restores audio test
testing fill buffer from sd
added structs for sd format
Merge branch 'develop' into feature/read-audio-from-sd
succeds to playback wav from sd
makes changes to protocol, still, unfinished
Merge branch 'feature/read-audio-from-sd' into develop
fixs several bugs, but not all, related to the protocol
Merge branch 'develop' of github.com:diegodorado/tpo_info2 into develop
adds a readme file