yeah, its totally going to be a great boon for visually impaired community, specially when these sensors can be made a bit smaller, and one problem is worked ou

yeah, its totally going to be a great boon for visually impaired community, specially when these sensors can be made a bit smaller, and one problem is worked out, that is, in a crowd, it may go crazy, so this a lot of field tests away. 7 sensors only, is a great achievement. Also, they would have to work out how to make them waterproof, increase the range to avoid potholes on the road, and vibration setting adjustment.