Probably because it's known as an audio connector, unfortunately. Still, there are other uses: http://web.eecs.umich.edu/~prabal/projects/hijack/ http://web.ee

Probably because it's known as an audio connector, unfortunately. Still, there are other uses: http://web.eecs.umich.edu/~prabal/projects/hijack/ http://web.eecs.umich.edu/~prabal/projects/hijack/ 8.5kb/s isn't great, but for low-resolution data sampling it's not bad. (I assume.)