I'm an experienced flier, and can't imagine ever crashing on my own, but thanks to some dumb coding in Litchi my Mavic backed into the side of my garage.
I'll try to keep this short. I created a great path by flying it first. (I did this because my extensive testing of Litchi showed that there was a lot of play when it flew a preplanned route.) I made certain that all of the sideways and backward flying happened with no obstacles within 100 ft. And then for the last segment I turned the Mavic in the direction of flight just to bring online obstacle detection as an added precaution against the Litchi "drift." Then, last minute, to make sure the gimbal angle was correct I added a POI at the far end of the route. What I didn't realize was that the POI overrode all my previous headings and every waypoint was now facing that one POI. And sure enough, instead of turning around on the last leg it flew backwards all the way, and then a good 20 ft past where I set the final waypoint. Then add the fact that I have seen no quick way to override Litchi's control and I helplessly watched as a $20 app flew my $1000 Mavic into a wall. I know about Litchi's pause button, but in my testing, there's a delay (maybe 2-5 secs). It did no good.
So words to the wise: recheck every aspect of your route before you start, and keep your finger hovering over the pause button EVERY TIME you fly it. Just because it flew right once, doesn't mean it will the next time. My understanding is that GPS is supposed to be accurate within 5-10 ft. Not with Litchi. From now on I'll never allow a flightpath or a waypoint within 50 ft of any solid object.
Best of luck!
I'll try to keep this short. I created a great path by flying it first. (I did this because my extensive testing of Litchi showed that there was a lot of play when it flew a preplanned route.) I made certain that all of the sideways and backward flying happened with no obstacles within 100 ft. And then for the last segment I turned the Mavic in the direction of flight just to bring online obstacle detection as an added precaution against the Litchi "drift." Then, last minute, to make sure the gimbal angle was correct I added a POI at the far end of the route. What I didn't realize was that the POI overrode all my previous headings and every waypoint was now facing that one POI. And sure enough, instead of turning around on the last leg it flew backwards all the way, and then a good 20 ft past where I set the final waypoint. Then add the fact that I have seen no quick way to override Litchi's control and I helplessly watched as a $20 app flew my $1000 Mavic into a wall. I know about Litchi's pause button, but in my testing, there's a delay (maybe 2-5 secs). It did no good.
So words to the wise: recheck every aspect of your route before you start, and keep your finger hovering over the pause button EVERY TIME you fly it. Just because it flew right once, doesn't mean it will the next time. My understanding is that GPS is supposed to be accurate within 5-10 ft. Not with Litchi. From now on I'll never allow a flightpath or a waypoint within 50 ft of any solid object.
Best of luck!
