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FAQs

68 Topics 297 Posts

Commonly asked questions we get from the community

  • ADB or Wi-Fi no longer communicating!?!

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  • Remote ID Invalid - Is an updated script available?

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    Eric KatzfeyE
    @JB1 Our voxl-remote-id software with WiFi dongle is intended only for reference and is not meant to be a commercially ready system for our customers who need a remote id solution for their VOXL2 based drone products. Integration, testing, validation, and FAA registration with desired hardware is up to the end user. At a minimum the manufacturer id would need to be changed from ModalAI's id to your companies issued manufacturer id.
  • M0193 lead time

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  • Image Sensor Hardware Design and Integration Guide

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  • Starling 2 Max

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    Alex KushleyevA
    Hi @Nikola-Rudjer , The forum is for technical support -- for sales questions, please reach out to us via https://www.modalai.com/pages/contact-us Alex
  • Starling2 Max and Starling 2 Datasheet

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  • Starling2 Starling2 Max Information Request

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  • Expedited Shipping?

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  • How to upgrade OpenSSL

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    Alex KushleyevA
    @chengyouzen , have you tried building OpenSSL from source (you should be able to do it directly on VOXL1)? That may be the only way.. Alex
  • Stinger Vision FPV configuration

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    tomT
    @Tutu-Wen No, stinger has no GPS Yes Yes, all compute is onboard and the VOXL SDK is open source:https://gitlab.com/voxl-public/voxl-sdk
  • Calibration yaml for M0061

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    Alex KushleyevA
    Hello @daz_22 , The ideal intrinsics of the IMX412 camera module (M0161) are as follows: Full resolution: focal length : 1999 (~2000) pixels principal points: 2028, 1520 (for full frame image, such as 4056x3040 or 4040x3040) 2x2 Binned resolution focal length : 1000 pixels principal points : 2028/2, 1520/2 For other resolutions, you can adjust the principal points to be half of the width and height because the cropped image (in case of 3840x2160 or 1920x1080) will be centered. The lens model is fisheye and you should set the distortion coefficients to zeros unless you calibrate them. If you are going to calibrate the camera using voxl-calibrate-camera, it is very slow at full resolution, so i suggest calibrating at half resolution. Here is an old calibration result I found for one of these cameras, just for reference: %YAML:1.0 --- M: !!opencv-matrix rows: 3 cols: 3 dt: d data: [ 999.5391440104593, 0.0, 1016.522606127024, 0.0, 998.2572561064064, 750.2875966666587, 0.0, 0.0, 1.0 ] D: !!opencv-matrix rows: 4 cols: 1 dt: d data: [ -0.02176119101007071, 0.01025514886831165, -0.01688007838706262, 0.006525270203215156 ] reprojection_error: 0.72238 width: 2020 height: 1520 distortion_model: fisheye calibration_time: "2024-11-15 16:38:58"
  • This topic is deleted!

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  • Indoor Mapping from Autonomous to Floorplan

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  • How to deploy onto NPU of Sentinel?

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    G
    @tom Thanks Tom. I already checked the link. I understand that for gpu delegate "gpu" needs to be specified in /etc/modalai/voxl-tflite-server.conf. My question is what value needs to be used in this configuration file to trigger npu deployment. According to my exploration, specifying "npu" is the same as specifying "gpu". cpu monitoring reports there are 8 cpus for sentinel. Which of the 8 cpus are opus? Looking forward to hearing from you.
  • Starling 2 Max main voltage

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    K
    Thanks..
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  • Connect station mode

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    Sarah McMahonS
    Hi, were you able to find a solution I ran into the same problem.
  • Support - information About Indoor mapping and localization

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    ModeratorM
    @Usama-Hamayun You should use Starling 2 for indoor mapping https://modalai.com/starling-2
  • 360 avoidance

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    wilkinsafW
    @James-Strawson This is perfect! Thank you James!
  • The function set by pipe_client_set_camera_helper_cb is not called.

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    Alex KushleyevA
    @kclee2001 , if I understand correctly.. you are connecting a USB camera to voxl2-mini and using voxl-uvc-server to read the camera images and send them out via MPA voxl-streamer is used to receive the raw frames from voxl-uvc-server, then compress and stream the video to another computer via rtsp protocol for testing purposes, you are disconnecting the USB camera from voxl2-mini voxl-streamer keeps running, but it has no input frames to encode and send out, so it does nothing if you plug the USB camera back into voxl2-mini and restart voxl-uvc-server, the video stream resumes. It sounds to me that the system is operating properly, but it just does not recover from unplugging the camera. If you would like the voxl-uvc-server to recover from unplugging the camera, then you can do the following: run voxl-uvc-server in foreground and see what happens when you unplug the USB camera (does it print any error messages) modify voxl-uvc-sever to exit if it detects camera disconnection : https://gitlab.com/voxl-public/voxl-sdk/services/voxl-uvc-server check the systemd service for voxl-uvc-server to make sure it is restarted automatically if it exits one thing to double check: if the voxl-uvc-server restarts before you plug the USB camera back in, will the voxl-uvc-server automatically detect it, or the camera needs to be plugged in before the voxl-uvc-server is restarted. (the reason why i am asking is because i don't have a usb camera to test this). Alex