tilt. This mode helps to increase the range of the frame angles where the gimbal’s
operation is stable. Note that this option is ignored if you connect a second IMU
mounted on the frame, because the data from the second IMU is more precise than
sensing the magnetic field from the motors.
Note: For proper operation in this mode, it is necessary to calibrate the Offset setting (see below). It is
not recommended to use this option in flight.
2. FOLLOW FLIGHT CONTROLLER – The camera is controlled from a RC transmitter
together with the mixed signal from an external flight controller (FC) so that the camera
will follow frame inclinations during roll and pitch. Almost every FC has servo outputs
to drive a gimbal. These servo outputs contain information about frame angles in the
PWM format that all servos understand. The Gimbal Controller can use this information
to control the camera. To do so, it is necessary to connect and calibrate the external
flight controller (see EXTERNAL FC GAIN settings section). After calibration, you can
set percentage values for the ROLL and PITCH axes.
3. FOLLOW PITCH, ROLL – This mode is similar to FOLLOW FLIGHT CONTROLLER
mode but does not require FC input to determine PITCH and ROLL position. The
camera follows the PITCH and ROLL angle of the frame by estimating values from the
motors’ magnetic field. Note that if the motor skips any steps, position will be estimated
incorrectly, and the operator will need to correct camera position by hand.
Caution: It is not recommended to use this mode in first-person view (FPV) flying because of the
opportunity for errors in estimating camera angle.
• Follow ROLL start, deg. – Set the PITCH angle (in degrees) where the ROLL axis
enters follow mode. Below this angle, ROLL is in lock mode. The purpose for this
setting is that at high PITCH angles it does not make sense to keep ROLL locked
on the horizon.
• Follow ROLL mix, deg. – Set the PITCH range (in degrees) where the ROLL axis is
gradually switched from ‘lock’ mode to ‘follow’ mode (see Figure X). Hint: To
completely disable follow for ROLL, set these values to (90, 0). In other words, it
would require a PITCH angle of 90 degrees for follow mode to take effect on the
ROLL axis. To permanently enable Follow Mode for ROLL (regardless of the
camera PITCH angle), set the values to (0, 0).
4. FOLLOW YAW – The FOLLOW YAW mode is the same as the modes above, except that
it can be enabled only for the YAW axis. For example, you can lock the camera in ROLL
and PITCH by selecting the “Disabled” option but still control camera panning by
enabling the FOLLOW YAW option.
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