BWT61 | manual v0707 | http://wiki.wit-motion.com/english
2.4.6 Static Threshold
Static threshold: When the module is stationary, the angular velocity measured
by the gyro chip changes slightly. The function of the static threshold is that
when the angular velocity is less than the threshold, the module output angular
velocity is 0.
Setting method:
Click the "Still Threshold" option in the configuration bar of the PC software to
set the threshold. The module default is 0.122°/ s.