Neil Movva created this wearable project to assist the blind:
Pathfinder – Haptic Navigation
wearable device that translates distance into haptic feedback. Users just wear the wristband (or glove) and point at objects up to 500 centimeters away, and feel gentle pulses at their fingertips corresponding to the object’s distance
The design files and source code are available on GitHub:
neilmovva
OSH Park 
[…] See the full project here at Hackaday.io and hat-tip to Drew Fustini for blogging this at OSH Park blog reminding us about this […]
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