v1.3 - Motion stability update
General purpose of this update is to reduce the motion jitter.
- added deadzone to gyro (angular speed) readings (0.5 deg/s)
- added minimum change in acceleration (~0.0078g)
- because of the way the HID device is read, once in a while some frames are skipped and lost, this update adds replication of frames in place of lost ones to provide a client with constant packet frequency
- probably the main culprit - sending repeated packets after read fail and HID file reopen - is fixed (rather worked around) in this update.