In his blog, Charalampos describes his experience with SeeedStudio’s Grove Ear-clip Heart Rate sensor and Cosm (former Pachube) cloud service. The employed sensor is quite cheap and can detect heart pulses from the ear lobe, by measuring the infra-red light reflected by the tissue and by checking for intensity variations.
By connecting this sensor with an ADK board and, in turn, with an Android smartphone, Charalampos implemented a portable heart-rate tracker, which is used to send the recorded data to Cosm cloud service.
There are people who use the Arduino for some serious electronics related stuff.
Then, there are folks who use it just for fun. Alan Chatham and his team over at UnoJoy have developed a concept for Arduino Uno based USB Controllers.
Here is an excerpt of our interview with Alan:
Me: What made you choose the Arduino Uno as the heart of the controller? There are many development boards available which incorporate an ATmega8U2/16U2 or even 32U2.
Alan: This is easy – everyone loves Arduino! It comes down to ease of use and reach. Our primary goal with this project is to make a tool that is both easy to use and accessible. There’s lots of code out there to make joysticks with other chips, but all the Atmel USB chips are surface-mount, and they all need a whole big toolchain to use. Plus, USB is super-complicated, and we want to encourage people, even non-technical ones, to spend their time thinking up really sweet new ways to play games, not trying to figure out what an HID descriptor is for. On the reach side of things, Arduino is a perfect platform – even those of us that love our inline assembly and fuse settings tend to have an Arduino around for quick prototyping, and of course, Arduino’s a great platform for students and designers.
Me: Any problems that you faced while developing the prototype?
Alan: I think the biggest challenge we faced was to make it much easier for non-experts to do some more complicated things, like re-flash the ATmega8u2 on the Arduino. Let’s face it, any instructions that open up with ‘First, install XCode’ aren’t exactly user-friendly. In that vein, I put together some simple one-click batch files for installing the appropriate drivers on Windows and OSX, as well as ones for reflashing the ATmega8u2 chip between Arduino and UnoJoy firmwares. It’s still not as simple as I’d like, so if anyone out there is handy with basic OSX GUI application programming, or the program installation chain on Windows, drop me a line!
In the end, we’re hoping that our code and examples can inspire other designers and builders and gamers to make some really awesome controllers. If they do, I of course encourage them to send their pictures and videos our way, at unojoy.tumblr.com!
Now, you too can make yourself a USB Joystick/ Gamepad/ Controller by choosing any form of input that the Arduino boards can understand. The source code and all the necessary download files are available at Google Code. Don’t forget to check out the Controller for Gran Turismo:
Thank you Alan for sharing a wonderful project with us.
[Matt Leggett] designed a jacket that is telling you whether you are able to drive or not:
Included in the jacket are an Arduino microprocessor, an alcohol sensor, and a series of LED’s that “provide an elegant solution to the drink driving problem.” A breathalyzer located in the pocket of the jacket, analyses the sample and then lights, that are stitched into the forearm, indicate how drunk you are. The LED lights glow when alcohol is detected and the brighter they glow, the worse you are.
Ever wanted to take control of your (or better, sombody else’s) body via electrical signals, University of Tokyo’s research exprerimented about this.
The experimental device is actually called the PossessedHand, and controls your digits by shooting small electric currents into your wrist via electrodes strapped to your forearm. The PossessedHand runs on an Arduino micro-controller, and can auto calibrate itself to make sure it is twitching the corrects fingers and muscles inside your hand.
The Keyglove is a portable Arduino-powered glove that uses touch combinations to generate keyboard and mouse control codes using only one hand. Once learned, the glove can easily be used without looking, making it perfect for embedded/wearable environments. The glove is thin and light, built to allow other activities (such as writing or driving) without being in the way.
nice MEGA-based project. Have a look at the similar devices page to have a nice compairason of similar project online with different hardware solutions.
As you may have read, Massimo was invited to talk and run a workshop at Tecarteco (a festival about Technology, Art and Ecology in Lugano, Switzerland) . Everything was great, and we had an amazing time with the guys from the workshop! The first big surprise was that David Cuartielles joined us for the whole week, and for the workshop as well. The second surprise was this improvised interview to Daito Manabe that started as a joke but with very interesting questions (followed but very interesting answers).