Test MC_09 - VIO (Visual-Inertial Odometry) 
Objective 
Test that external vision (VIO) works as expected
Preflight 
Disconnect all GPS / compasses and ensure vehicle is using VIO for navigation
Ensure that the drone can go into Altitude / Position mode while still on the ground
Ensure there are no other sources of positioning besides VIO:
- EKF2_OF_CTRL: 0
- EKF2_GPS_CTRL: 0
- EKF2_EV_CTRL: 15
- SYS_HAS_MAG: 0
Flight Tests 
❏ Vertical position should hold current value with stick centered
❏ Pitch/Roll/Yaw response 1:1
❏ Throttle response set to climb/descent rate
❏ Horizontal position should hold current value with stick centered
❏ Vertical position should hold current value with stick centered
❏ Throttle response set to climb/descent rate
❏ Pitch/Roll/Yaw response set to pitch/roll/yaw rates
착륙 
❏ Land in either Position or Altitude mode with the throttle below 40%
❏ Upon touching ground, copter should disarm automatically within 2 seconds (default: see COM_DISARM_LAND)
예상 결과 
- 추력을 올릴 때 서서히 이륙한다
- Drone should hold altitude in Altitude mode without wandering
- Drone should hold position within 1 meter in Position mode without pilot moving sticks
- 위에 언급한 어떤 비행 모드에서도 떨림이 나타나서는 안됨
- 지면에 착륙시, 콥터가 지면에서 튀면 안됨