Software Development

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  What is for "Avoidance / Collision prevention error"
  • shlee853  

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  We calibrate the stereo sensors before shipping on the Flight Decks and m500s. Not sure if you have that or the VOXL + image sensors. Without stereo calibration, yes there's likely to be issues. How about trying this and seeing how things look? https://docs.modalai.com/voxl-vision-px4-collision-prevention/#debug-tools
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  Real-time streaming solution for VOXL
  • shlee853  

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  @shlee853 Yes, voxl-streamer uses RTSP. What kind of wireless link are you using to stream the video? What application are you using to view the video? What kind of latency are you seeing with this setup? And, ultimately, what is your target latency? The answers to these questions will help guide potential solutions.
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  Fuse altitude measurements to state estimate
  altitude ekf2 range finders • • LucasW  

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  I do not think I have access to this slack. It seems restricted to a few specific people only. But I tried their forum. Thanks anyway!
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  Example to stream video via ffmpeg
  • Ruijie Geng  

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  Can you please send us the output of "ls -l /dev/frame0", the output showing hello_hal3_camera, and also ffmpeg?
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  Need newer version of GCC on VOXL
  • Rolando Fernandez  

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  libvoxl_io unfortunately won't work inside of a Docker. Are you communicating via MAVLink? If so, you can send mavlink commands to voxl-vision-px4 to be forwarded on the the flight controller over serial.
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  Building voxl-suite on Docker Image on VOXL
  • scottesicdrone  

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  Is Obstacle avoidance implemented?
  • Aldo Castro Freire  

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  How to import OpenCV in Python3?
  • Alex123  

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  @Alex123 here is the exact command I tested with on a VOXL. docker run -it --rm --privileged --net=host --name roskinetic -v /home/root:/root/yoctohome/:rw -v /sdcard:/sdcard -w /root/ roskinetic-xenial:v1.0 /bin/bash Can you try this?
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  Docker daemon fails to start on voxl
  • Alex123  

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  As I'm working on this issue, I noticed the following. yocto:/# ifconfig lo Link encap:Local Loopback inet addr:127.0.0.1 Mask:255.0.0.0 inet6 addr: ::1/128 Scope:Host UP LOOPBACK RUNNING MTU:65536 Metric:1 RX packets:32 errors:0 dropped:0 overruns:0 frame:0 TX packets:32 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:2224 (2.1 KiB) TX bytes:2224 (2.1 KiB) wlan0 Link encap:Ethernet HWaddr ::::: inet addr:192.168..** Bcast:192.168..*** Mask:... inet6 addr: :::::**/** Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:467 errors:0 dropped:0 overruns:0 frame:0 TX packets:88 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:3000 RX bytes:40293 (39.3 KiB) TX bytes:10317 (10.0 KiB) https://stackoverflow.com/questions/64028448/error-during-connect-get-http-2fvar2frun2fdocker-sock-v1-40-containers-jso It's not showing any IP address for docker0. How to configure the IP address that will listen to docker daemon on voxl-core board?
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  Save camera frames using OpenCV
  • Alex123  

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  @Eric-Katzfey Yes! There is no direct interface with the hires camera in OpenCV. I'll follow the steps as you suggested. Thanks!
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  ADB not connecting
  • jacksparkman  

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  That worked! Thanks
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  How to save images into the SD card using gphoto2.
  • Alex123  

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  @Alex123 Glad I could help!
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  adb is not working, (No ADB device detected)
  • Alex123  

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  @Alex123 I just realized right now when I was powering up my m500 that I said to use 24VDC in an email.... this is OK for that power module, but the max is 25.2VDC, so no problem dropping it to say 16VDC!
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  voxl-cam-ros
  • vaughanje  

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  Sorry for the slight delay. I was finally able to get back to this this morning. Killing voxl-rtsp fixed this issue. voxl-cam-ros will launch without issue. Thank you for the help.
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  AprilTags do not work in voxl-vision-px4
  • rapit  

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  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!
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  voxl-cam-ros stereo to PCL or depth image
  • rapit  

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  That node works like a charm, thank you so much!
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  mavros
  • vaughanje  

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  The change of port worked for me. Thank you for the help.
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  How do you control the cooling fan on VOXL and VOXL-Flight?
  voxl voxl-flight fan • • modaltb  

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  How do you control the LED on VOXL and VOXL-Flight?
  voxl voxl-flight led • • modaltb  

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  How do you disable WLAN from starting on VOXL and VOXL-Flight
  voxl voxl-flight startup wifi wlan • • modaltb  

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