Configuring Flight Controller Mounting Directions

I. Principle

The flight controller (FC) should be installed horizontally with the front facing forward by default. However, in certain special aircraft models or space-constrained situations, inverted or rotated mounting may be required. To ensure sensors correctly identify flight orientation, the FC orientation parameters must be adjusted in the INAV configuration to match the actual mounting angle.

II. Equipment Preparation

1) Flight Controller: Any of the following flight controllers are suitable for this tutorial: SpeedyBee F405 WING APP / SpeedyBee F405 WING MINI / CoreWing F405 WING V2.
2) Ground Control Station: INAV ground control station (GCS).

III. Specific Operations

Method 1: Default Installation (Standard Orientation)
✅ No parameter modification is required for default installation. The flight controller orientation remains at factory settings.

Method 2: Flight Controller Inverted Mounting
✅ Suitable for situations where space constraints require the flight controller to be mounted upside down.

Modification Steps:

1. Enter CLI command line mode (Configuration → CLI).
2. Enter the following command:

set align_board_roll = 1800
save

3. Click "SAVE SETTING", restart the flight controller to ensure the parameters take effect.
   Restore Default Settings:
   To restore standard installation orientation, you can enter:

set align_board_roll = 0
save

Method 3: Flight Controller Front-Back Inverted Mounting (180° Rotation)
✅ Suitable for situations where the flight controller needs to be rotated 180° front to back for installation.

Modification Steps:
1. For INAV 6.0 and below:

• Go to the Configuration page, change the YAW direction to 180° in the "Flight Controller Orientation" option.
  2. For INAV 7.0 and above (no interface option):
• Enter CLI command line mode, enter:

set align_board_yaw = 1800
save

3. Click "SAVE SETTING", restart the flight controller to ensure the parameters take effect.
Restore Default Settings:
To restore standard installation orientation, you can enter:

set align_board_yaw = 0
save

Result Verification

1. Go to INAV Configurator → "Setup" page, check if the flight controller orientation correctly matches the installation method.
2. Check sensor feedback on OSD or ground control station, manually tilt the flight controller to confirm roll, pitch, and yaw directions are correct.
   

3. **If sensor data is abnormal, recheck the settings** and try re-entering CLI commands to correct. ## **IV. Q&A** ## **Technical Support QR Code**