One of the exciting new features of the Arduino Leonardo is its ability to act as a USB human interface device like a keyboard or mouse. This can make interfacing hardware projects with third-party software much easier. For example, if you want to build a physical button to go backwards in your web browsing history, you can have the Arduino send your browser’s keyboard command for back each time you hit the button. But if you have an Arduino Uno, you’re not out of luck.

Michael Mitchell recently shared his tutorial on how to use DFU Programmer to update the firmware on the Atmega8U2, which, according to the Arduino documentation, “acts as a bridge between the computer’s USB port and the main processor’s serial port” on the Uno. Michael also points out that you’ll need to make a slight hardware modification to the board if you have the DIP version of the Uno board—SMD Uno owners can keep their soldering irons holstered for this one. Michael demos his tutorial with a volume controller for his Ubuntu box and naturally he offers all the code you need to make your own.

More:
The AWESOME Button: A Made-to-Measure USB Input Device

Moppy is a musical floppy controller program. By using an Arduino UNO as a translator, you can command an array of floppy drives with a musical keyboard. The head on each floppy drive is controlled by a stepper motor which will put out sounds when driven at the right frequency.

Here is a link to the Moppy project page.

Enjoy your musical floppy drives!

Via:[Hackaday]

Get ready to join a band. Just follow the guide over at the Moppy project page and you’ll have your very own floppy drive instrument.

The name is a mashup between Musical and Floppy. By using an Arduino UNO as a translator, you can command an array of floppy drives with a musical keyboard (think piano). The head on each floppy drive is controlled by a stepper motor which will put out some sweet sounds if driven at just the right frequency. The lower notes tend to fair a bit better than the high range. One great example of this is the Imperial March theme as heard after the break.

Once you get the base system up and running, it’s time to think of some alternate interfaces. Sure, you can obvious things like toy keyboards. But wouldn’t it be more fun to make it fruit controlled?

Everyday, a lot of spam inevitably arrives to our mailboxes, forcing us to lose time in discerning fake emails from good ones, so everyone agrees on saying that spam is frustrating and completely useless.

This is almost true, since Varvara Guljajeva and Mar Canet Sola have taken advantage of spam coming from the Internet (more specifically, those messages “donated” by Eindhoven people) to make a very creative art project: first, they have recycled spam to algoritmically create poetry and, then, they have sent the result to a properly Arduino-hacked knitting machine (Arduino has been used to emulate the typing of the commands required to load the pattern).

From the authors:

Concerning the concept, we are interested in bringing together digital culture and traditional handicraft. To be more specific, the idea is to experiment with the form and meaning of SPAM. We turn SPAM into a romantic, funny or even sarcastic poetry and present it in unusual tangible form as knitted garment. To be more specific, we call final result dysfunctional wearable, because it reminds a sweater but is not really a one. Like SPAM, our dysfunctional wearable does not have a purpose.

The result is really impressive and it has been presented at two exhibitions, at Eindhoven and Malmö. Several pictures of the events can be found here. More information about the project can be found at Mar and Varvara‘s homepages.

[Via: Mar's Homepage and Varvara's Homepage]

The litany of exciting Maker Faire products continues with MaKey MaKey, a device that turns anything capable of conducting electricity into a controller. Developed by MIT Media Lab students Jay Silver and Eric Rosenbaum, you simply run a bulldog clip from the board to an object and hold a connecting wire in your hand. Connecting over USB, it's entirely programming-free, but if you find your interest piqued, you can flip the board over to use the Arduino module baked into the hardware. It's already surpassed its original $25,000 Kickstarter goal and when the run begins, you'll be able to pick up everything you need for just $35 -- but if you can't wait that long, head on down to the Bay Area this weekend.

[Thanks, Ryan]

Continue reading MaKey, MaKey turns the whole world into a keyboard

MaKey, MaKey turns the whole world into a keyboard originally appeared on Engadget on Fri, 18 May 2012 01:14:00 EST. Please see our terms for use of feeds.

Arduteka lanza su último tutorial!

En él nos descubre el nuevo módulo 3G para Arduino de Cooking Hacks con el que podremos construir una divertida alarma que nos enviará la foto de nuestro intruso directamente a nuestro correo, además de avisarnos por un mensaje sms a nuestro teléfono móvil sin necesidad de tener conectado nuestro Arduino a internet constantemente, pues lo hace todo a través de la red móvil.

Vamos a construirnos una alarma totalmente casera, a través del sensor de ultrasonidos, escanearemos continuamente el espacio situado enfrente suyo con un radio aproximado de 30º, cuando algún objeto o persona se sitúe en su campo de actuación a una distancia inferior a la que establezcamos, haremos sonar una alarma, tomaremos una fotografía, el Led RGB que antes estaba verde, pasará a color azul y daremos 10 segundos para poder desactivar la alarma a través de nuestro teclado matricial, si la desactivamos, volverá de nuevo a escanear el campo, pero si no!! Reproducirá un sonido contundente y se dispondrá a mandarnos un sms a nuestro teléfono móvil y la fotografía a nuestro correo electrónico.

Via:[Arduteka]