Solex for Solo

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Just had a chance to test a Solex (installed on June 26, 2019 + missions add-on + geo-tagging add-on) Survey mission using an Open Solo drone ( standard hardware) . It looks like the Solex app got updated on July 29, 2019.

I created 3 Way Points : 1= take-off, 2=Survey (altitude: 118.11ft, speed 24.45 mph, Gimbal Angle =0) , 3= RTL
Set Vehicle type = Drone
SetCamera = GoPro Black ( set to take a pic every 2 seconds)
Enabled terrain following.

As soon as mission started I noticed the Gimbal stayed at 90 degrees( looking forward) and speed was too low: 11 mph ( default mission speed). I ended up correcting gimbal to point down and was able to complete mission with one battery ( small area).

1-I am not sure why drone speed during the mission was not set to the speed defined under Survey and reverted to default value? Have I missed a step or a setting?

2- Will Solex control/trigger camera based on camera type, speed and altitude ( like Tower used to )?

Thanks!
Hi,

I can check on the survey speed. In my testing here, the speed specified on the Survey item itself always works to set the speed during that part of the mission. When you have a Speed attribute set on any mission item, it inserts a DO_CHANGE_SPEED command into the mission just before that item in the output, so it should change to that speed before executing the waypoint.

Yes, Solex will trigger the camera based on camera type/speed/altitude like Tower does(did), provided you have "Auto-start Camera" selected in the Survey item properties. The Survey item inserts a CAMERA_TRIGGER command at the start of the Survey with the longitudinal distance appropriate for the camera you're using, altitude, and overlap setting. This kind of makes me wonder if I ought to put something in place to show "footprints" on the map when the vehicle takes a picture like Tower used to. It would be handy for showing where it takes a picture.

As for gimbal angle, I've had the same thing happen with Surveys. I forget to insert a "gimbal angle" action on the Survey item and it shows up at that part of the mission with the camera pointing forward. What you can do is insert a Gimbal Angle action on the Survey with a value of 90 (down) and when it arrives at that part of the mission, it will angle the gimbal down. This is known as an "in-app" action, since it's using Solo's APIs from the app to angle the gimbal. So a connection between Solex and the vehicle is necessary for that. One thing I could do is add an option to surveys for auto-tilting the gimbal, which seems like a feature that makes sense.

Thanks,
Kelly
 
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Kelly,

I have auto-start recording enabled and it worked with non-mission type flights, but I believe I also had to start recording this time.....not 100% sure though :)

Let me know if it will help to take a look at the logs... or anything that might help with testing/troubleshooting.

BTW, I noticed multi-battery missions is part of the July 29 release ( thanks!) . I wonder how it works? Is this option "visible" once you select a larger area to survey? Is it based on standard battery flight time or is it dynamic ( continues data capture from the point the mission was interrupted?

Thanks!
Lee
 
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Kelly,

I have auto-start recording enabled and it worked with non-mission type flights, but I believe I also had to start recording this time.....not 100% sure though :)

Let me know if it will help to take a look at the logs... or anything that might help with testing/troubleshooting.

BTW, I noticed multi-battery missions is part of the July 29 release ( thanks!) . I wonder how it works? Is this option "visible" once you select a larger area to survey? Is it based on standard battery flight time or is it dynamic ( continues data capture from the point the mission was interrupted?

Thanks!
Lee
Multi-battery missions is something I thought about for a while before building it, because it seemed like it would be really complicated. The main reason for the complexity is because I was also thinking in terms of it being a visible option for larger missions. The question then becomes "what qualifies a mission as 'larger'?" It's hard to say, and I don't know what a visible option would really do in any case. "Push this button to do something different with this mission". I don't know what such a button would do. :)

It turns out, it isn't very complicated. The basic rule is this: If you end a mission of any length by switching out of Auto mode for any reason and subsequently land and disarm, the mission is considered "aborted". This can happen because your vehicle RTL's because of low battery (the most common case), you get concerned about it hitting something and switch to Loiter and land, you RTL manually because you're thinking it should have RTL'd because the battery seems low, etc. If you do any of those things and switch back to Auto, it resumes the mission normally. If you do any of those things and land/disarm, Solex considers the mission aborted. (Note that an RTL at the end of a mission doesn't count as an aborted mission; the vehicle is still in Auto mode even as it flies the RTL waypoint back to the launch location.)

If, at this point, you power the vehicle off and swap batteries while staying on the Mission Layer of the Flight screen in Solex, you'll hear Solex say "Connection lost" because the heartbeat signal from the vehicle has vanished. Stay on the Mission Layer of the Flight screen anyway. You can power the vehicle back on and Solex will resume the connection. Several seconds after regaining the connection, it will prompt you to ask if you want to resume the incomplete mission. If you answer No to this question, the mission is scrubbed and all is forgotten (except, of course, pictures you might have taken before aborting the mission, etc). If you answer Yes here, Solex will generate a new mission starting at one waypoint before the one it was headed to when the mission was aborted and upload it to the vehicle. If the vehicle is a copter or plane, it will start the mission with a Takeoff and the most-recent ChangeSpeed and CameraTrigger commands immediately after that before the resumed waypoint. Arm, launch and start the mission, and it will pick up where it left off. Continue this cycle until you've flown the entire mission.

You can also enable "Return to Me" and follow mission's progress across a large area. In that case, an RTL mode switch will cause a flight back to your new location rather than the initial launch point, potentially saving time and batteries.
 
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solex does not see my solo
Would help having more details about this issue. Is the wi-fi enabled on the device you installed Solex on? If the wi-fi is enabled on your phone/tablet and you can't find Solo's wi-fi in the list of wi-fi networks ( listed when clicking on the Solex WIFI button) then I'd suspect a problem with your Solo controller/drone.
 

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