While working with tactile displays I continued to consider what types of senses I could send to my body. Thinking about birds and my own lack of city sense I picked compass heading. I believe the less processing you need to do to understand consciously the sensations you feel, the more rapidly it will become background knowledge so the most direct analog to compass sense would be to vibrate my head north. Since my head has a full 360 degrees. I used the HMC6343, an arduino, 14 pager motors and a decoder/driver circuit I devised to run it.
Here are some pictures of the construction and the final headband:
Here’s the code used to communicate between the decoder and the compass: compassaccess.pde