Added data captures with blueterm that show several motion captures where I sort of punch the air with the device in hand
Bug fix - need to wait until last byte is finished transmitting or we can't be sure it will make it out the serial port properly (depends upon what happens to uart clock when function returns!
cleaned up comments, added motion detect for 200 samples, changed accel to +/- 16g.
Added picture for one punch and some data. Modified to have motion detection faster (35ms vs 80ms)