Setup

Calibration and maintenance actions for the flight controller.

Calibrate Accelerometer

The accelerometer tells the flight controller which way is down. It's used by the self-levelling features -- Angle, Horizon, Acro Trainer and Rescue -- and the ACC_CALIB arming flag stays set until it has been calibrated.

1. Install the flight controller in the helicopter.
2. Stand the helicopter on a level surface, with the main shaft vertical (check with a level on the swashplate or the frame).
3. Click Calibrate Accelerometer and don't touch the helicopter for a couple of seconds.

Calibrate again whenever you remount the flight controller. Small drifts in Angle or Rescue mode are then trimmed out with the accelerometer trims, not by recalibrating.

Note

If you don't use any self-levelling mode, you can switch the accelerometer off on the Configuration tab instead.

Calibrate Magnetometer

Only shown on boards with a compass. Click the button, then rotate the helicopter through a full turn around all three axes within 30 seconds. The compass is used for telemetry only.

Reset Settings

Restores all settings to the defaults for your board. You're asked to confirm. Take a backup first.

Save Settings

Writes the current settings to the flight controller's flash. The other tabs save for you, so you'll rarely need this.

Boot Loader / DFU

Reboots the flight controller into its DFU bootloader for flashing, as if you'd held the BOOT button. It stays in DFU until it's flashed or power cycled.

Mass Storage Mode

Reboots the flight controller as a USB drive, so you can copy Blackbox logs straight from its flash chip or SD card. Power cycle to return to normal.

System Reboot

Restarts the flight controller.