arduino

Raspberry Pi-powers DIY autonomous underwater vehicle

It seems creativity knows no bounds when it comes to the Raspberry Pi. The $25 credit card-size computer has turned mixologist, powered an R2-D2 toy robot, and was even sent into near space.

Now, thanks to a group of National University of Singapore engineering undergraduates, the Raspberry Pi has also conquered water. Dubbed the Coconut Pi, the autonomous underwater vehicle (AUV) uses the Raspberry Pi for memory-intensive functions, while it relies on Arduino for precise control. … Read more

The 404 1,245: Where we print with fire (podcast)

Leaked from today's 404 episode:

- "FireWriter" is a far sexier way to describe an inkjet printer.

- What do gangsters do on the Internet?

- New Brad Paisley, LL Cool J song "Accidental Racist" sparks controversy.

Bathroom break video: Slacktory Supercut: The best fake Web sites from TV shows.… Read more

Shred your e-mails with a typing guitar

Having already conquered the complex process of separating the cream from an Oreo cookie, physicist David Neevel has turned his inventive eye to the issue of typing on a computer while shredding on a guitar.

Neevel connected together a Flying V guitar, an Arduino, a custom relay board, and a Roland GR-33 guitar synthesizer to turn the notes played on a guitar into a working keyboard recognized by his laptop as a typing input device. The Email Guitar lets the user rock out while getting work done.… Read more

Tweet-to-shoot paintball gun makes social media messy

An artist already created a Twitter-controlled cockroach. If that was too squicky for you, then maybe you'll feel better about commanding Paintbot instead. Paintbot from iStrategyLabs is a Twitter-controlled paintball gun. Tweet the right hashtag and enjoy the knowledge that you've just made a mess you don't have to clean up.

You can get in on the paintball action when the gun is online by tweeting with the hashtag #islpaint. Unfortunately, Paintbot has to be taken offline periodically for clean-up. It has a tendency to splatter.

The target is an unfortunate whiteboard which just stands there and takes the abuse without complaint. It does have an illustration on it that sums up its futility of existence as a target for tweeting paintball shooters.… Read more

Tap Twitter, control a cockroach

Next time you see a cockroach, don't scurry away faster than it can flee. In fact, if you're a lover of the weirder side of life, the intrusive insect could represent one heck of a science project.

For example, artist Brittany Ransom created Twitter Roach -- a discoid cockroach that can be controlled through tweets that it receives on the popular microblogging service. … Read more

Real-life Pixar lamp wants to play hide-and-seek

When I see a cute critter like Fizzgig or an Ewok in a movie, I want to take it home with me. I get the same feeling when I see Pixar's sweet Luxo Jr. lamp mascot. It's like a little metal puppy you want to hold on your lap and take care of.

The sprightly lamp has now hopped out of the screen and into the real world thanks to a project created at the Victoria University of Wellington in New Zealand by Adam Ben-Dror, Joss Doggett, and Shanshan Zhou. This lamp is black, rather than white like Luxo Jr. The project is called Pinokio and the lamp is imaginatively named "Lamp."

Pinokio uses six servos, a Webcam, and Arduino to track human faces, play hide-and-seek, hear sounds, and try really hard to get your attention.… Read more

Beer can keyboard is perfect for drunken Facebook updates

Don't drink and text. Don't drunk dial your ex. That's all good advice, but it will be extremely hard to follow if you happen to be the owner of the Beer Keyboard.

The Beer Keyboard is exactly what it sounds like. It uses beer cans in place of keys. Just gently press down on a can and you trigger the proper letter or number on a computer.

The keyboard is made from 44 beer cans and an Arduino-powered touch capacitive controller. It was hatched by Prague-based brewer Staropramen and Robofun Create, a company dedicated to building unusual tech items.… Read more

Recycled cell phones take wing as robotic birds

A very odd flock of birds landed in Albuquerque, N.M., this past week. There wasn't a feather in sight as four winged creatures sat on bare branches, flashing their eyes and lifting their wings. These art objects are fashioned entirely from recycled phone parts.

Escape, an installation piece by U.K. artists Neil Mendoza and Anthony Goh, turns unremarkable phone scrap into curious and engaging little birds. Each bird contains an Arduino controller.

When hooked up to the cell network in Europe, the birds can take and make phone calls. Here in New Mexico, they are reprogrammed to react to the proximity of people approaching them. … Read more

GPS shoes give directions on top of your toes

GPS shoes already exist, but they've been more about tracking the wearer than giving directions. A project by U.K. artist Dominic Wilcox solves that oversight by putting directions right at the tips of your toes.

The prototype leather shoes were made by hand in old-world style by Stamp Shoes, but with some decidedly new-world technology tucked inside courtesy of interactive arts and technology expert Becky Stewart. … Read more

These light switches are sure to turn you on

The mundane task of turning on the lights generally involves a simple flick of the switch, but Norwegian designer Stian Korntved Ruud thinks it could get a lot more interesting.

Korntved Ruud, who graduated last year with a master's in industrial design from the Oslo School of Architecture and Design, created "Circuit breaker," a series of five switches that force users to interact with the panel and thus present new ways of turning the lights on.… Read more