If you activated the option to “Skip gyro calibration at startup,” the gyro is not calibrated
every time, and the controller will start working immediately after power-up. Recalibrate
the gyro manually if you notice degradation in the stabilization quality.
CALIBRATING THE ACCELEROMETERS
It is necessary to calibrate the IMU prior to installation, and it is recommended to re-
calibrate it occasionally, particularly when the temperature changes significantly.
Simple calibration mode – Set the IMU sensor flat on the table and press CALIB.ACC in the
software (or the menu button on the controller, if it is assigned). The LED will blink for 3
seconds. Do not move the sensor during calibration. The sensor does not need to be
connected to the camera platform for this step, as you are calibrating the sensor, not the
camera.
Advanced calibration mode – Perform calibration in simple mode first, as described above.
Then, rotate the sensor board so that each side of the sensor faces up (6 positions total).
Fix the sensor in each position, press the CALIB.ACC button in the software and wait about
3-4 seconds while the LED is flashing. The order of the other sides does not matter, as long
as the base position used in the Simple calibration mode is first. You do not need to press
the WRITE button —calibration data is written automatically after each step.
NOTE: Precise accelerometer calibration is extremely important for holding the horizon during dynamic
movements or yaw rotation.
STEP #5:
TUNE BASIC SETTINGS
Prior to tuning the gimbal, ensure that the IMU is configured and calibrated and that Follow
Mode is not enabled (ensure “Estimate frame angles from motors” is off and Follow YAW is
off). “+” should be set to zero. PWM frequency should be set correctly for your application
prior to tuning.
1. Connect the battery.
2. Set POWER such that the motors have enough torque to hold the camera in place but
do not overheat. Wait at least five minutes to ensure the motors do not get too hot at
that setting. Find the lowest power setting that still provides adequate holding torque,
even when the camera is disturbed.
3. Set PID values for all axes to zero.
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