senseFly swinglet User Manual page 122

Maintenance, Repair and Troubleshooting
The inertial sensors are used by the autopilot to compute the attitude (i.e. its ori-
entation in space) of the drone. The attitude is displayed by the artificial horizon
in the Flight Monitoring tab of eMotion. To check the inertial sensors, follow these
steps:
1. Switch the swinglet CAM on by connecting the battery and connect to eMo-
tion.
2. Put the drone on a flat surface (typically an office floor) and check that the
artificial horizon is level.
3. Take the drone with your hand and put it in different orientation. Make sure
that the artificial horizon displays the corresponding orientation.
The artificial horizon should follow smoothly the motion of the swinglet CAM and it
should not drift when the drone is not moving. In case of doubt, take a short video
and follow the instructions in section 'Reporting a problem with your swinglet CAM'
on page 147 for advice.
Check 3: Barometric pressure sensor
The barometric pressure sensor is used to measure the altitude from the take-off
location. To check it, follow these steps:
1. Switch the swinglet CAM on by connecting the battery and connect to eMo-
tion.
2. Move the drone from your feet to above your head (about 2 m altitude vari-
ation).
3. Check the altitude on the vertical bar right of the artificial horizon or in the
Status Panel next to the drone icon on the map).
The displayed altitude should follow the drone motion, i.e. if the drone is raised
by 2 m, the altitude reading should increase by about 2 m. When the drone is not
moving, the altitude reading may slowly drift by up to ±10 m.
Check 4: Air speed sensor
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