Skip to content
Brand Logo

ModalAI Forum
  1. ModalAI Support Forum
  2. Ask your questions right here!

Ask your questions right here!

2.4k Topics 11.7k Posts

Note sure where to post? Ask questions here for direct access to the ModalAI engineering team

Subcategories

  • 167 757
    167 Topics
    757 Posts
    Colby HowellC
    Hello. I purchased a Starling 2 Max development drone and when attempting a first flight test I discovered that one of the batteries arrived entirely dead. I was curious if there was a way to receive replacements, and if this falls within replacement territory. I contacted the support email and was directed here. I can provide more information if needed.

  • Do you have a great idea for our products you would like to see implemented?

    27 90
    27 Topics
    90 Posts
    Serhii RovnyiS
    Hello everyone, I am looking for some expert advice on a VOXL 2 companion computer setup for a long-range platform. I have two main integration challenges: Challenge A: VIO at Higher Altitudes To solve the motion blur and pixel density issues at higher altitudes, I am planning a 6-camera configuration. I want to use 4 downward-facing sensors (2 daylight + 2 IR) equipped with narrow-angle lenses, alongside 2 standard wide-angle sensors (front and rear). Could you advise on the best supported sensors (e.g., IMX series) for this? Has anyone successfully tuned the voxl-qvio-server for narrow-angle lenses, and what were the altitude limits you achieved? Challenge B: LAN Integration & WireGuard The payload data flow will be: External RTSP Camera -> Ethernet -> VOXL 2 (WireGuard encryption) -> Ethernet -> Digital RX. Because VOXL 2 lacks multiple LAN ports, I will need a miniature industrial Ethernet switch. Does ModalAI have any tested hardware recommendations for this? Furthermore, what is the best practice for routing this VPN traffic through the VOXL 2 Ubuntu environment without bottlenecking the CPU? We are currently evaluating the VOXL 2 for a broader fleet deployment and want to ensure the ecosystem can support this custom optics requirement. Any feedback on off-the-shelf solutions or standard configurations for this use case would be greatly appreciated. Thank you!

  • Are you looking for a 3D model of one of our products?

    33 86
    33 Topics
    86 Posts
    Alex KushleyevA
    @nl_vdi , if you log into developer.modalai.com, you will see the CAD models. the latest model we have is: D0012-4-V3-C28-M36-T7-K0-Starling2-Max-V3-20260317.step [image: 1781036132877-376bf0dd-494a-4bf1-8d92-1b2d91afb83d-image.png]
  • Umut JohnU

    Is it possible to estimate the wind speed?

    2
    0 Votes
    2 Posts
    589 Views
    Alex KushleyevA
    Hello @Umut-John, The concept of estimating wind speed using a quadcopter is an interesting and complicated problem. We do not provide the software that implements this feature, but there are research papers you can read which discuss this topic. For example, I came across the following publication after a quick google search : https://journals.sagepub.com/doi/full/10.1177/17568293211070824 . I do not know how good this particular approach is (I did not read it in full detail), but this paper explains the key concepts involved in estimating the wind speed using a quadcopter, such as the need for accurate attitude estimation, characterization of air frame drag as function of tilt angle), and the authors propose a Kalman Filter approach which you can investigate. Hopefully this gives you a good start - please do some more research! Alex
  • bensusanaB

    Compass suiteble with voxl1 / voxl2

    4
    0 Votes
    4 Posts
    723 Views
    Eric KatzfeyE
    @bensusana PX4 does not run on VOXL1, only on the Flight Core (Flight Deck is just a combination of the two). Flight Core should be able to support any I2C magnetometer that PX4 says it supports.
  • H

    This topic is deleted!

    1
    0 Votes
    1 Posts
    6 Views
    No one has replied
  • H

    Fusing optical flow together with VIO

    5
    0 Votes
    5 Posts
    988 Views
    Eric KatzfeyE
    @hmlow Yes, there is a SPI port on J10
  • Jose Alfredo Rosas CordovaJ

    Critical navigation error when using vision based navigation with the VOXL2

    1
    1
    0 Votes
    1 Posts
    458 Views
    No one has replied
  • NamhoN

    Missing Motor Cap for Sentinel Drone

    2
    0 Votes
    2 Posts
    465 Views
    Adrian HidalgoA
    @kimmy sorry to hear you're missing the motor cap. To clarify, the cap you're referring to, is it the conical nut or the nyloc nut? One more thing, motor color? There's either a blue or black. There's a difference in the shaft diameter and length between the two. We've been attempting to source both nuts from the motor company but nothing has come to fruition. In the mean time it is possible to find M6 nylocs and conical nuts at amazon or any fpv/hobby shop. Just make sure they are aluminium. What we've ran into is that many are out-of-stock. Hope that helps!
  • JP DroneJ

    Tracking orientation settings

    2
    0 Votes
    2 Posts
    600 Views
    JP DroneJ
    solved. I found rotate_tracking option of voxl-configure-cameras command.
  • NamhoN

    Changing 4k High-resolution Sensor in VOXL2

    1
    0 Votes
    1 Posts
    325 Views
    No one has replied
  • A

    Implementation of follow me feature on VOXL or VOXL2

    10
    0 Votes
    10 Posts
    2k Views
    S
    https://github.com/PX4/PX4-user_guide/blob/main/en/flight_modes/follow_me.md
  • Jose Alfredo Rosas CordovaJ

    AprilTag Tracking outdoors with GPS

    1
    0 Votes
    1 Posts
    526 Views
    No one has replied
  • Ed SutterE

    APQ_GPIO_70 not responding to /sys/class/gpio

    13
    0 Votes
    13 Posts
    3k Views
    Alex KushleyevA
    I am not sure about that adsp.service error.. Hmm. Would need to actually look into what it's doing. but it seems like if you just (re)move the firmware, the GPIO works.
  • S

    Blues Wireless Notecard and Modalai flight core.

    1
    0 Votes
    1 Posts
    392 Views
    No one has replied
  • H

    ToF detecting phantom obstacles?

    4
    1 Votes
    4 Posts
    875 Views
    wilkinsafW
    @hmlow It might be useful to open voxl-portal and have a look at what the tof is reading when you are seeing this phenomenon. If you would like something more in detail you could Would you be able to turn on Computer/Collision Avoidance under sdlog: SDLOG_PROFILE [image: 1679429073812-6694f651-226f-4b94-8a9f-b0558b76e87a-image.png] recreate the issue verify that PX4 is getting a detection that there is something infront of it through the logs. the message you are looking for is OBSTACLE_DISTANCE
  • C

    EXPORT CONTROLLED?

    3
    0 Votes
    3 Posts
    426 Views
    C
    Thank you so much.
  • S

    vehicle did not respond to command: MAV_CMD_DO_MOTOR_TEST

    5
    0 Votes
    5 Posts
    2k Views
    Eric KatzfeyE
    @suvasis Unfortunately, motor testing using the QGC motors tab is not supported on VOXL2.
  • R

    4 TOFs on VOXL2

    3
    0 Votes
    3 Posts
    729 Views
    R
    Thanks for the info! Just to confirm, I am asking about this post ModalAI made on LinkedIn - https://www.linkedin.com/posts/modal-ai_voxl-tof-pmd-activity-7010997849232474112-VV6a?utm_source=share&utm_medium=member_desktop This update is almost a year out? Thanks.
  • S

    ERROR: No ESC(s) detected, exiting.

    19
    0 Votes
    19 Posts
    3k Views
    Alex KushleyevA
    hi @suvasis #test voxl-esc tools cd /home/root/voxl-esc/tools ./voxl-esc-scan.py #perform ESC testing / calibration #... this was just a place holder for any testing you want to do with the voxl-esc tools. #when done, restore original libpx4.so cd /usr/lib/rfsa/adsp rm libpx4.so cp libpx4.so.bak libpx4.so systemctl enable voxl-px4 reboot This part restores the PX4 functionality, because in order to use voxl-esc tools on VOXL2, the instructions told you to disable PX4 while using voxl-esc tools. Soon we will not require disabling PX4 to use voxl-esc tools, but currently you have to do it. Please note that we just made some updated to the voxl-esc tools and directory structure has slightly changed. Also, you no longer have to download the binary tools package and add it to the voxl-esc/tools directory. Please see an example params file here : https://gitlab.com/voxl-public/voxl-sdk/utilities/voxl-esc/-/blob/dev/voxl-esc-params/old/esc_params_modalai_4_in_1_revb.xml
  • m4v3rM

    VOXL is rebooting PX4

    4
    0 Votes
    4 Posts
    875 Views
    m4v3rM
    @tom It's probably normal afterall since the voxl-vision-hub service's config file contains a parameter "reset PX4 on error". I set it to "false" and now this behaviour disappeared.
  • A

    M0025-2 Camera Alone - Camera Server Segmentation Fault

    10
    0 Votes
    10 Posts
    2k Views
    A
    I updated to the beta 1.5.3 image and this camera now works with it on its own. Thanks!
  • IChenI

    Indoor drone selection

    1
    0 Votes
    1 Posts
    291 Views
    No one has replied