Directly Import All parameters from the First copter to Subsequent Identical Ones?

ArduCopter
1

I have many identical copters with all equipment being the same. After the first drone is well tune, when building up the next one, can I directly load all parameters from the first copter, including temperature compensation calibration parameters?

Currently, it’s troublesome to selectively load partial parameters, and it’s easy to miss some.

Direct parameters load would be much more convenient. However, I’ve noticed that many parameters, such as those starting with “Ins,” change each time the copter starts.

2

You can Use the same parameter file for all drones, but…

After loading that parameter file you need to re-do:

  1. IMU Temperature calibration
  2. accel calibration
  3. mag calibration
  4. battery monitor voltage/current calibration (optional, if the component tolerances are small)

If they are not build similar enough to each other, you need to also redo:

  1. notch filter

Ignore the parameters that change on every reboot.

1 Like
3

Thanks. It’s a bit strange. With the same flight controller, the same compass, the same IMU, and the same installation position, why can’t the original temperature compensation and accelerometer calibration be used?

4

Because those depend on the chips used.
The chips have the same model, but are not the exact same chips. Each chip is unique. And that makes each FC unique as well.

The reason why we calibrate is because every chip is different.

5

The accelerometer offsets depend on the attitude of the controller. This will always be a bit different between vehicles. The Scale will be different IMU to IMU.