Proximity Sensor for the Visually Handicapped

Motorola Flash Innovation 2003 Design Contest Distinctive Merit Hock Wei SoonSingapore Abstract The proximity sensor which was built using ultrasonic technology and the 68HC908QT helps the visually handicapped detect obstacles. The small sensor requires a 9-V battery. It can detect obstacles farther than 2 m away. Supporting Files Contest EndedJune 30 2003.

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