Thanks John, checked out your video and all was well until the last 15 seconds or so. Did you happen to notice what the GPS signal was like when it went nuts?
I have a couple more questions about the follow me function if you don't mind...
First, you confirmed that it tries to maintain a constant distance and relative heading, but what about relative altitude? That is, if I'm at 1000 feet and the I1 is at 1100 feet when follow me is engaged will it maintain the same relative altitude difference? So, if I climb to 1250 feet will the drone climb to 1350? What about decent?
Lastly, and this is perhaps a more general question, but if the drone tries to maintain the same relative height then if I climb more than 400 feet will the drone continue to follow me or will it stop at +400 feet from where it was launched? Going in the opposite direction, will it follow me if I descend more than 400 feet?
The reason I'm asking these specific questions is that there's a place I'm thinking about that's a dirt road the ascends a cliff of 1200 feet elevation gain. The road has a number of switch backs and I've plotted where I'd want the I1 to be relative to me so that it doesn't hit anything, but with an elevation gain or loss of 1200 feet I'd have to break this up into three or more segments unless follow me will permit an elevation change greater than 400 feet.
This does raise a technical question about the 400 foot rule given the fact that I could ascend or descend 1200 feet and the I1 would never be more than 400 feet above the ground at any moment in time. Seems like a grey area, but I have to believe the DJI controller will go by the elevation at start up no matter what.
And, just to be clear, if you can go no higher than 400 feet how much below the starting elevation can you go -- 400 feet?
Brian
Drone GPS signal on the GO app was still good... To clarify that video was two separate tries of the function...
They were flights about 45 mins apart in reality as I recall...
First try seemed to work at walking speed... the last 15 seconds was another try that went all wrong in a hurry...
As to altitude changes... I honestly do not know yet how it will react... or what it's basing RC height on...
The Drone uses it's Barometric air sensor reset to zero height when the home point is set...
Some tablets (like the Air 2) also have a Baro sensor... but is it using it to get RC height?
I somehow doubt that... based on all the tablets out there without one...
GPS altitude both on the iPad and Drone (from what I have seen) is not steady enough to be in use on this is my guess.
Takes time for a GPS to dial in a height fix... Yet we are maybe trying to use it shortly after power up...
Legally (I am assuming you are US based) the 400 foot rule is above ground level where the aircraft is at in flight...
I regularly take off and fly over a river valley area below takeoff height by 80 ft or more... (overall area is flat on balance)
If I go above 320ft indicated while over that area... I am in a way breaking the rules...
The valley is only 1/2 mile wide however... No aircraft flying at 500ft would dive down to follow the terrain...
In short... I feel I don't know enough about DJI "Follow Me" to give you any good answers...