Hand-Mounted Sonar For the Blind 98
GeekTech.in writes "The Tacit, a wrist-mounted sonar device with haptic feedback, is like strapping a bat to your wrist to help you see. It makes use of two sonar ping sensors to measure the distance to the nearest obstacle. The relative distance to an object is then fed back to the user using two servos which apply pressure to the back of the wrist."
Hot point which summary doesn't mention.. (Score:5, Informative)
And it should've, damnit.
Keep reading for more information, build notes, parts list, schematics, and code. ...
Important Note #2: The circuit and software is released under a Creative Commons BY-NC-SA license, which I think of as a "Don't be a jerk" license. In short: Make it, learn from it, teach it, improve it, modify it. Just share what you do, give credit, and don't sell any without contacting me first.
PARTS LIST?!? CIRCUIT INFO?!? WOOOT! Now this looks like a damn fun toy.
human echolocation (Score:4, Informative)
There's even a school that helps teach echolocation to blind people [worldacces...eblind.org], based in California, I believe. Wikipedia has a basic writeup on it [wikipedia.org].
Seriously it's pretty amazing to think that a human can develop echolocation ability. But we can.