There are no real engineering new's on this project.
But I wrote a organisation for blind people to find a person who could wear this anklet and give me some test feedback.
So, I gifted my anklet away...
The results are: While he was walking he has to concentrate on his blindman's stick and couldn't "read" the information from the anklet at the same time. But he managed this with short stops to get the compass information. He find this additional information really interesting.
It feels good to help people in there difficult situations!