A search for this product revealed that it has not been discussed before on diydrones.  The FY-901 is an inertial stabilization controller for your multi-rotor aircraft developed by FeiyuTech.…

The FY-90 Controller is purpose built for Quadcopter use.



The Attitude flight stabilization system (AFSS), which is the heart of the FY-90Q, is an integrated 3-axis gyroscope and 3-axis accelerometer. AFSS forms a comprehensive inertial based navigation platform that calculates 3D flight attitude using proprietary FeiYu Tech algorithms.



When in full balance mode, the…