Hi modal AI support,

I am trying to calibrate my starling 2 drone camera using openCV 6x8 chessboard (I used this command " voxl-calibrate-camera tracking_front -f -s 6x8 -l 0.038". I think my camera lens might be dull, I have a starling 2 Lens Focus Tool, but I can't find any resource to help me adjust the focus. I have attached an image of me me trying to calibrate the camera so that you clearly understand what I am trying to say. From the first image, you can see how blurry the chessboard is, In the second image, you can see that the chessboard is barely showing when the chessboard was moved inside the rectangle. The third image are what I saw in the starling 2 Lens Focus Tool.

Kindly assist.

Thanks,
Taiwo

Hi support,

I am a PhD student, and I am very new to robotics. We have 4 starling 2 drones in the lab, and right now, I have two of those drones being prepared for RMA. The drones keeps getting damaged because I don't have the right knowledge about drones. I looked up the technical documentations online, but there are still so many things I don't know. For instance, one of my drone crashed when i toggled the switch to hold mode (and it hasn't done that ever since I got it),it shot straight up very fast. I keep getting height estimate not stable (I don't even know what to do to fix that error). Also, the last working drone also drifts around when you toggle the controller to hold (the middle position). At this point, I cant even fly the drones because I might crash them again. And eventually I will get in trouble with these. Can you help with documentations that will make a beginner get all the necessary knowledge. Right now, I am just working on the drone blindly. I will be grateful if you can help with the situation.

Thanks,
Taiwo

@Eric-Katzfey No, the propellers are well positioned (that was the first thing i checked). I compared the drone with another starling 2 drone during arming, the drone not flying (the one i am trying to get fixed) makes more noise, as if the propellers are spinning with higher power while the other drone (the good one) doesnt make as much noise. Also, a point to note, the drone has been working fine since may 2025, up until two weeks ago, so I don't know what might have caused this.

@Eric-Katzfey this is the link https://nam02.safelinks.protection.outlook.com/?url=https%3A%2F%2Freview.px4.io%2Fplot_app%3Flog%3D279179dd-82e9-40f9-a09d-59d793ac34e0&data=05|02|thazeez2024%40fau.edu|3bfe3b5f99cc4a819a7708de21fe6020|63c3c9c1e824413fb4352f0cabb2828f|0|0|638985573747064624|Unknown|TWFpbGZsb3d8eyJFbXB0eU1hcGkiOnRydWUsIlYiOiIwLjAuMDAwMCIsIlAiOiJXaW4zMiIsIkFOIjoiTWFpbCIsIldUIjoyfQ%3D%3D|60000|||&sdata=CBUPqljeTJLLDWFBug33%2BjhanXLhKVMV0GVnCfanLF0%3D&reserved=0

@Eric-Katzfey HI, I have attached a flight log.

Thanks!

@Zachary-Lowell-0 Hi, let me explain what i meant by hovering mode. There is a 3-way toggle switch beside the kill switch in the transmitter (toggling down switches to position mode, toggling up switches to the autonomous mode, while toggling to the middle maintains the drone flight positioning. I have another drone that when the button is switched to the middle, it maintains the drone position (thats what i meant by hover mode). My other starling 2 drones maintains their positions when the switch is toggled to the middle position, but this particular starling 2 drone doesnt.

Hi,

My starling 2 drone was working perfectly up until two weeks ago, I wasn't in the lab last week (so i cant say if anyone tampered with it or not), but right now my propeller spins, but the drone isn't moving from the ground (it sounds like its forcefully trying to lift). Can you help with what might be the cause?

Thanks,
Taiwo

Hi Support,

Kindly assist. I have a starling 2 drone that keeps moving towards the left, sometimes right and sometimes it keeps moving up when i switch the controller to hover mode (for a very few time, it hovered at a spot), but most times, it keeps moving. What could be wrong ? It has been like this ever since it was purchased. Kindly put me through what i need to do to run diagnostics.

Thanks,
Taiwo

@taiwohazeez @Zachary-Lowell-0 , please i am still waiting for a response, an advice on how to go about Apriltag detection on starling 2 would be greatly appreciated.

Thanks

@Zachary-Lowell-0 yes, i copied that directly from the terminal after running this command voxl-inspect-detections -a tag_detections.