The advantage is, that this compass sensor can be placed away from magnetic disturbances.
The orientation is automatically detected by the integrates ACC sensor.
In the virtual menu you can check the current orientation.
Six different orientations are possible.
The sensor must be placed "even" and not tilted!
Orientation 1-4: horizontal with different sides on top -> arrow points to the front
Orientation 5 & 6: vertical with the bottom side in front
Front is the direction where the arrow on the FlightControl points to
The compass must be mounted 90° - not tilted
Changing the orientation
If you calibrate the gyros while startup, the Navi-Ctrl compares the actual mounting position with the position the sensor had at the last compass-calibration.
If the mounting orientation has changed, the NC asks for new calibration.
The sensor is supported since 2.03i
If the compass is detected for the first time, the NC asks for new calibration.
The NC stores for the external compass an own calibration dataset.
If the external compass is disconnected, the old dataset is still available for the internal compass.
Connection to the Navi-Ctrl
Connection on the Navi-Ctrl 2.1
The NaviControl 2.1 has an integrated connector.
The small capacitor is also integrated.
Connection on the Navi-Ctrl 2.0
- Red = 5V
- Black = GND
Blue & white = I2C
anti-noise capacitor A small capacitor must be soldered to the pins on the Navi-Ctrl 2.0
It is not possible to use the external compass for the old versions V1.x