Let's run your flight logs through the analyzer and find out which slider values resulted in the best response.
This time we need a different kind of analysis.
This time you can see two lines per flight.
One is called setpoint and the other is called gyro.
The setpoint is essentially the position that the drone should have based on your stick position.
And the gyro is the actual position of the drone measured by the gyroscope.
To tune feedforward, we want that these two lines are as identical as possible. If they are further apart, it means your drone has more delay and feels less snappy.
Be aware:
The plot includes a third line "feedforward", this shows how much feedforward is working, just ignore it.
- Upload your "btfl_all.bbl" file into the analyzer (big button below) and compare the flights (you can toggle visibility of each flight line in the plot by clicking its label in the legend on top of the plot)
- Find the flight that is closest to the desired state.
- Set your feedforward Slider to the value which was used during that flight and hit save (you can find the value in the legend/label of the plot)
You successfully tuned your feedforward.
Tip
You can easily zoom into the plot by clicking on the icon on the top right that looks like a square with a plus on the top left corner and then selecting an area of interest in the plot.