Hi,
I started my ModalAI Starling and took off in "Position" flight mode.
After a few seconds of "Position" flight, the drone gone out of control and started taking altitude.
Fortunately, my roof is high enough. I bring the throttle stick to "0" (bottom) so it doesn't go up and come down but I don't know why but the drone kept going up, I tried to switch the flight mode to "Altitude" from the RC, but that didn't gave me the control and again kept going up and up.

It was an indoor flight (without GPS). I don't see any "invalid position" errors in the messages of log file.

At last I had to "Kill" it from the altitude of almost 14 meters.

Flight Log ==> https://review.px4.io/plot_app?log=6161205d-4982-4e9a-9dc6-5f868f048e38

How this can be fixed?

@Eric-Katzfey
Hi,
The first change of flight mode to "Altitude" was because of the loss of control of pilot (see it from the "Manual Control Output") on the drone.
This wasn't happened first time, I experienced the same before this flight too.

The steps you provided aren't suitable, I can't do the flights like "Manual" and then verify everything everytime, this is a random behavior, even if I try in the manual mode and get a good flight, I can still experience the bad flight afterwards.

When I get the bad VIO data, I get the message of "invalid setpoints" in the log and over the QGC too and the drone goes into the "altitude" mode.

But, the problem I shared here is the loss of control over the drone, drone kept going upwards and even pulling the throttle to "0" isn't bring the drone to ground.

You can clearly see, even in the altitude flight mode (2nd time), the drone still kept going upwards at "0" throttle.

Please get us a fix for this.

@Eric-Katzfey
Hi,
The first change of flight mode to "Altitude" was because of the loss of control of pilot (see it from the "Manual Control Output") on the drone.
This wasn't happened first time, I experienced the same before this flight too.

The steps you provided aren't suitable, I can't do the flights like "Manual" and then verify everything everytime, this is a random behavior, even if I try in the manual mode and get a good flight, I can still experience the bad flight afterwards.

When I get the bad VIO data, I get the message of "invalid setpoints" in the log and over the QGC too and the drone goes into the "altitude" mode.

But, the problem I shared here is the loss of control over the drone, drone kept going upwards and even pulling the throttle to "0" isn't bring the drone to ground.

You can clearly see, even in the altitude flight mode (2nd time), the drone still kept going upwards at "0" throttle.

Please get us a fix for this.

@Moderator Your early response about the fix will be appreciated.

@Moderator As far as I can see, there is no interference in the area, I am working along for like 100's of meters. I don't have any such equipment in my premises which can interfere.

Physically, I checked the "915MHz ELRS Receiver" (BetaFPV Nano RX) and it's not lose. What else I can check?

Please help us fix all the issues, we are in agony since we started using this (Starling) kit.

I have other open issues too.

• Starling gone rogue (uncontrollable) in Position flight mode

@Moderator
Any word on the "RC Loss" problem?

I am continuously experiencing the "RC Loss" problem, even from a few inches or feet.
This has happened so many times, even during the flight the connection to the RC is lost and done is on it's own and it land (fail safe).

Log # 1:
https://review.px4.io/plot_app?log=d347bebd-53b9-4cfb-94ca-7e34ee719b99

Log # 2:
https://review.px4.io/plot_app?log=495b6910-01b4-4311-a4b7-89ba6c20fac9

As you can see in the below pictures, the drone is connected with the laptop over WiFi, RC is ON and has enough power (3.9 V).
Camera preview is available on the laptop, and QGC shows a "Manual Control Lost" message on the screen.
I don't see the signals bar on the screen of the RC.

@Moderator @Alex-Kushleyev Please help me, I am not sure how to make this thing stable.
I bought this drone by spending thousands of dollar, but I am not getting even very basic stable flight.

Hi,
I started my ModalAI Starling and took off in "Position" flight mode.
After a few seconds of "Position" flight, the drone gone out of control and started taking altitude.
Fortunately, my roof is high enough. I bring the throttle stick to "0" (bottom) so it doesn't go up and come down but I don't know why but the drone kept going up, I tried to switch the flight mode to "Altitude" from the RC, but that didn't gave me the control and again kept going up and up.

It was an indoor flight (without GPS). I don't see any "invalid position" errors in the messages of log file.

At last I had to "Kill" it from the altitude of almost 14 meters.

Flight Log ==> https://review.px4.io/plot_app?log=6161205d-4982-4e9a-9dc6-5f868f048e38

How this can be fixed?

@Moderator I was able to do the flight after setting ""offboard_mode": "trajectory",".
But, I am only able to set 1 point (Plan to a Point) on the map.

Is this possible to setup a complete mission instead of only putting a single point at once?

@Alex-Kushleyev @Vinny @Eric-Katzfey @modaltb
Your early response will be appreciated.
Thank you

Hi,
I recently bought the VOXL 2 Starling Indoor and Outdoor SLAM & Autonomy Development Drone from ModalAI.

My main purpose of purchasing this product is the use of Indoor SLAM and Autonomous flights. But, I am not satisfied with the product.

Initially, the drone wasn't creating the 3D map as shown in the video, but unfortunately as of now I am just struggling with the feature.

In the beginning the mapper service wasn't installed over my VOXL2, I got the instructions and installed it somehow.

Problem:
Now, I can create the map (not perfect), but upon doing the "Plan to a Point" ---> "Go" ---> "Follow Path", the drone isn't following the path and it just hover and doesn't move.
If I switch the flight mode to "Offboard", the drone starts doing 8.

Logs are attached below:
Log # 1:
https://review.px4.io/plot_app?log=b9497141-2f1b-4e55-8ebc-662d930ae9ee

Log # 2:
https://review.px4.io/plot_app?log=5ed85caf-a1b8-43d5-8205-45ea4ad5bccc

Log # 3:
https://review.px4.io/plot_app?log=7b315b3b-e2b5-4969-97ad-10aae12823df

Pictures of the map are also attached below:

@nickyblanch @nickyblanch Hi,
The voxl-mapper service wasn't there when I checked that.

I went the link of voxl-mapper that you gave, but the instructions were given for the "opkg" repository.

I had done some R&D and found out that VOXL2 supports "apt".
Then I installed the required packages with the below commands:

• voxl2:/$ apt update && apt upgrade -y
• voxl2:/$ apt install voxl-portal voxl-mapper

The documentation says that "voxl-vision-px4" package is also required, but it's not available in the VOXL2.
There is another service which is called "voxl-vision-hub" that replaced "voxl-vision-px4".

• voxl2:/$ systemctl enable voxl-mapper
• voxl2:/$ systemctl start voxl-mapper

Below image shows the status of services "voxl-inspect-services" after installing/enabling/starting the mapper service.

After the installation of the "voxl-mapper" service, I do see some difference in the mapping area of the portal. But, the drone is still not following the path given in the 3D Map upon clicking the "Follow Path" (After "Plan to a Point --> Go").

Is this possible to add multiple points at the same time on the map? As of now, I am allowed to put only 1 point on the 3D Map, but the drone isn't even moving towards that point.

I tried to do the "Follow Path" while the drone is in air (Position mode), while the drone is on the ground and ready to take off (Position mode), and while the drone is in air (offboard mode). But, the drone isn't going towards the point I put, it just kept hovering.