Camera

If a camera mount is used the function of the (pitch / roll) servos can be adjusted. These servos are connected to the connector SV2 => Servo1 (Nick) and SV3 => Servo2 (roll) of the FlightCtrl.
Additional you can connect three more servos: SV3 (Servo3) and SV4 (Servo4/Servo5).
Anschlüsse FlightCtrl2.0/2.1


If the change heading feature Mixer Setup software Technically is used, the heading direction should also be changed here, in order for the pitch/roll camera gimbal servos to respond on their corresponding axis

Choosing the functions

• Servo control

  • Value defining the position of the nick/roll servo. If a numeric value is entered (i.e. a value corresponding to a level nick/roll angle), the angle will remain the remain same during flight. If a poti (i.e poti3-8, note: the poti has to be assigned to a channel) is selected from the dropdown menu, the user can change the angle of nick/roll in-flight.

• Nick Compensation

  • Influence of the nick angle and roll angle to the corresponding servo. Used for tuning the servo-throw at MK attitude changes.

• Invert direction

  • If the rotational direction of the servos are opposite, the direction can be inverted.

• Servo min

  • Minimum value as a stop.

• Servo max

  • Maximum value as a stop.

• Servo refresh rate

  • Some servos can not deal with fast values (high PWM pulse frequencies). (the smaller the value, the faster the drive)
    With the FlighCtrl ME 2.0/2.1 up to 5 servos can be issued. The output is performed sequentially.
    The "servo refresh rate" also controls the maximum number of servo channels. I.e. a value of 3 are only the first 3 servo channels (nick, roll, and servo 1)
    Then Servo4 and Servo5 are grayed out in the KopterTool and can not be used.

• Manual control speed

  • If a potentiometer for controlling the nick servo is registered, you can absorb the servos by a larger / smaller number of the servos. So also slower / smoother camera movements are possible.
    The pitch and roll compensation which is performed on the FlightCtrl is not involved - which is still very fast.

NOTE: The nick-/roll-servos are only activated after calibrating the gyro.

• Servo 3,4,5

  • This can be controlled from the FlightCtrl for three additional servo-outputs. It can be either a fixed value or a poti.

Tuning the servo compensation

• (by wizprod)

• Make sure your MK is perfectly level.
• Do an ACC-calibration (throttle-stick up and right).
• Do a Gyro-calibration (throttle-stick up and left).
• Set the servo-compensation for nick/roll to 0.
• Mount your camera and adjust servo-control values until the camera is level on both axis.
• Tilt/roll your MK 10-30 degrees. Because the compensation value is 0, the gimbal will not move on attitude changes.
• Increase the compensation value until the camera is level on both axis.
• Write the new settings to the MK.
• Go fly and tweak if needed.

  • Known issues: The above guide will only work perfectly with geared or belt-driven gimbals. Gimbals with push-rods does not react in a linear way, and a new parameter controlling exponential compensation, is needed (see this forum-topic for feature-request). The guide can be used, but the result will not be as consistent.