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Echo locator

402echoHow could you build a device that uses sound to indicate the distance to the nearest object? For example, as an aid for a person with vision impairment.

Other than using the Ultrasound Sensor, are there any other sensors that could be used to measure distance?

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CEEO

The Tufts Center for Engineering Education and Outreach (CEEO) in Boston, Massachusetts, is dedicated to improving engineering education in the classroom, from Kindergarten to college. The Center houses faculty, staff, and graduate students from engineering disciplines and the education department.
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