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Software Development

509 Topics 2.5k Posts

Questions about developing software on the products

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  • General questions regarding the VOXL SDK that do not fit into other categories

    132 595
    132 Topics
    595 Posts
    wilkinsafW
    Hey @arvind_g3aero So, it does look like you were able to get this working with the dev release of voxl-camera-server which is great to hear. The natural progression of a software package is through dev-> staging -> release. So, this version of voxl-camera-server will be released in a future SDK. There will most likely not be a backport onto the 1.6.2 SDK

  • General questions regarding the VOXL SDK that do not fit into other categories

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    46 Topics
    339 Posts
    ישראל בן שלמהי
    Hi ModalAI team, I’m developing a sub-250 g UAV and am trying to determine the lightest practical VOXL 2 / VOXL 2 Mini camera and sensor architecture for the aircraft. The target payload functions are: Daylight RGB video / imaging FLIR Boson+ 320 thermal video Camera input required for reliable VIO / navigation Lowest possible total camera, adapter, cabling, and interposer mass I am specifically trying to avoid carrying unnecessary stereo, ToF, or additional cameras if they are not required. Could you recommend the exact minimum hardware stack you would use for this application? In particular: For reliable VIO, can we use a single tracking camera, or is a stereo pair required/recommended? Which current ModalAI tracking camera/module would give the lowest installed mass? For RGB imaging, what is the lightest currently supported color camera/module that can provide useful daylight video? For a Boson+ 320, is the current recommended connection still: Boson → M0201 → coax → M0181 → VOXL 2 J8? Can the Boson, RGB camera, and minimum VIO camera configuration operate simultaneously on one VOXL 2 / VOXL 2 Mini? If yes, could you provide the exact ModalAI part numbers/interposers/cables required and, if available, approximate individual masses? Is there a supported camera configuration close to this, or would it require a custom voxl-camera-server configuration? The aircraft has a very tight mass budget, so I am trying to establish the absolute minimum viable sensor stack rather than starting from one of the larger development-kit camera configurations. Thanks, Yisrael

  • Questions about developing software on the products

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    74 Topics
    356 Posts
    zauberflote1Z
    Please update your VINS to our master branch here: https://gitlab.com/voxl-public/voxl-sdk/services/voxl-open-vins-server For epoch-synced cams, tracking AR0144, please use: https://gitlab.com/voxl-public/voxl-sdk/services/voxl-open-vins-server/-/tree/synced-timestamp?ref_type=heads

  • Questions about developing software on the products

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    45 Topics
    249 Posts
    T
    @Eric-Katzfey Yes that worked. Thanks!

  • Questions about developing software on the products

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    13 Topics
    64 Posts
    Zachary Lowell 0Z
    @Nitin-Varma-Vegesna said in Apriltag relocalization not relocalizing?: @Nitin-Varma-Vegesna Is there any release that is known to work for April Tag Detection? https://gitlab.com/voxl-public/voxl-sdk/services/voxl-tag-detector The dev branch is the most recent - I have to check with the engineering team on this as I am unsure the priority of april tag detection and positioning based off it. Will relay back

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    68 Topics
    336 Posts
    AniruddhaA
    @ApoorvThapliyal Thank you for your help. also I was able to work with jazzy by only subscribing and printing with node. since error only occurred when I tried to echo the topic and not when another node is subscribing it. but using docker seems like most viable option to me since I m using ubuntu 24.04. Thank you for your help again

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    20 Topics
    60 Posts
    Manoj KashyapM
    @tom can anyone help me with this

  • Questions about developing software on the products

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    2 Posts
    ModeratorM
    @Mastermind That sounds like it would be possible, but obviously depends on the driver of the wlan adapter you choose. You would need to implement the bluetooth broadcast portion of Remote ID. The source code for voxl-remote-id is here and only currently supports the Wifi portion of Remote ID
  • R

    AprilTags do not work in voxl-vision-px4

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    James StrawsonJ
    Glad you got it working, let me know if you have any more questions. Apriltag relocalization is still a fairly new feature with only me and a few other customers really using it extensively so any feedback is appreciated. Thank you!
  • R

    voxl-cam-ros stereo to PCL or depth image

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    R
    That node works like a charm, thank you so much!
  • V

    mavros

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    V
    The change of port worked for me. Thank you for the help.
  • modaltbM

    How do you control the cooling fan on VOXL and VOXL-Flight?

    voxl voxl-flight fan
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  • modaltbM

    How do you control the LED on VOXL and VOXL-Flight?

    voxl voxl-flight led
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    No one has replied
  • modaltbM

    How do you disable WLAN from starting on VOXL and VOXL-Flight

    voxl voxl-flight wlan wifi startup
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  • adminA

    Installing OpenCV-3.4.6.ipk fails on VOXL Emulator Docker Image (1.0.0)

    opencv docker voxl-emulator
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    adminA
    Total hack, but this just worked. We still need a clean way of uninstalling opencv2.4 $ opkg list | grep opencv $ opkg remove lib32-opencv --force-removal-of-dependent-packages $ opkg list | grep opencv $ opkg remove lib32-opencv-dbg --force-removal-of-dependent-packages $ opkg remove lib32-opencv-calib3d2.4 --force-removal-of-dependent-packages $ opkg list | grep opencv $ opkg remove lib32-libopencv-calib3d2.4 --force-removal-of-dependent-packages $ opkg list | grep opencv $ opkg remove lib32-libopencv-core2.4 --force-removal-of-dependent-packages $ opkg install opencv_3.4.6_8x96.ipk $ /usr/bin/opencv_version 3.4.6
  • adminA

    Cannot initialize git submodules on VOXL Emulator Docker Image (1.0.0)

    docker voxl-emulator git git-submodules
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    adminA
    We've posted a git-perltools package that should provide a workaround for this issue if you install on the either the emulator image or the target. Note at this time, when using on the emulator, you'll need to run it again after exiting... Download the git-pertools package from here: https://docs.modalai.com/docs/resources/downloads/#additional-packages Copy to the emulator (place in directory where you run the emulator from) or target (using adb push) Install using `opkg install lib32-git-perltools_2.5.0-r0_armv7a-vfp-neon.ipk' (note: some opkg warnings will display but can be ignored) You should be able to use the submodule command after this. Please let us know if you have any problems.
  • adminA

    Where do VOXL components run

    cpu gpu adsp slpi
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    adminA
    Answers to some of your questions: The VOXL is meant to be a flexible development platform that allows developers to choose where best to run the components of their application. There is documentation describing various CPU and DSP development paradigms. The GPU is typically accessed via OpenCL and OpenGL. In general, the CPU is used for most things, the "sensors DSP" (aka SLPI, SDSP) runs the flight controller (SNAV, PX4 in the near future), and the GPU offloads certain OpenCV or other applications via OpenCL / OpenGL. The "applications DSP" (aka ADSP) is not really used for anything right now but is accessible. There is also a hardware video accelerator known as "Venus" that can offload certain tasks via OpenMAX. There is flexibility with how sensors are attached to the system. Cameras primarily come in via the MIPI connectors. Each camera, however, requires custom support. There are some supported "out of the box" (eg OV7251, IMX214, etc.), while new ones would have to be developed. Cameras can also come in via USB using UVC. There are IMUs on the VOXL that can be accessed directly via the SDSP. There is GPS capability directly on VOXL (See the GPS antenna connector) that can be accessed via SNAV or else an external GPS unit can be attached via the J7 connector. There are other lots of other options as well depending on the application. Load on CPU and GPU can be monitored using our voxl-perfmon python script (https://gitlab.com/voxl-public/voxl-utils/-/blob/master/bin/voxl-perfmon). We will add DSP to this as well.
  • modaltbM

    Instructions needed on how to add new recipes to voxl-build to generate IPKs

    bitbake ipk poky voxl-build
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    adminA
    An example of how to do this was created can be found here