@tom Thank you! @Jeremy-Schmidt I see that you recommend the racerstar 2216/810kv motors, do you know if the propellers from m500 match this motors?

I changed a few PX4 params stated in the link you posted. I stopped most voxl services. And then did voxl-calibrate-imu-temps first followed by voxl-calibrate-imu. Rebooted the drone and started/configured all the necessary voxl-services. Now I am able to switch to Position and Altitude. But not Offboard mode. Same error as earlier Check for a valid position estimate The drone is stationary on my desk and not flying. Can I only switch to offboard mode when the drone is in the air? Are there any params that I might be missing to make sure it switches to Offboard mode? Will installing a newer voxl version fix the issue?

@modaltb Thanks! Finding the correct mixer file solved my problem. Thank you!

@Chad-Sweet I see... let me test it out first then. Might want to consider making a note on the store page in case this affects someone else as well. For one, the photo shown on the store does not match the product that is actually being sold.

Cool I will bring it in today

Also, opkg list shows all available versions of packages, so to see what you are actually using you can run opkg list-installed

Hi @Tamas-Pal-0 , Sorry there's a typo in the docs I will fix now, but here's where the files live: voxl2:/$ find / -name *.mix /usr/lib/rfsa/adsp/quad_x.main.mix /usr/lib/rfsa/adsp/quad_x_io.main.mix The mixer and PX4IO drivers run on the DSP and this is the location for it's 'file system'.

@Daniel-Ryu The stereo sensors' lens can be adjusted which will change their focus. Looking at the videos you provided it seems to me that you should be able to achieve a lower reprojection error if you adjust the focus on the units. It looks like the VOXL1 is getting a better reprojection error number because the cameras are fairly close to in focus and there isn't much blurr/fuzz in the video stream. On your VOXL2 setup it looks to me that either the camera is out of focus or the lens is dirty. To adjust the focus on our stereo cameras twist the lens housing clockwise or counterclockwise similarly to how you would on a DSLR lens. Look closely at the stereo cams and you will see 4 flat edges. I recommend using a 6mm wrench to engage 2 of the flat edges; from there you'll be able to rotate and adjust the lens as needed. It is possible to use something like tweezers or small pliers to accomplish this however I recommend against that method because it is too easy for the tool to slip off and end up scratching the lens. To clean the lens I recommend using a clean microfiber cloth, a lens tissue, or a fresh q-tip

@Ed-Sutter Good catch, does look like that print statement is never reached, I'll move it to the correct location to avoid future confusion.

@Chad-Sweet Yep, that's likely what we'll have to do... Tx

Thanks for the quick response. This helps a lot!

I'm looking to use a parameter which was introduced in PX4 v1.12. So I'm also interested in when PX4 v1.12 for VOXL Flight will be released. Do you have any estimate on that?

@Vinny ok, thanks again..

@Ed-Sutter There is more to it than on the surface, as our SW team has gone to great lengths to figure out how to prevent corruption, so I still think it's the correct thing to follow as per that link, but we do need to educate users on the differences. Adding some type of hardware level button and "safe to remove" indicator has been in discussion for years, but the practical implementation of that (since for most use cases, we'd want it different than a smart phone) leads to a whole bunch of low-level work that may not actually succeed. These chips "think" they are in a phone, no matter what we do, so we try to work around it the best we can. I know the team still thinks about this... maybe we'll get a clean solution one of these days.

Hi, voxl-camera-server requires voxl-cross >=v2.0. This includes the proprietary packages built in, which contain some hardware specific headers and libs (like android's liblog, not voxl-logger). As for APQ camera server vs voxl camera server, The builds for the two platforms used to be separate but we managed to merge them in together recently and are working out the last few kinks in the unified voxl-camera-server, after which we will deprecate the apq specific one.

@Anton-Gereles Try to upload these parameters - https://gitlab.com/voxl-public/flight-core-px4/px4-parameters/-/blob/master/helpers/m500/ekf2_indoor_vio.params This will allow you to fly outdoors without GPS using VIO. I think this is what you are looking for? https://docs.modalai.com/flying-without-gps/