Hasta La Gadget!

Cut-rate, webcam-based 3D scanner coming soon to a MakerBot store near you originally appeared on Engadget on Mon, 09 Aug 2010 11:59:00 EDT. Please see our terms for use of feeds.

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If you’re not sold on the iPad and are tired of waiting for tablets from other PC makers to show up, try getting your hands dirty with a tablet you can build on your own.

Liquidware, an open source hardware company, is selling a $400 tablet starter kit. The DIY tablet targets developers who want to create a tablet of their dreams or write specialized software applications.

“The Beagle tablet is a portable modular open source handheld computer,” says Justin Huynh, director of product development at Liquidware. “It’s all about customizability and embedded development.”

The tablet kit contains a 4.3-inch OLED touchscreen that mounts directly on a BeagleBoard. The BeagleBoard is a single board computer from Texas Instruments that comes with a 1-GHz processor. There’s also a battery module and a 4-GB pre-formatted SD card to boot Angstrom Linux. But users can also run the Android operating system on it, says Huynh.

“Everything is modular and snaps on or mounts directly on a board so you have a very compact tablet-like device,” he says.

Since Apple iPad’s debut in April, tablets’ popularity has surged. Apple sold 2 million iPads in just 60 days of the product’s launch. That has left other companies scrambling to introduce tablets of their own. Both Samsung and Research In Motion have tablets in development. In the U.K., Dell has already introduced its first tablet called Streak, a 5-inch PSP-sized device that can also make phone calls.

But those gadgets have little appeal for tinkerers, says Huynh.

“With the iPad, you would have a hard time hacking it to read from a specialized sensor such as a temperature sensor or add your own custom hardware,” he says. “The Beagle tablet is all about innovation.”

Since the Beagle tablet doesn’t have any storage beyond the SD card, it is extremely lightweight, weighing just about 8 ounces. Users can increase the size of the SD card or plug in an external hard drive or a solid-state disk through the on-board USB port.

The battery life of the Beagle tablet can vary from three hours to six hours depending on the application, says Hyunh.

The Beagle tablet is a lot of work since you would have to load everything from an OS to different applications. But once you get it going, it could be a better conversation starter than the iPad.

See Also:

• BeagleBoard Gives New Power to Open Source Gadgets
• Build It. Share It. Profit. Can Open Source Hardware Work?
• Open Source Hardware Hackers Start P2P Bank
• Open Source Hardware Project RepRap Creates its First Circuit
• Hardware Hackers Create a Modular Motherboard

Photo: Liquidware

DIY weaponry gets more lethal with each passing year; where once we were content with a simple foam missile launcher, technology has progressed such that our automated turrets now spew screwdriver bits, airsoft and paintballs. As progress forges ahead, two engineering students at the University of Arkansas have added injury to insult with this four-stage DIY coilgun. Using an Arduino microcontroller to actuate the firing mechanism and steer the monstrous wooden frame, they nimbly control the badass kit with an iDevice over WiFi, and line up targets using a repurposed PlayStation Eye webcam. While we’d of course prefer to have our phone SSH into the gun over 3G, we’re not going to argue with success. We’d like to keep our lungs un-perforated, thank you very much. See it in action after the break.

Continue reading Students accelerate cubicle arms race with PlayStation Eye-tracked, iPhone-guided coilgun (video)

Students accelerate cubicle arms race with PlayStation Eye-tracked, iPhone-guided coilgun (video) originally appeared on Engadget on Wed, 19 May 2010 07:37:00 EDT. Please see our terms for use of feeds.

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Sure, Project Natal is the hotness and a little bird tells us PlayStation Move is pretty bodacious, but you don’t have to buy a fancy game console to sooth your motion-tracking blues. When students at Cornell University wanted to play Human Tetris (and ace a final project to boot), they taught a 20Mhz, 8-bit microcontroller how to follow their moves. Combined with an NTSC camera, the resulting system can display a 39 x 60 pixel space at 24 frames per second, apparently enough to slot your body into some grooves — and as you’ll see in videos after the break, it plays a mean game of Breakout, too. Full codebase and plans to build your own at the source link. Eat your heart out, geeks.

Continue reading Students program Human Tetris into 8-bit microcontroller, give away schematics for free (video)

Students program Human Tetris into 8-bit microcontroller, give away schematics for free (video) originally appeared on Engadget on Sun, 16 May 2010 07:04:00 EST. Please see our terms for use of feeds.

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There were certainly a couple whiz kids at Intel’s International Science and Engineering Fair this year, but high school senior John Hinckel’s a regular MacGyver: he built a wheelchair remote control out of a couple sheets of transparent plastic, four sliding furniture rails and some string. A Nintendo Wiimote goes in your hat and tells the whole system what to do — simply tilt your head in any direction, and accelerometer readings are sent over Bluetooth. The receiving laptop activates microcontrollers, directing servo motors to pull the strings, and acrylic gates push the joystick accordingly to steer your vehicle. We tried on the headset for ourselves and came away fairly impressed — it’s no mind control, but for $534 in parts, it just might do. Apparently, we weren’t the only ones who thought so, as patents are pending, and a manufacturer of wheelchair control systems has already expressed interest in commercializing the idea. See the young inventor show it off after the break.

Continue reading Student moves quadriplegics with Wiimote wheelchair control (video)

Student moves quadriplegics with Wiimote wheelchair control (video) originally appeared on Engadget on Fri, 14 May 2010 08:51:00 EST. Please see our terms for use of feeds.

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