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Published on: August 2, 2013 / Comments: None

A handheld distance notifier for seeing impared

A couple of guys from Sulatan Qaboos University made a small handheld aide for blind people.  It uses an ultrasonic range finder, and has a headphone jack for audible tones and a vibration motor when there is no headset present .  The interface consists of volume buttons and a multipurpose button.   They’re using a ATmega8 and have their schematic up here.

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