@Kris The intention with the Logitech camera was to use it with voxl-uvc-streamer as Tom pointed out. That way you have a complete working setup and then you can start changing one thing at a time to get to what you want. If you want to switch to a different camera then you can see the differences in the new camera from the Logitech camera and try to debug that way. If you want to add a record feature with GStreamer then you can fork our voxl-streamer code and add the functionality into that. If you want to do it with a gst-launch-1.0 command line pipeline then you are farther away from anything we currently support and it's going to be hard for us to offer much help. I do think that what you are trying to do should be possible.

@Eric-Katzfey I bought the Logitech C270 and tried testing it with some Gstreamer commands. So far I have been able to use it on my Linux PC with these commands. Connected to PC and viewing video; gst-launch-1.0 -v v4l2src ! video/x-raw,format=YUY2 ! videoconvert ! autovideosink Connected to PC and recording to PC; gst-launch-1.0 v4l2src device=/dev/video0 ! image/jpeg,width=640,height=480,framerate=30/1 ! jpegdec ! x264enc ! qtmux ! filesink location=C270.mp4 -e However, when I connect the C270 to the Seeker I cannot get any of these to work. I have tried different video devices 0-3 and I have also substituted the autovideosink with fakesink but these changes are still not working. Could you please show me a Gstreamer example for this Logitech C270 camera that works on the Seeker? I would like to either stream, record, or stream+record (possibly using tee) the video using gst-launch-1.0. Thank you

Thanks for the response. We have the M0025-2 (not a stereo pair). In a single image from the M0025-2, part of the image is in focus and part of the image is out of focus. It looks like the best focus distance varies across a single image from left-to-right.

Hi @Josh-Morehead S.BUS2 is not supported on ModalAI hardware (at this time). Please put your S.BUS2 device/receiver into legacy/conventional S.BUS mode. Additionally, for S.BUS receivers, please make sure you are using a cable meant for S.BUS that picks up 5V instead of the noted RC port we have which is 3.3V for Spektrum satellite receivers. This guide can help you convert a FCv1 S.BUS cable into FCv2: https://docs.modalai.com/cable-userguides/ See MCBL-00218-1 and MCBL-00064 both of which are based on MCBL-00018: https://docs.modalai.com/cable-datasheets/#mcbl-00018 We hope to have ready-made MCBL-00218/221 cables for purchase listed soon! Thanks and hope that helps.

@TPSetati Is there a chance you have two ground stations trying to connect to the drone at the same time?

It seems that the variable "external_fc" in voxl-mavlink-server.conf kept resetting to true, when it should remain false.

I have a 3 cell battery. I just looked at the vehicle settings in QGC and I see that the battery settings were set to the 4 cells. I changed it accordingly and the battery percentage now reads an acceptible 94%. Thank you.

Use cam name = "stereo" and there should be an option for using either the left or right stereo camera. As Chad pointed out you will need to also configure extrinsics if they aren't already for the stereo camera. https://gitlab.com/voxl-public/voxl-sdk/services/voxl-qvio-server/-/blob/master/server/config_file.h#L155 I have a PR to fix an issue with using a stereo camera here with the QVIO Server: https://gitlab.com/voxl-public/voxl-sdk/services/voxl-qvio-server/-/merge_requests/10 that you will need as well I believe.

@Matthew-Hood I don't know how to do that off the top of my head but it may be possible. All of what you're trying to do will be very difficult without having some kind of network connection to the drone in order for you ground station to communicate with it over a network

we tried a few different altitudes ranging from 30 feet AGL to 100 at 5 m/s. Same result. These test flights weren't long rang, the entire mission was only 2 waypoints, approximately 250 feet length mission. We'll try these test flights again using voxl-logger and try and diagnose the issues we're having.

Sure @hmlow here is a schematic snippet of that section so you have all the info: [image: 1680627538383-7c56d0e9-6cd1-488e-9b30-a189e04b455a-image.png]

@nshahrestani Sure, Here is the 4G modem: https://docs.modalai.com/lte-modem-and-usb-add-on-v2-datasheet/#power-consumption and Microhard 900MHz for reference: https://docs.modalai.com/microhard-add-on-datasheet/#power-consumption I think I need to add a section for the 5G modem.

We really don't have anything better, sorry. The Sentinel is really intended to be a development platform, and not support any mission critical activities.

Just tried to calibrated the stereo camera using ROS camera calibrator. Had to run the fixed voxl-mpa-to-ros. Because the ROS calibrator expects left and right to be exactly synchronized.

I'm using the Setinel. voxl-suite: 0.9.5

Good day We are working on a Sentinel with VOXL2 and are getting a similar CMD warning as well as similar INFO logs. The documentation for VOXL MPA to ROS says "Coming soon", so does the voxl-mpa-to-ros package also work for VOXL2 on Sentinel?

@José-Quintanilla As seen in the doc, the only port that supports hires is J2