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Support Request Format for Best Results

108
Topics

502
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@Inverse-AJ @rogerli
Hi, I also struggled with the OBSTACLE_DISTANCE MAVLink message not appearing in the MAVLink Inspector. Moreover, obstacle avoidance was not functioning after I upgraded v1.3.5 to ModalAI SDK v1.5.0. If you're experiencing this issue, ensure the following:

Set MPC_POS_MODE to 0 (Simple Position Control) or 3 (Smooth Position Control). The default value (4, Acceleration-based Input) is incompatible with ModalAI’s VOXL platform.
Set COM_OBS_AVOID to 1. This enables obstacle avoidance in PX4.
Set CP_DIST to a value greater than 0. This specifies the critical distance for collision prevention.
Ensure your drone has a valid home position or local position from QVIO. This is required for proper navigation.
Ensure your drone is in Position Hold mode. Obstacle avoidance requires this flight mode.

Although the OBSTACLE_DISTANCE message does not appear in the MAVLink Inspector, QGroundControl displays the obstacle distance overlay in its telemetry view, and the drone successfully performs obstacle avoidance. Note: This applies to ModalAI SDK v1.5.0; check for updates in newer versions.

f0d0fe9f-61ff-4287-9210-186dafc0879a-Untitled.jpg
Feature Requests

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

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V

Hi @Nate-The-great
Please do not delay any of your efforts or programs in anticipation of a VOXL 3 platform.
Our development roadmap is company confidential, but you can imagine we are working on many new and exciting things. One of the goals we have is to minimize disruptions should someone wish to "upgrade" platforms in the future. Similar to how we transitioned from VOXL to VOXL 2 by keeping mounting patterns the same, expansion compatibility (J13 -> J3), and plug-in board and sensor compatibility (M0048, M0030, M0084 & M0135 Camera adapters, etc), we would mimic that approach, but strive to make it even more seamless than before.

Therefore, there is very little to no risk to your system if you start developing on VOXL 2 today.

Hope that helped.
3D Models

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

19
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51
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A

M0153 step file : link

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Reconstruct ROS topics from the data received by voxl-portal?

• • Wei Cui 0

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@Wei-Cui-0 Sure, it's just http traffic. You would have to parse on your own of course and reverse engineer from the source code here

The image streams are just standard mjpeg though, so those should be easy to grab
J

lightware i2c lidar - voxl m500 with flight core v2

• • jonathankampia

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Tested on 1.12.2, seeing same issue
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Reference frames extrinsics clarification

• • afdrus

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@Moderator That makes way more sense, thank you for the clarification
As far as I could understand, there is no text saying that the .conf for the extrinsics is only used for the voxl-mapper on the modalai.docs, I think that is where my confusion came from
A

TOF camera params

• • Ariel Pomer

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@Ariel-Pomer
i forgot to mention i am using voxl-camera-server sdk-0.9
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This topic is deleted!

• • tanguy sagere

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This topic is deleted!

• • AP123

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Recommendation for drone

• • rgphx

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No one has replied
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No valid data from Compass 0

• • SMRazaRizvi

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@SMRazaRizvi A compass (magnetometer) and a GPS receiver are two completely separate sensors. GPS reception won't affect the compass.
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Sentinel drone drifts during flight

• • SMRazaRizvi

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Sentinel drone not allowing Position mode

• • SMRazaRizvi

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104
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No one has replied
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My s500 drone is not stable with altitude

• • José Quintanilla

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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)
H

VOXL2 unused/repurposed GPIO

• • hmlow

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@Vinny Great!
So happy to hear about that. Looking forwards to its availability on store soon.

Warm regards,
Jyothish.
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PX4 Params Lost

• • SMRazaRizvi

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@Moderator Here you go.

https://drive.google.com/drive/folders/1SHGs2EipV4wpoIZQzzzGKm-ze1DpTbI6?usp=drive_link
K

I did a kernel build to use hidraw driver, but the all devices are not loaded

• • kohno

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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
K

VOXL packages for x86_64 architecture

• • kerct

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K

@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.
A

Left/right cameras appear to be reversed

• • afdrus

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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 }] }
D

Why does my stereo calibration fails for extrinsics?

• • Darshit Desai

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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?
A

Hires calibration

• • afdrus

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Access the Camera calibration files for hires

• • SMRazaRizvi

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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.
K

Development on Starling V2

starlingv2 documentation • • kerct

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@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.

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