I create my missions using the
FlyLitchi hub on a browser on my desktop. I assume it is possible on the mobile device with the app, but I vastly prefer to use an interface that isn't tiny. You can also export the mission to view it in 3D on Google Earth to get a sense check about how it will work.
A few observations & tips from my 3+ weeks with Litchi:
- The interface is pretty good, but be aware that a left click will often add an unwanted additional waypoint: just click the delete button on the waypoint panel to delete it. A right-click will add a new POI.
- When you create and Save a mission, it'll be on your Litchi cloud account (free). Then, when you want to fly, touch the "eye" icon in the upper left then the Waypoint button to let you open the saved mission.
- So far at least, my missions have waypoint #1 set well above any obstructions, so I fly my Mini 2 manually up to roughly the needed altitude before touching the start icon to begin the mission.
- The Settings panel (lower left button) sets parameters that will be used as defaults, so start with it. Pay attention to the "finish action": for loops, "Back to 1" seemed to make sense, but I discovered that when I chose to start a 10-waypoint mission at WP5, it ended the mission by starting to return to WP5! Do you want the flight to use a curved path based on your waypoints or straight lines between points? Curves are best for video; straight lines for photos. Also, set the default cruising speed for the mission: if you want to change it later, you can do so from the settings panel to alter the overall mission time.
- Start high if you are in an area with obstructions. I "know" the trees around my yard area are at most 25m, but they still seem awfully close when I'm near them at 40m due to the wide angle lens. After gaining confidence, I was able to edit the waypoints where I knew I was clear of trees to fly lower.
Having a programmed mission is great for repeating flights. My 10-waypoint mission gets photos of our property from various points around the yard area. At the current 12kph cruising speed, it takes 5 minutes to cover the 949m at an average altitude of 40m. During a very gusty flight earlier this week, it was blown off course by 15-20m while ~175m away. I was just about to abort and take over manually when I noted that it was correcting itself and returned back to complete the mission. Just as well: tramping through deep snow in -15°C to recover a downed drone would have been very discouraging!
Oh, and take a look at
AirData as a way to review flights after the fact. You need to turn on a setting in Litchi to allow the telemetry data to be sent to your AirData cloud account — but then you can get a ton of useful data about the flight. View it on a desktop screen so you can get the full benefit of the maps and sensor details, as well as lots of info about settings used for photographs.