Smart walking stick uses ultrasound to guide the blind

The video tutorial explains the Smart Cane, a device designed to assist visually impaired individuals in navigating busy streets. It uses ultrasound waves to detect obstacles by analyzing echoes from nearby objects, offering a significant advantage over regular canes by identifying obstacles between knee and head height. The Smart Cane provides feedback through vibrations to help users avoid collisions.

What new insight or understanding did you gain from this video?