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    howard

    @howard

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    Best posts made by howard

    • x&y values zero in odometry

      Hi,
      I am trying use VIO to fly my drone outdoors without gps, I am using voxl cam and have connected Pixhawk cube externally. I have followed all the steps, but in Mavlink inspector I am getting x&y odometry values as zero ,whereas it shows z value.What am I missing out? Can someone help please.

      posted in Ask your questions right here!
      H
      howard

    Latest posts made by howard

    • RE: modifying voxl-mapper

      @Matthew-Booker Screenshot_20220811-222954_WhatsApp.png
      This is the output on voxl cross.but on voxl2 we couldn't run the command for opkg.
      Can you please tell the equivalent command for voxl 2 ?

      posted in Ask your questions right here!
      H
      howard
    • RE: modifying voxl-mapper

      @Matthew-Booker
      Sorry for being late, we were trying to build the package again on voxl cross,
      We got the following error,
      https://docs.google.com/document/d/1C1fZl-i5CzY3OUXER0KUOl3I6TGEhlw1XSsiebbMCr4/edit?usp=drivesdk
      After analysis we felt that ceres server package was missing hence we installed it using the instructions provided on the ceres server page. https://ceres-solver.org/installation.html
      We even customised the build by using tye command

      cmake -DCMAKE_CXX_FLAGS="-march=native" /home/root/ceres-solver
      

      After running make install as seen in above link
      We noticed that the libceres.a file was in /usr/local/bin and not in /usr/lib64
      Hence we copied libceres.a file to usr/lib64 but we ended up getting the following error, '/usr/lib64/libceres.a: error adding symbols: file in wrong format'
      The scenario can be seen in the below document.

      https://docs.google.com/document/d/1Q_5aam02v79-E3MosS6sw1BJ_0q3x1HUCCt_twu33Ao/edit?usp=drivesdk

      Please help us in solving the error
      Thanks!

      posted in Ask your questions right here!
      H
      howard
    • modifying voxl-mapper

      Hello team,
      We wanted to modify the source code of voxl-mapper to send z coordinate. We have changed the code and now we would like to build it. We tried building it using voxl-cross but we got the following error

      CMakeFiles/Makefile2:340: recipe for target 'server/voxblox_loco_planner/CMakeFiles/voxblox_loco_planner.dir/all' failed
      make[1]: *** [server/voxblox_loco_planner/CMakeFiles/voxblox_loco_planner.dir/all] Error 2
      Makefile:135: recipe for target 'all' failed
      make: *** [all] Error 2
      

      Do we need to use voxl-emulator or something?can you please help us with this.
      thank you

      posted in Ask your questions right here!
      H
      howard
    • RE: Change home position in Voxl-mapper

      Hey, Thank you , that worked really well.

      1. Where can we find the 'voxl_mapper.cc' script in the filesystem of voxl?
      2. We are interested to provide a 3d goal point rather than only providing goal x,y coordinates with z fixed. Will point to point navigation work if a 3d goal point is provided (i.e. providing x,y and z coordinates rather than only giving x and y coordinates with a constant z) with the current package?
      posted in Ask your questions right here!
      H
      howard
    • RE: Change home position in Voxl-mapper

      @Matthew-Booker sure, will do that. Can you please elaborate a little on loco_scale_time parameter ? what does that parameter do?
      Thank you

      posted in Ask your questions right here!
      H
      howard
    • RE: Change home position in Voxl-mapper

      @Matthew-Booker No , I have changed it to trajectory

      posted in Ask your questions right here!
      H
      howard
    • RE: Change home position in Voxl-mapper

      Hey,
      So today I tried sending x and y coordinates as mentioned above, we could see the path on voxl portal and the trajectory was sent to voxl vison px4 , however when we switched to offboard mode and pressed follow button, the vehicle didn't follow the path instead it yawed by some angle and went a little forward. What could be the issue?
      Thanks!!

      posted in Ask your questions right here!
      H
      howard
    • RE: Change home position in Voxl-mapper

      Oh okay, That was helpful ,Thank you🙂

      posted in Ask your questions right here!
      H
      howard
    • RE: Error in sending trajectory to voxl-vision-px4

      @Matthew-Booker will do that, thank you!!

      posted in Ask your questions right here!
      H
      howard
    • Change home position in Voxl-mapper

      Hello,
      I would like to send the coordinates for PLAN TO POINT in Voxl-Mapper rather than selecting in the map. While going through the codes I found this line where the goal_pose is being updated.
      So can I use a python script to send goal_pose and when I click PLAN TO POINT, it plans a path to that point?
      For this where should I place the python file? How can I find the voxl-mapper package inside voxl?

      posted in Ask your questions right here!
      H
      howard