlatformIO has recently been released to bring some much needed improvements to the ecosystem. The IDE is built on top of GitHub's Atom text editor, which provides an excellent extensibility model that the Arduino IDE was sorely missing. The NodeMcu ESP8266 dev board has become an extremely popular choice for an inexpensive wifi enabled microcontroller for IoT projects. In my own experimentation, I've found the ESP8266 Arduino libraries and toolchain to work much better than the Lua toolchain. Install PlatformIO The first step is to download and install the PlatformIO IDE. Depending on how you install, you may experience the error "command not found: pio" when performing later steps in this tutorial. Install NodeMcu USB Driver All NodeMcu boards have a USB to Serial chip that requires a driver for Windows and Mac. Create Project We're now ready to write some code. Hello World > pio lib install 89

GamePack Were you ever the kind of person to hack up your own Playstation controllers and hook it up to something else? Well, those shards of plastic can be mighty dangerous, so I’ve done it for you. And hey, with the GamePack you’ll even have something you can hook it up to. The GamePack comes with an Arduino, MeCap Backpack, TouchShield Stealth or Slide, ExtenderShield and an InputShield- everything you need to create your own open source, portable gaming device. I’ve just added a new option for wide screen that includes the new TouchShield Slide. Components Specifications TouchShield Slide: 320×240 LCD Screen Resistive Touch Screen Holds 60 128×128 bitmap images Compatible with Arduino Environment Only Uses Arduino Pins: 3 and 4 Graphics Library Ready to Go Draw Shapes, Pixels, Colors, Graphs, Buttons 2.83 inch diagonal Tutorials/Blogs Reference and Firmware Media Another shot of the Open Source Gameboy Project

InMojo - Make. Share. Live. Open Source Hardware. Finding Parts - Hobbyist / Surplus Sites The data on the "Finding Parts" pages is actually all in a Wiki (a webpage that anyone, even you, can edit!) If you have suggestions or ideas for other companies or sources you can post it in the forum but it might be faster and easier to just edit the wiki page yourself! (You'll have to make an account "Not the best, but still a good deal" This is not an exhaustive list, but these are my favorite surplus locations. General Surplus parts and components Dan's Small Parts and Kits A wide variety of transistors, diodes, inductors, caps, crystals, discreet RF devices, standoffs, connectors etc. Evil Mad Scientist Laboratories lots of fun kits, cool "BulbDial" clock, awesome 12" and 2.3" 7 segment displays, LEDs, ICs, Servos, Stepper motors, tools, Proto and bread board stuff. Jameco Electronics Lots of parts and you can order a paper catalog. they also have grab bags of lots of commonly used parts(LEDs, resistors, capacitors, 7 segment displays, stand offs and hardware, etc.) Tayda Electronics

BaronPilot Arduino based copilot autostabilizer with Nintendo Wii component (tricopter, quadcopter) This is a program to stabilize a multicopter (copilot), runs on microcontroller like Arduino or Teensy++ and only a wii motion plus, no other electronics needed. These project started April, 2010. Supported are planes, tricopter, quadricopter (+ and x config), hexacopter (penta and coaxial). The self-leveling capability helps when doing FPV (first person view). 19 Oct 2011 Look at the new quadricopter shop . 21 Jan 2011 First step in the UAV complete system with GPS, this is the first implementation of the DCM filtering with Wii components, and a MARG sensor array, this is really really fast way! The BaronPilot name & project will be changed, the new SuperEconomical UAV will be main target for this project. Founding a new company to project&build this vehicles, with no worry for users, cheap, and fast delivery. 3 Nov 2010 Introduced the V60 with the new Multiwii compatible mode, you don't need to modify hardware between the two platform (and to test the GUI). 1 Nov 2010 Removed old blog entry

Arduino UNO Tutorial 6 - Rotary Encoder Arduino UNO Tutorial 6 - Rotary Encoder We have written a tutorial for Rotary Encoders using a Microchip microcontroller but now would be a good time to make an Arduino UNO version. With a rotary encoder we have two square wave outputs (A and B) which are 90 degrees out of phase with each other. Every time the A signal pulse goes from positive to zero, we read the value of the B pulse. We will now use the rotary encoder in the simplest of applications, we will use it to control the brightness of an led by altering a pwm signal. We will use the sparkfun encoder as discussed above. Each time our timer code triggers, we compare the value of our A pulse with its previous value. The schematic is shown below Here is the schematic breadboarded And the source code for the sketch is shown below.

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