AirData to Litchi Converter Instructions

Instructions

This application will convert a CSV file from AirData or an SRT (subtitle file containing telemetry data) into a CSV file that can be imported into Litchi, resulting in a waypoint mission.

Synchronize your flight data to AirData
1. Fly your drone.
2. Synchronize your flight data to AirData.
  1. AirData provides well-written help files describing this process.
3. Select your flight in the list on the left side of the AirData dashboard.
4. Select "CSV" under the map of your flight. Save the CSV file to your computer.
In page one of AirData to Litchi Converter:
1. Select the type of data extraction desired:
  - Photos only: This type of extraction will detect where any photo was taken and output one waypoint per photo. If this option is used, the minimum distance setting is ignored.
  - Video only: This type of extraction will detect where any video was recorded and extract waypoints from that section of the log file.
  - Waypoint regions only: This type of extraction will detect where any waypoint path was flown and extract waypoints from that section of the log file.
  - Minimum Distance: This type of extraction will extract waypoints from the entire log file.
2. Choose whether or not to use the mission speed at each waypoint. If this is set to "no", the Litchi mission will simply use the cruising speed.
3. Select the minimum distance between waypoints. A log file contains data from every few milliseconds of a flight. This is a lot of data. Because waypoint missions do not require waypoints to be extremely close together, this option is used to specify an approximate spacing between them.
4. The flight log begins as soon as the drone motors are started (which is usually where the home point is also set). Choose the horizontal distance from the home point where the first waypoint is to be extracted.
5. Use the file chooser to upload your csv or srt file.
6. Generate the mission and review the resulting parameters.
In page two of AirData to Litchi Converter:
1. Review the parameters and calculations.
2. Download the csv file.
In the Litchi Mission Hub:
1. Use the Missions menu to import the csv file created by AirData to Litchi Converter.
2. Delete any waypoints that are not desired.
3. In "Settings" make sure that the "Heading Mode" is set to "Custom(WD)".
4. Adjust the Litchi mission parameters (such as speed or curve size) as desired
5. Go fly!

The following question is sometimes asked: Is it possible to fly a drone manually and then convert that flight into a repeatable Litchi mission? Strictly speaking, the answer is "no". However, this utility will allow one to approximate[*] the flown missing by placing waypoints along the flight path. Depending on your requirements, this solution may produce adequate results.

The first step in this process is to synchronize your flight data to AirData. This process is not difficult. In fact, you may already be doing this. If you are not, AirData provides very well-written instructions. Once your flight data is synchronized with AirData, it is simply a matter of downloading the CSV file from AirData, uploading it here, while making a few selections.

This utility is also able to read Litchi flight log files or DJI SRT files containing telemetry data.

[*] Why is this only an approximation? Flight logs contain data points that define the actual path that was flown. Waypoints in Litchi missions do not necessarily lie on the flight path. As a result, using data points from a flight log as waypoints will only approximately re-create the original mission.