HOW TO - Ultrasonic bat goggles



Suneth Attygalle made a pair of sight-blocking goggles that help you echolocate with the use of an ultrasonic rangefinder sensor. He used an Atmega8 chip running an Arduino bootloader, and some welding goggles. He even made a bat goggle instructable so you can make them yourself including source code and wiring diagram.

Posted by Becky Stern | May 27, 2008 07:00 PM
Arduino, DIY Projects, Electronics, Instructables | Permalink | Comments (3) | Email This | Bookmark and Share | Digg this!

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Posted by: mal on May 27, 2008 at 10:47 PM

"My eyes! The goggles do nothing!"


Posted by: Casandro on May 27, 2008 at 11:26 PM

Could be enhanced with microcomputers

It would be enhanced if you had microcomputers around. You could send out chirps and use cross correlation to determine the impulse response of the channel. Those ultrasonic transmitters only have a bandwidth of about 1 kHz. It should be possible to use an ATMega8 processor for the cross correlation. With smart hardware this might even be done with very little hardware.


Posted by: the boot on May 28, 2008 at 4:04 AM

Good for visually impaired people.

People that can't see well enough to move around would benefit from this.


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