6.3 Calibration of Sensors
Sensors are important in the working of a drone. Every sensor should respond to the respective input with excellent efficiency and time response. There should not be any lag in the response of the system. For availing the better performance from the sensors, one should calibrate these before the flight.
RPA Configuration -Sensors
The Sensor Setup section allows you to configure and calibrate the vehicle's compass, gyroscope, accelerometer and pressure.

Calibration of Accelerometer

Under this setting, you can calibrate the accelerometer of the device. Once you click on ‘Calibrate' button you would be asked to hold the vehicle in various orientations. Follow the instructions popped on the screen and calibrate the accelerometer.
Accelerometer Calibration

Calibration of Compass

Select the "Compass" tab first. Click on "Calibrate" button. Follow the instructions displayed on the screen. You need to rotate the vehicle randomly around all axes until the progress bar fills all the way to the right and the calibration completes.
Calibration of Compass
Note: While the vehicle is armed, compass calibration is not possible.

Calibration of Level Horizon

If the horizon is not level after completing accelerometer calibration you can calibrate the level horizon for your vehicle. You will be asked to place and hold your vehicle in level orientations while it captures orientation.
Note: Leveling the horizon is highly recommended for optimal flight performance. If you notice a persistent drift during flying, repeat this procedure.
Level Horizon Calibration is used to compensate for minor misalignments in controller orientation as well as to level the horizon in ground control flyview.
Calibration of Level Horizon
After the orientation is established and the level-horizon calibration is complete, check in the flight view that the heading in the compass is around 0 when you point the vehicle towards the north and that the horizon is level.

Calibration of Pressure Sensor

This calibration sets the altitude to zero at the current pressure.
Calibration of Pressure Sensor
Click on "Calibrate" button to calibrate the Barometer - pressure sensor used in a drone. The system will carry out the process of calibration. On successful completion of the calibration process, the "Barometer calibration complete" message will be displayed.
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Calibration of Accelerometer
Calibration of Compass
Calibration of Level Horizon
Calibration of Pressure Sensor