UAV Drone
Airborne avionics platform for drone system identification and control
...Control of the drone is provided through user developed Control law based on critical aircraft parameters to 16 configurable PWM outputs to servos or motors controllers.
This UAV drone hardware senses critical orientation parameters through a MPU-9250 9 Degree of Freedom sensor. This sensor measures 3-axis Acceleration Nx, Ny, & Nz, Compass Mx, My, Mz, and Gyroscopic rate P, Q, & R. A sensor fusion and numeric integration algorithm then combines these 9 parameters to 4 Euler parameters/Quaternions. An Euler body 1-2-3 sequence relates these to Roll/Pitch/Yaw. Air data is measured through altimeter and differential pressures. GPS measures position and track.