This is a Personal Sonar System or the Visually Impaired Person for HaD 2015 Contest Entry.
Ver 0.0 Rel 0/ Initial PCB release - first layout/non-tested
Ver 0.0 Rel 0.1/ Initial PCB release - bugs fixed (so far) against Rel 0.0
Eagle PCB/ Eagle CAD files Sketch3D/ Sketch3D model LTSpice/ Linear Tech Spice Simulation analog file
Hackaday project page is at https://hackaday.io/project/5903-sonar-for-the-visually-impaired
This work is licensed under a Creative Commons Attribution- NonCommercial-ShareAlike 4.0 International License.
The full detail of this license is available at: http://creativecommons.org/licenses/by-nc-sa/4.0/
Please contact me via hackaday.io for commercial inquiries.