OHANDA tlc5947 with tlc5940 library - daisy, but.. I didn't expect the distance <30 cm to be of issue, but at the same time I'm not sure what I based that expectation on.. I don't have a camera at hand now, but will try and send some images soon - the setup is very basic - 8 plain breakout boards with TLC5947's connected by 150mm FFC cable, no further components apart from one plain LED per board to test. Arduino Mini Pro or Duemilanove. With shielded cable, do you think 50cm (*16 TLC's) would be somehow achievable? I have no idea what kind of shielding this would require, do you have a direction to look in? I hardly dare any more questions, but I'm very curious to controlling the TLC's along the library and explanation at which indicates it should be possible to control the TLC's externally over shiftOut. shiftOut(dataPin, clockPin, msbFirst , data); which the above library uses. Is it possible to control the TLC5947 with Arduino's shiftOut function at all?
Open Hardware Junkies Aquaponics – Online Temperature and Humidity This project is a part of the Arduino Data Acquisition and Control System described in the upcoming book Automating Aquaponics with Arduino. You can see a live version of this tutorial here: While this project is designed with aquaponics in mind, it does not require an aquaponic system, making it useful for other projects such as home automation. The included application is, therefore, bare-bones, making it easier to integrate into any other App Engine project. How It Works Every sixty seconds, the Arduino will test its connection to App Engine. On startup, the web browser (client) will create a temperature and humidity gauge with values at zero. Software Versions: 1. 2. 3. 4. 5. Update I removed the dependency on the Timer library – it simply wasn’t needed for this application. The Arduino code has been updated. For whatever reason, the Arduino fails to connect on the third HTMLRequest. Finally, I have the serial output on by default.
Protei >> 2013/04/25, 08:00 : Barcelona, Spain>> 2013/04/18, 08:00 - April 21, 20:00 : Casablanca, Morroco>> 2012/04/06, 08:00 - April 10, 20:00 Tema (Accra), Ghana>> 2013/03/25, 08:00 - March 30, 20:00 : CAPE TOWN, SOUTH AFRICA>> 2013/03/08, 08:00 - March 18, 20:00 : Port Louis, Mauritanie>> 2013/03/06 08:00 - March 11, 20:00 : Cochin, India>> 2013/03/01, 20:00 - Feb 25, 08:00 : Rangoon, Burma>> 2013/02/20, 08:00 - Feb 21, 20:00 : Singapore>> 2013/02/12, 08:00 - February 18, 16:00 : Ho Chi Minh, Vietnam>> 2013/02/07, 08:00 - Feb 8, 20:00 : Hong Kong>> 2013/02/03 : 08:00 - Feb 4, 20:00 : Shanghai, China>> 2013/01/30, 08:00 - Jan 31, 20:00 : Kobe, Japan>> 2013/01/27, 08:00 - Jan 28, 23:00 : Yokohama, Japan >> 2013/01/15, 08:00 - 16, 20:00 : Hilo, Hawaii, USA>> 2013/01/9, 17:00 : departure from San Diego, CA, USA >> 2012/11/29 : TEDxVilaMada "Nosso Planeta Agua" Sao Paolo, Brasil >> 2012/10/18 - 28 : Protei at Lodz Design Festival, Poland. Blog Origin of the name & Biomimicry Protei Community
The World Famous Index of Arduino & Freeduino Knowledge The Imaginary Marching Band by scott peterman The Imaginary Marching Band is a series of open-source wearable instruments that allow people to create real music through pantomime. The Imaginary Trumpet With this work, I seek to advocate a more humorous and humane take on the devices that increasingly rule our daily lives. Although the computers we now carry with us wherever we go seem to draw us further and further into digital cocoons, I strongly believe as an artist that the future does not have to be so isolating. The Imaginary Marching Band proposes a reality where technology helps us interact with the real world in more memorable, unique, and ultimately fun ways. It is also a performance piece - an actual band of skilled musicians who will use these new tools to craft a one-of-a-kind stage experience. The IMB consists of six Imaginary Instruments - Trumpet, Trombone, Tuba, Snare Drum, Bass Drum, and Cymbals. Early Prototype of Imaginary Trumpet The Imaginary Marching Band's software and hardware are both open source.
Arduino Shield List Rapid Assembly for Physical Voxel Fabrication (Digital Materials) Project Members: Jonathan Hiller Imagine a desktop fabricator capable of making perfectly repeatable, arbitrary, multi material 3D objects with microscale precision. The objects would be composed of millions or even billions of small physical building blocks (voxels). Some building blocks could be hard, some could be soft. Some could be red, others green or blue. Overview In the digital domain, a 3D object is composed of repeating, fundamental building blocks known as voxels. Digital Fabrication: Voxels of multiple materials are autonomously assembled Digital manufacturing is inspired from biology, where DNA, amino acids, and proteins all illustrate systems where a digital structure is formed from a discreet number of aligned, fundamental building blocks. Hardware Just like inkjet printers scan continuously and deposit drops of ink into paper, the VoxJet deposits physical voxels (or 3D pixels) to create 3D digital matter. Digital Material Properties Publications
Can you move over? The 74HC595 8 bit shift register OK, so say you have this crazy cool idea where you need to control a ton of LEDs (I know, I know… LEDs). You looked at the multiplexer article, and that was great, but this idea is so cool, you need individual control of each LED, and turning them on one at a time just won’t do. Well again, we are here to help, and now it’s time to introduce you to the Shift Register. What does a Shift Register do? Basically a shift register will, in the end, let you expand on the digital outputs you have on your mictrocontroller. But the way it works is a little confusing to think of at first, and these are helpful enough that it is really worth understanding what the heck is going on under the hood. You can imagine a shift register as a row of chairs. Now, every 10 seconds or so, someone rings a bell, and everyone has to get up and move one chair to the right. Now bringing this idea back to the 74HC595: This shift register consists of 8 output pins, which are either high (1) or low (0). Hooking it up
Say Hello to POLYRO, The Friendly Open Source Robot Tim Payne, the creator of the bipedal humanoid PROTO-2, has developed an open source robot that can be built on a budget. It’s called POLYRO (oPen sOurce friendLY RObot), and makes extensive use of Willow Garage’s TurtleBot as its mobile base. TurtleBot takes advantage of low-cost components like the iRobot Create and Microsoft Kinect sensor, allowing it to autonomously map and navigate its environment. What POLYRO brings to the table is some much needed personality; primarily designed for human-robot interaction, it has a humanoid upper body. POLYRO stands 99cm (3’3″) tall and weighs 8.6kg (19.5 lbs) without its netbook. If university labs are looking for an inexpensive robot with plenty of potential for HRI studies, this may be the perfect solution, especially with ROS being all the rage. “I am working on a website and will eventually create a dedicated ROS page for the POLYRO project. [POLYRO @ Instructables] Thanks, Tim! Media: Image credit: Tim Payne