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ArduPilot Parameters

Parameters panel

Harlock downloads all parameters from the vehicle and displays them in a searchable table. For each parameter:

  • Name and current value
  • Official ArduPilot description (from built-in metadata)
  • Allowed range and discrete values
  • Unit of measurement

Downloading parameters

Click Download to request the full parameter list from the vehicle. The operation takes a few seconds.

Editing a parameter

  1. Search for the parameter in the search bar (real-time search)
  2. Click on the value
  3. Enter the new value within the indicated range
  4. Press Enter or click the confirm button

Changes are sent to the vehicle via PARAM_SET. Harlock waits for confirmation before updating the UI.

Favourite parameters

Add a parameter to favourites with the ⭐ star icon to find it quickly in the Favourites tab.

Import / Export

  • Export — saves all current parameters to a .param file (QGroundControl-compatible format)
  • Import — loads a .param file and applies only parameters that differ from the vehicle
tip

Export parameters before any significant change to have a quick backup.

Common parameters

ParameterDescription
ARMING_CHECKBitmask of enabled pre-arm checks
ANGLE_MAXMaximum tilt angle (centidegrees)
WPNAV_SPEEDWaypoint navigation speed (cm/s)
RTL_ALTRTL return altitude (cm)
FS_THR_ENABLEThrottle failsafe
BATT_MONITORBattery monitor type