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  Screw size for IMX377/M0026
  • ryan_meagher  

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  micrortps setup via voxl_io
  • ryan_meagher  

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  @Alex-Kushleyev Thanks for the help, still working on this bridge but have made some progress, able to create io_rpc functions and add some stuff to voxl-vision and am now able to get messages in my docker container with ros2 launch px4_ros_com <launch_file>
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  VOXL mainboard appears to be dead
  • kiprock  

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  "Failed - Network error" when downloading VOXL Emulator 1.7.tgz
  • svenzyme  

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  Thanks for the support. Today, I was able to download VOXL Emulator 1.7.tgz successfully
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  Building ROS node with OpenCV
  • sarahl  

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  @Chad-Sweet Hey, I updated my voxl to the newest system image and after doing so my docker is using docker-start.service while before it was using docker-daemon.service. Not sure why this has changed, but I have updated the above instructions and wanted to let you know so you could change this in the documentation. Is there a reason why this would have changed after flashing a new system image onto the device? Both times I configured my docker by using voxl-configure-docker-support.sh
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  Not going in Position mode
  • gauravshukla914  

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  @Chad-Sweet No I have not changed the firmware. The firmware version is 1.11.3. I have also attached the picture of it in my previous comments. We are running out of ideas now. @Cliff-Wong - Thanks for the video. We did set the aid mask explicitly to 280 multiple times and rebooted PX4, but still no luck
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  VOXL flight connection with PX4
  • gauravshukla914  

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  @gauravshukla914 no problem, glad it helped
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  read/write raw video data in FIFO
  • shlee853  

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  @Alex-Kushleyev great! That’s a point what I need. I’ll try it Thanks,
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  VOA feature reference
  • shlee853  

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  @Chad-Sweet voxl-dfs-server is for voxl-vision-px4 ver 0.8.1. version 0.6.8 is not used voxl-dfs-server. could you please let me know based of voxl-vision-px4 ver 0.6.8? Thanks,
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  Follow a moving apriltag
  • Alfonso Ponce  

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  @Alex-Gardner thank you!
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  Auto-reestablishing Connection over Radio on Disconnect
  • FourPointTwoMm  

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  @FourPointTwoMm Interesting, I was under the impression that the Microhard modems would auto-reconnect to each other when they came back in range. This is something we will have to test.
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  Apt-get functionality
  • Arrowtec  

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  The Yocto OS uses opkg which is similar to, but not compatible with, aptitude Aptitude is used in Debian/Ubuntu distros. You can run one on VOXL using Docker as documented here: https://docs.modalai.com/docker-on-voxl/
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  VOA/April Tag Expected Release for 0.3.4
  • PawelJ  

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  Hi @Chad-Sweet , Thank you for the details. I appreciate the links for following along so I can begin some of my integration process. Apologies for chomping at the bit, I'm excited to get the entire system up and running
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  Collision Warning sign
  • manzur  

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  @Chad-Sweet Update: I have performed the calibration process as you mentioned for both Stereo camera and tracking camera by following the calibration documentation https://docs.modalai.com/calibrate-cameras/ though they are not moved from their original position of VOXL flight deck. While performing the calibration for stereo cameras I have also fixed the focus for both left and right camera. But after the calibration process the collision prevention does not seem to be working any more. By that I mean the the obstacle topic does not seems to detect anything even it is very close or far from the wall. I also tried with different object to see if the camera can pick up the difference but it does not seems to be consistent any more. At 0 degree angle it mostly shows 0 m. It only shows some value while it is in the ground but once flying it is completely 0 m in withing +- 30 deg angle range. After several try I decided to perform the calibration process again, and after the process I found same result. I also tried to change the CP_dist from QGC parameter ranging from 0.5- 10 meter but it does not seems to work anymore. Then i realized I have made a big mistake by not saving the default calibration.stereo.xml file for calibration and then I found the sample calibration file in the voxl-camera-calibration git folder which then I replaced it with the calibrated file. Once this process is complete I then fly the Modal AI m500 and it worked almost as before but the CP_dist value of 1.5 m seems now too much and we reduced it to 0.8 meter. This the sample calibration.xml snippet from the git hub link: I also noticed the focal_length_x and y for calibrated camera is ranging from 488-490 for both camera value which is much higher value after the calibration process compared with the sample calibration file shown above. Please let us know what can be done to correct this calibration problem or at least how I can obtain the default factory calibration data from modal ai.
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  Issue in Microhard paring with Slave unit
  • manzur  

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  @manzur Interesting, thank you for the information! Perhaps I was wrong about the default Network ID, I will take a note of that.
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  Avoidance Question
  • kiprock  

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  Hi @Chad-Sweet it appears that I am on voxl-suite 0.2.0 as indicated above. However, if QGC reports that avoidance system is unavailable and the vehicle will not arm. If I run voxl-vision -s I can see the obstacle debug info on the terminal, also I set "en_voa": true, Any suggestions as to what I am doing wrong?
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  Question about Apriltag Configuration
  • shlee853  

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  Hi @shlee853 , There's a pretty good tutorial from our Guru here: https://www.youtube.com/watch?v=0j7CjmDvluM -Travis
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  Spektrum transmitter binds, but RC signals not appearing
  • mvxl500  

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  @mvxl500 like Chad mentioned, typically with the PX4/QGC setup you have to power cycle PX4 after binding: From: https://docs.modalai.com/configure-rc-radio/
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  avahi not working
  • plusk01  

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  Were you able to get this working? If not, we can take a look again.
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  Tracking camera type for voxl-flight deck
  • shlee853  

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  TBC is the translation from IMU to camera, OMBC is the rotation You can see 2D and 3D drawings on the datasheets page which should help you make the measurements https://docs.modalai.com/voxl-datasheet-functional-description/ Start by trying to recreate the known sets on the Flight Deck, and then make adjustments from there.