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General Questions

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  • Can I connect VOXL IO and VOXL ESC at the same time?

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    My setup is planning to use both the IO expander and a voxl ESC. Is there any update on support for using both simultaneously?
  • H265 streaming using voxl-streamer

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  • Is offboard mode broken in voxl-px4 SDK 1.0?

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  • voxl-health-check fails

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    @Eric-Katzfey The RC is bind with the drone and it is able to control the drone. However, the check shows that there is no connection. Is the RC not bind correctly? Furthermore, when I perform takeoff and landing using the mavsdk program, there is an error on Visual Failure. Is the error in voxl-camera-server causes this error? [image: 1694482026732-offboard-takeoff-3.png]
  • Mavlink communication

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    tomT
    @SHofmeester VOXL1 isn't fully supported with SDK 1.0 so I wouldn't expect things to work just yet. The amount of time from voxl-suite 0.7.0 to 1.0.0 is a few years so I'm sure there is a long list of reasons why your program no longer works
  • VOXL2 Mini Camera Configuration Instability

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  • Voxl 2 vs Voxl 2 Mini comparison and rotor configuration

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  • Development on Starling V2

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    Eric KatzfeyE
    @kerct Not that I am aware of. You could look into Gazebo and see if there is a way to add that. Or you could create your own Gazebo extension to do this.
  • Access the Camera calibration files for hires

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    @afdrus Yes I figured that there are no camera intrinsics provided for the Hires camera. I obtained these params by myself.
  • Hires calibration

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  • Why does my stereo calibration fails for extrinsics?

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    @Moderator thank you for the reply, by board I meant the checkboard used for the calibration not the PCB. However, I watched the video, but it looks old because the current extrinsics procedure is asking me to move the checkboard in 4 poses whereas the video is showing only 2 poses. How much tilt should the checkboard have during the extrinsics calibration process in order to have a low calibration error?
  • Left/right cameras appear to be reversed

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    @James-Strawson Thanks for the reply! Now I am facing a new issue though, after I swapped the camera ids the calibration of the extrinsics is asking me to move the checkboard in only three locations instead of four, as a result the reprojection error keeps being high, is this a bug? Result of the new extrinsics: Calibrating Extrinsics 4 frames will be processed R [-0.2178154138909582, 0.5612314553199155, 0.7984833742984259; 0.6516188344157804, -0.5254512170251917, 0.5470776116433248; 0.7266012249550162, 0.6394687420712871, -0.2512576124371861] T [-0.5933205685053882; -0.3699353785761611; 0.8991646361380521] Re-projection error reported by stereoCalibrate: 71.628572 Detected horizontal stereo pair Distance between cameras: 0.5933 Extrinsics Calibration Failed exceeded allowable max reprojection error: 0.5 voxl-camer-server with ids already swapped, the stereo in question is stereo_rear, { "version": 0.1, "cameras": [{ "name": "tracking", "enabled": true, "frame_rate": 30, "type": "ov7251", "camera_id": 2, "ae_desired_msv": 60, "ae_filter_alpha": 0.600000023841858, "ae_ignore_fraction": 0.20000000298023224, "ae_slope": 0.05000000074505806, "ae_exposure_period": 1, "ae_gain_period": 1 }, { "name": "hires", "enabled": true, "frame_rate": 30, "type": "imx214", "camera_id": 3, "preview_width": 640, "preview_height": 480, "snapshot_width": 3840, "snapshot_height": 2160 }, { "name": "stereo_front", "enabled": true, "frame_rate": 30, "type": "ov7251", "camera_id": 0, "camera_id_second": 1, "independent_exposure": false, "ae_desired_msv": 60, "ae_filter_alpha": 0.600000023841858, "ae_ignore_fraction": 0.20000000298023224, "ae_slope": 0.05000000074505806, "ae_exposure_period": 1, "ae_gain_period": 1 }, { "name": "stereo_rear", "enabled": true, "frame_rate": 30, "type": "ov7251", "camera_id": 4, "camera_id_second": 5, "independent_exposure": false, "ae_desired_msv": 60, "ae_filter_alpha": 0.600000023841858, "ae_ignore_fraction": 0.20000000298023224, "ae_slope": 0.05000000074505806, "ae_exposure_period": 1, "ae_gain_period": 1 }] }
  • VOXL packages for x86_64 architecture

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    @Moderator Besides extracting out the libraries and running them on an ARM based computer, how else can we simulate VOXL's behaviour? From what I understand for HITL, we are only interfacing with voxl-px4 but not other services like voxl-vision-hub.
  • I did a kernel build to use hidraw driver, but the all devices are not loaded

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    ModeratorM
    We're not really sure how we can help you. What are you trying to achieve? Is there a specific device you are trying to work with? The kernel should work as other Linux kernels, so if you have made this change elsewhere the steps should be similar
  • PX4 Params Lost

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    @Moderator Here you go. https://drive.google.com/drive/folders/1SHGs2EipV4wpoIZQzzzGKm-ze1DpTbI6?usp=drive_link
  • VOXL2 unused/repurposed GPIO

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    Jyotish KumarJ
    @Vinny Great! So happy to hear about that. Looking forwards to its availability on store soon. Warm regards, Jyothish.
  • My s500 drone is not stable with altitude

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    @José-Quintanilla Was this solved? If yes, how? I'm having a similar issue where the drone is constantly drifting towards its right/left (Mostly right, but sometimes left too)
  • Sentinel drone not allowing Position mode

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  • Sentinel drone drifts during flight

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  • No valid data from Compass 0

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    Eric KatzfeyE
    @SMRazaRizvi A compass (magnetometer) and a GPS receiver are two completely separate sensors. GPS reception won't affect the compass.