## Archive for the ‘languages’ Category

### MAKEmatics – Mathematics for Makers

Wednesday, May 9th, 2012

Makers need to familiarize themselves with the core concepts and the theory involved in creating applications such as Motion Sensing and Face Tracking. As the technology is churning out new hardware day and night, DIYers need to work hard to keep up and always be in touch with the latest technology around them.

For example, anyone working with Accelerometers/ Gyroscopes or Inertial Measurement Units needs to understand the theory of Vectors, Force, Gravity and be able to work out complex mathematical problems. They may easily get an Arduino Board and an Accelerometer Breakout or an IMU Board and use a library instead of writing their own code but to truly understand the theory behind it; how the device actually works, is not for the faint of heart.

One such problem is the Face Tracking Application. Unless you know the real theory behind how the Algorithm actually works, you can only wonder about that robot which follows its master. Greg Borenstein had an idea of creating a website dedicated to this issue. Makematics – Math for Makers.

In an introductory post, Greg writes:

” I hope to show that a normal programmer with no special academic training can grapple with these areas of research and find a way in to understanding them. And as I go I aim to create material that will help others do the same. If I can do it, there’s no reason you can’t.”

More and more people should step forward and create or compile a good amount of research data to help fellow makers and DIYers in solving complex mathematical problems.

### A revisit to open frameworks

Saturday, May 5th, 2012

Remember this?

A good tutorial by Sparkfun will help us make the above display. Before we begin let us take a few questions on Open Frameworks.

Q> What is Open Frameworks?

openFrameworks is a very handy software library written in C++ that is written for the sole purpose of reducing the software development overhead faced by designers and artists that would like to create pieces that use various media (graphics, sound, video, electronics, etc.).

Q> Why Open Frameworks when there is Processing?

Because there are some things that oF is well suited for that Processing just can’t handle. oF is much better at creating projects that use a lot of 3D Graphics, computer vision libraries like OpenCV or projects that involve the real-time manipulation of video. Also, while Processing requires a Java backend, oF is simply a set of C++ libraries, meaning that developers comfortable with C++ will be right at home.

Q> Where can I find more data and examples on Open Frameworks?

Try it, it works!

Via:[sparkfun]

### Community is about bringing people in: welcome Arduteka

Monday, April 16th, 2012

During the last year we have seen our community growing at a tremendous pace. This has its pros and cons. More people means more people to help out, but also more work in moderating the forum. We want to be inclusive at we work of supporting multi-language forum topics, as well as the multi-language IDE. The way this is done is through delegation and we have been welcoming new moderators recently who, by the way, are making a terrific job and are pushing the team in improving the Database’s response times with very creative solutions.

On top of that, we are opening the blog to guest bloggers. Davide Gomba, head of Officine Arduino Torino, is going to be coordinating the group of bloggers that will be posting contents to the Arduino Official site.

When it comes to the Spanish community, we have been looking at the work made by Arduteka (arduteka.com) in Zaragoza, Spain. They have been running a forum for some time and are very engaged in reaching people speaking Spanish from all around the world. Therefore we have decided to invite Pablo and his partner Carlos to become both moderators in our Forum and guest bloggers to write about projects made with Arduino as well as tutorials in Spanish and reviews of different Arduino-related products.

In this way we are not just enlarging our group of moderators, but bringing people with opinions and a strong interest in getting things done the right way. As Pablo and Carlos cannot be attending two forums at once, we will do our best to import the most informative of the messages in their current forum to also help their current user base feel more comfortable with the migration.

Here a quote from Arduteka’s announcement taken from their website (in Spanish):

Cuando llevábamos apenas dos meses, nos pedisteis la incorporación de un foro en que pudiéramos “conocernos” plantear proyectos, quedadas, dudas y demás…

De nuevo tuvo gran éxito entre vosotros incrementando aún más el flujo de visitas (hasta el punto que nuestro servidor esta cuasi saturado) y generando gran unión entre la comunidad, con una gran comunicación, llegando a diferentes países de habla hispana como España, Venezuela, México o Colombia

Pues bien amigos, todo este trabajo y esfuerzo no ha caído en saco roto para el equipo oficial de Arduino y a partir de ahora colaboraremos activamente en la difusión y organización de contenido en castellano en Arduino.cc!

El primer paso, será la unión de este foro con el oficial de Arduino.cc de manera que juntemos esfuerzos en la unión y difusión de la comunidad de habla hispana, uniremos experiencias y daremos forma al foro entre el moderador actual Coleoptero y yo.

### ArtNet library for Arduino

Thursday, March 8th, 2012

If you’re into interactive lighting  you’ll be familiar with protocols like DMX and ArtNet.

VVVV user “karistouf” has written a piece of code for the  Ethernet shield that allows your Arduino to communicate over an ArtNet network.

Features are:

ArtNet sender: you can send artnet data from your device over network, for sensors and buttons this will be easier than all osc or firmata solutions.

enjoy http://bit.ly/xwnsTc

### Social Fuel For Your Car: Travel With A Little Help From Your Friends

Thursday, February 23rd, 2012

Impressing automotive hacking lets this FIAT car moving by the number of “like” from the Guarana Antarctica Facebook Fan Page. The advertising idea is simple: let the social audience support this Sau Paulo to Salvador trip to reach the Carnivalby commenting / “liking” the page. The onboard Arduino ADK (connected to a tablet and the internet) allows the car going on by a certain amount of meters (apparently one “like” is 10 meters, while each comment lets the car go ahead for 20 meters).

### Control An LCD with a 595 Shift Register

Monday, January 16th, 2012

[Carlo Denaro] is sharing a smart solution to save digital pins while controlling an LCD, using Shift Register 74HC595. A simple yet useful project with skecth&libraries, datasheets and Fritzing schematics.

via [grayhats.org]

### ITP Winter Show

Sunday, December 18th, 2011

For the past couple weeks I’ve been wrapped up in finals at ITP, and in producing the ITP winter show 2011, along with my colleague Marianne Petit. I lost count of all the great Arduino projects in the show, but probably somewhere around 70% of the 110 projects in the show have a little blue board somewhere inside. If you’re in New York City today or tomorrow, come on down, it’s a good time, with lots of creative projects covering a range of application areas from healthcare  to fashion to video sculpture to politics, data visualization, assistive technologies, and more.

Here are a few selected at random that are using Arduino:

• FOLKBOX is a device that allows a person with limited left-hand dexterity to play the acoustic guitar, by Justin Lange.
• Glute-o-licious is a virtual cycling experience in which the user controls the speed of a first-person video by riding a stationary bike, by Courtney Mitchell
• Kinetic Sculpture 5 is composed of five pendulums that the viewer can control. Simply wave your hand over the sensors to “play” the piece, by Ben Light
• Metrochange is a charity donation platform using New York City subway cards, by Genevieve Hoffman, Paul May, and Stepan Boltalin
• RFID Beat Box is an instrument that lets you create and play your own music using RFID tags, by Danne Woo and Stefanie Kleinman
• Nostalgia is an interactive art piece where you can view a memory of the artist’s past by typing, by Yoonjo Choi
Here is a full list of the projects. Come and see them all!

### Connecting your Arduino to AIR using an AIR Native Extension

Monday, December 5th, 2011

[quetwo] aka Nicholas Kwiatkowski developed a native interface to receive serial data in Flash.

[...]  The AIR Native Extension (ANE) is a C based .DLL / .framework for the Windows/Mac platforms that allows AIR to essentially open a COM port.  I wrote it in a way that is supposed to emulate the functions of the flash.net.Socket library that is included in the AIR runtime.  I’ve posted the entire project, including the source code and final binaries on Google Code at http://code.google.com/p/as3-arduino-connector/

### Matatino Lets Arduino Connect To Your Mac Apps

Tuesday, November 8th, 2011

[Robotgrrl] shared a super-userful way to import Arduino Data to  Mac applications, with tutorials and examples.

We created Matatino, a framework that lets you communicate between your Mac applications and your Arduino, You can follow our tutorials to get started with adding Matatino to your project. To see Matatino in action, check out Meters for Arduino. We will be adding more examples, libraries and tutorials for the Android ADK, iOS Redpark Serial Cable, Processing and OpenFrameworks in the future! You can stay informed about updates through RobotGrrl’s blog Apps4Arduino category feed.

via [RobotGrrl/Apps4Arduino]

### Ball of Dub Keeps Audio in Your Hands

Tuesday, November 1st, 2011

Ball of Dub from LUSTlab on Vimeo.

Accelerometer to Renoise via OSC  to control trippy and dubby sounds.

[Lizzie] from LustLab sent in her Ball of Dub that turns a few accelerometer and a digital audio workstation and turns everything into an aural experience of wubs and dubs. The Ball of Dub can turn just about anything into dubstep, and does so with a fairly interesting user interface.

There isn’t a build log for the Ball of Dub, but  the folks at LustLab did send in a basic overview of her project. Inside the ball, there’s a Razor IMU from Sparkfun that is attached to the ever-popular XBee wireless transceiver. A tiny program on an Arduino calibrates the gyroscope and accelerometer and sends that data to the DAW at 50Hz.

The host computer is running Renoise, a very popular tracker that can accept MIDI and OSC input. A Processing app parses the ball spin, free fall and impact, averages them over a period of time, and pipes that into the OSC input of Renoise. In [Lizzie]‘s video, the ball spin is sent to a low-pass filter on the baseline track, and the average impact is applied to the vocal track.

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