CameraPhotoIntervalS not working in MissionItem

[mavlink]

CameraPhotoIntervalS not working in MissionItem

[byuarus]

@JonasVautherin
I did the test and it looks that the issue is on the MAVSDK side.

My test:

1. I set cameraPhotoIntervalS to 4 sec for every MissionItem from our app
2. Uploaded mission to the drone from our app
3. Downloaded the mission from QGC and Start image capture shows interval 1 sec
4. Did a flight and camera tried to take photos with 1-sec interval
5. Corrected the mission in QGC, changed Start image capture interval to 4 sec
6. Uploaded the mission from QGC
7. Did a flight and camera took photos with 4-sec interval as expected

[byuarus]

Could it be that you were starting the timelapse differently before (e.g. with the camera plugin)?

Yes, it could be the case.

[byuarus]

@JonasVautherin I've tested your fix and it worked 👍
Thank you!

[julianoes]

Funny, that's a feature, right? 😄

Do you think that's a regression with MAVSDK?

[douglaswsilva]

🙃
I don't remember when it stoped working though, @byuarus might remember.

[byuarus]

@julianoes I'm not sure when it broke. It was working with the first Dronecode SDK release that had this feature and Yuneec FW at that time.
@julianoes Do you think it could be an incompatibility with the autopilot/camera firmware version or this issue is on the MAVSDK side only?

[JonasVautherin]

Thinking about it, one thing you can try is this:

1. Upload the mission to the drone
2. Download the mission from QGC
3. Check in QGC if the time interval is set correctly. If yes, I would assume that MAVSDK did its job correctly. If not, MAVSDK possibly messed up somewhere... 😄

Also, does the time interval work if you send a mission from QGC? That would allow to check if the camera is working properly.

[JonasVautherin]

It was working with the first Dronecode SDK release that had this feature and Yuneec FW at that time.

Are we sure of that? I believe this field was always ignored actually (see fix here). Could it be that you were starting the timelapse differently before (e.g. with the camera plugin)?