For the physical feedback, Denver has made some vibrating boxes that you put in your pockets. An Arduino polls the ultrasonic sensors and provides feedback via the boxes. This completely frees up the ...

The enterprising quartet has designed a walking stick for the visually impaired, fitted with sensors and e-chips to help its holder wade through the obstacles ahead and walk with their heads high ...

Blind people can now ride a bicycle! Scientists have developed a bicycle that uses ultrasonic sensors to detect obstacles in the path — and it can help blind and partially sighted people live ...