Sonar For The Blind using Arduino

This is a project I’m calling Tacit. No, I didn’t bother making an awkward backronym for it, it just seemed like an appropriate name that’s a lot shorter (though less descriptive) than “Hand-Mounted Haptic Feedback Sonar Obstacle Avoidance Asstance Device”.  It measures the distance to things and translates that into pressure on the wrist. It’s wrist mounted and senses objects from about 1 inch (2 cm) to 10 ...

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