Hasta La Gadget!

Sure, when tinkerer Caleb Kraft found out that pressure switches marketed at the disabled were massively overpriced, he got mad like anybody else. But then he decided to get even the best way he knew how: by building his own, and posting the plans for all to follow on Hack a Day for free. The project came about via a kid with muscular dystrophy named Thomas, who enjoyed Minecraft but may eventually lose the ability to hold a controller or use a mouse and keyboard. Caleb’s idea was to build low-pressure switches using a 3D printer and simply map them to the Minecraft keyboard and mouse commands using a $20 Teensy board. He posted his plans online, but since he feels they could be improved on, also created a site called the Controller Project (see the More Coverage link). From there, those in need of a custom device can make a request, other modders can post their own plans and builders can use them to make controllers for donation. Since more is always merrier for such things, if you have those skills or know someone who needs them, hit the source for more info.

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Source: Hack a day

There’s a lot of research to help the spinal cord or stroke-injured become more self-sufficient, but it often takes some exotic paraphernalia. To buck that trend, scientists from Imperial College London showed that subjects could perform relatively hard tasks like writing messages and playing Pong using eye movement — with a mere $35-worth of parts. They even showed how well the system worked, with subjects scoring within 20 percent of an able-bodied person after a scant 10 minutes of practice. The tracker works with two video console cameras and a pair of eyeglasses that, after calibration, can precisely track the pupils — allowing them to control a cursor or move a paddle. The researchers also figured out how to “click” the eye-mouse by winking, and can even use more precise adjustments to calculate gaze depth — meaning subjects will be able to perform more complex tasks in the future, like guide a motorized wheelchair. While by no means the first eye-tracking system we’ve seen, it’s by far the most economical. Check the video after the break to see how it works.

Continue reading Researchers use off-the-shelf parts to let you write emails with your eyes (video)

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Researchers use off-the-shelf parts to let you write emails with your eyes (video) originally appeared on Engadget on Fri, 13 Jul 2012 08:52:00 EDT. Please see our terms for use of feeds.

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