Anirudh Sharma, a student of Informatics Engineering at the Rajasthan Technical University, has designed Le Chal (Hindi for 'Take Along”) to assist the blind and visually impaired to navigate around.  By pairing Le Chal with an Android smartphone with GPS, the user can speak a destination into Google maps and then manoeuvre via Google's navigation. Four small vibration motors embedded in the front, left, right and back of the shoe mildly vibrate to indicate which direction the person should be going in. As they get closer, the vibrations will get stronger to indicate closeness to their destination.
The Gadgeteer, Le Chal Haptic Feedback Shoe for the Blind
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