Software Development

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  Example compiling custom TFLite model?
  • tdewolf  

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  Hello Matt, thanks! This is super useful. When I try commenting out the delegate code I get Enabling debug mode ================================================================= skip_n_frames: 0 ================================================================= ================================================================= model: /usr/bin/dnn/running_shoe.tflite ================================================================= ================================================================= input_pipe: /run/mpa/tracking/ =================================================================------VOXL TFLite Server------Loaded model /usr/bin/dnn/running_shoe.tflite Resolved reporter Avoiding our problems.... !!!!!!!!!!!!!!!!!!!!!!! line 257------Setting TFLiteThread to ready!! W: 480 H: 640 C:3 ------Popping index 0 frame 21596 ...... Queue size: 1Fault address: 0x585e5c5b58595f Address not mapped. Segmentation fault Also, I am running a non-quantized TFLite model, when I ran the quantized version I was getting an error about an unsupported operation (that looked to be related to quantization) so I turned off quantization. I'll try the quantized version again and get you the output from that as well. If that doesn't work then I'll clean up the code and take you up on the offer to look over the scripts! Cheers,
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  Flash-system-image waiting for fastboot...
  • Gaurav Borade  

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  @PawelJ Thank you for the suggestion. Actually, I am facing another issue with my board, i.e. my board is going offline (https://forum.modalai.com/topic/289/adb-device-offline?_=1625029971070) and hence I am not able to communicate with it. Once I am able to communicate it I will check this.
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  How to install ipk package
  • Gaurav Borade  

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  finally Done Thank so much you @tom & @Eric-Katzfey https://forum.modalai.com/topic/280/station-mode-not-connecting-to-internet?_=1624012254214 I have to disable the microhard ethernet for it.
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  voxl-cam-ros
  • vaughanje  

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  @vaughanje I am with you up until this point, but I can't figure out how to kill voxl-rtsp. what command did you use for that?
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  Instructions/documentation needed on how to add new code snippet on voxl-build
  • Gaurav Borade  

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  Thank you for your reply, I will definitely try this.
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  Docker daemon fails to start on voxl
  • Alex123  

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  @shlee853 Great! I resolved this problem as you mentioned. yocto:/$ rm /data/network/files/local-kv.db yocto:/$ voxl-configure-docker-support.sh Stopping original docker service Enabling our own services docker-start & docker-prepare starting docker-start.service loading hello-world docker image successfully loaded hello-world starting docker-prepare service Created symlink from /etc/systemd/system/default.target.wants/docker-autorun.service to /etc/systemd/system/docker-autorun.service. done configuring voxl-docker-support
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  CMake errors on open example
  • shlee853  

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  This cmake file has a good example of finding OpenCV libs using cmake https://gitlab.com/voxl-public/core-libs/libmodal_exposure/-/blob/master/library/CMakeLists.txt
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  installing opencv2.4 on hellotflitegpu
  • shlee853  

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  apriltag landing
  • shlee853  

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  We are working on bringing that apriltag demo back online with the latest software right now. Hope to have a more concreate answer in the next week or two
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  QGC Android Build Error
  • Prasad Pawar  

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  Hi @Prasad-Pawar , This is a bit out of scope for us (we don't really develop for QGC, just use the standard releases typically). Have you tried https://discuss.px4.io/c/qgroundcontrol/15 ? Thanks!
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  What is for "Avoidance / Collision prevention error"
  • shlee853  

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  This thread is related to this
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  voxl-docker-mavsdk-python build problems
  • Sebastian LaPointe  

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  @Sebastian-LaPointe, I have updated the GitLab repository with changes that should fix this issue. Please let us know if the issue persists
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  Restoring Catkin Workspace
  • A Former User  

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  Hi @modaltb , Thank you for your message. I did actually choose "Yes" but it didn't store the ROS folders and files. It stored the Python packages I installed and the docker images. So, I would like to confirm if the voxl-backup command will save the folders in data. However, it is okay. I took me some time to recover but now all good. thank you again
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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?