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    Having issues Configuring ROS on VOXL CAM

    VOXL-CAM
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    • B
      Bright Nnadi
      last edited by 5 Aug 2022, 18:51

      I am having issues configuring ROS on VOXL. A little bit confused with this.

      1 Reply Last reply Reply Quote 0
      • B
        Bright Nnadi
        last edited by 5 Aug 2022, 19:09

        I'm connected to the VOXL CAM via adb, however to view the Stereo tracking data I need to configure ROS on the VOXL CAM. when i run this command line vi ~/my_ros_env-sh, do I have to change anything on there?

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        • B
          Bright Nnadi
          last edited by 5 Aug 2022, 19:34

          When I try to rviz, this what pops up
          8ef1a988-0bf6-4015-85b8-442376ebe0ce.jpg

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          • ?
            A Former User
            last edited by 5 Aug 2022, 20:04

            Localhost refers to the running machine's ip, if you're trying to connect to the voxl's ros instance you need to configure your computer's ros to look for your drones ip.

            B 1 Reply Last reply 6 Aug 2022, 01:44 Reply Quote 0
            • B
              Bright Nnadi @Guest
              last edited by 6 Aug 2022, 01:44

              @Alex-Gardner What command lines are my using to for this configuration

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              • B
                Bright Nnadi
                last edited by 8 Aug 2022, 18:31

                @Alex-Gardner When setting up the ROS on voxl I am supposed to make any change to the ROS_MASTER_URI / ROS_IP / ROS_USERNAME. 04e09103-adc1-4ea2-9bff-d72df26fa474-image.png

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                • B
                  Bright Nnadi
                  last edited by 8 Aug 2022, 19:08

                  @Alex-Gardner Please is it possible to have a meeting with you. I have had the VOXL CAM for a while now and I am still encountering issues setting it up. Please it will be well appreciated if someone from your team can start a remote session with me for guidance.

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                  • S
                    Steve Turner
                    last edited by 8 Aug 2022, 19:31

                    @Bright-Nnadi

                    You need to set your Ubuntu development environment with ROS to point to the ROS Master process on the VOXL.

                    Check out: https://answers.ros.org/question/35603/ros_master_uri-change-it-and-save-it/

                    So for example if the IP address of the VOXL is 192.168.1.118 then you need to execute export ROS_MASTER_URI=http://192.168.1.118:11311 on the Ubuntu system and then run rviz from the same terminal.

                    You then also need to run the MAVROS or MPA ROS Bridge on the VOXL along with the ROS master node.

                    Start ros master: roscore

                    mavros: https://docs.modalai.com/mavros/

                    On the voxl you need to edit the ROS_IP to match your voxl's IP address so that other hosts can connect to it.

                    If this doesn't work, consider examining your firewall on your ubuntu system to make sure it isn't block ROS traffic. If it's a vanilla ROS/Ubuntu install you should be fine.

                    B 1 Reply Last reply 8 Aug 2022, 20:16 Reply Quote 0
                    • B
                      Bright Nnadi @Steve Turner
                      last edited by 8 Aug 2022, 20:16

                      @Steve-Turner I updated the ROS_MASTER_URI but its still saying the same thing and saying it cannot contact ROS master 9d7d2f01-d129-4a8b-b506-ff4ef018423a.jpg

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                      • B
                        Bright Nnadi
                        last edited by 8 Aug 2022, 20:22

                        Saying the same thing 0f949cb3-ad26-4db0-b6b4-1a0998e38e3d.jpg

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                        • C
                          Chad Sweet ModalAI Team
                          last edited by 10 Aug 2022, 01:47

                          Assuming you are trying to run ROS master on your VOXL, first find out what is your VOXL's IP? Let's call that <VOXL IP>

                          Then, can you ping that IP from the computer you are trying to run Rviz?

                          $ ping <VOXL IP>
                          

                          If so, on VOXL edit your ROS environment

                          export ROS_IP="<VOXL IP>"
                          

                          Then start ROS on the VOXL. Monitor the output of the ROS master when it launches, you should see the "roscore" IP the same as what you just configured.

                          If so, configure the ROS environment on your PC

                          What is the IP of your PC on the same network as the VOXL? We'll call that <PC IP>

                          Configure the PC's ROS environment as such:

                          export ROS_MASTER_URI="http://<VOXL IP>:11311"
                          export ROS_IP="<PC IP>"
                          

                          Then launch RViz

                          Note: The instructions above are configuring the master to be the VOXL by pointing both VOXL and the PC to the VOXL's IP address as master. Checkout slides 7,8,9 in the presentation here

                          B K 3 Replies Last reply 10 Aug 2022, 18:53 Reply Quote 0
                          • B
                            Bright Nnadi @Chad Sweet
                            last edited by 10 Aug 2022, 18:53

                            @Chad-Sweet thanks Chad, so I got Rviz working now !![0_1660157598192_05B72248-F814-4C2F-947E-4443E4FB94F3.jpeg](Uploading 45%)

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                            • B
                              Bright Nnadi
                              last edited by 10 Aug 2022, 19:55

                              Is the IP address of my VOXL CAM 192.168.8.1

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                              • B
                                Bright Nnadi @Chad Sweet
                                last edited by 11 Aug 2022, 14:03

                                @Chad-Sweet I’m connected to the VOXL using Adb not wifi

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                                • ?
                                  A Former User
                                  last edited by 11 Aug 2022, 18:36

                                  ROS uses wifi to communicate, not ADB. You'll need to connect the drone and you computer to the same network in order to use ros. This can either be done by connecting the drone to your home/work network or by setting the drone to serve as an AP. Instructions for either can be found here

                                  K 2 Replies Last reply 22 Aug 2022, 16:59 Reply Quote 0
                                  • K
                                    Kris @Chad Sweet
                                    last edited by Kris 18 Aug 2022, 13:26 18 Aug 2022, 13:24

                                    @Chad-Sweet I am also having the same issue. I am not sure what im doing wrong.

                                    This is my PC (my_ros_env.sh)
                                    PC my_ros_env.sh.png

                                    This is my VOXL (my_ros_env.sh)
                                    VOXL my_ros_env.sh.png

                                    This is what I get when I try to show my voxl-env
                                    VOXL env.png

                                    Setting up environment variables for ROS is a little confusing for me.

                                    I am using wifi to communicate with VOXL.
                                    My VOXL IP is the usual 192.168.8.1
                                    My PC IP is 192.168.8.78

                                    I am stuck here.
                                    Could someone please point me in the right direction?

                                    K 1 Reply Last reply 22 Aug 2022, 16:34 Reply Quote 0
                                    • K
                                      Kris @Kris
                                      last edited by 22 Aug 2022, 16:34

                                      Just wondering why my voxl environments are all blank everytime I try to view them. Should I " export " the values manually?

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                                      • K
                                        Kris @Guest
                                        last edited by 22 Aug 2022, 16:59

                                        My Voxl System Image-
                                        Voxl System Image Version.png

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                                        • K
                                          Kris @Guest
                                          last edited by 22 Aug 2022, 17:11

                                          My current voxl services-
                                          Voxl Inspect Services.png

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                                          • ?
                                            A Former User
                                            last edited by 22 Aug 2022, 17:51

                                            Hi,

                                            It looks like you're on a pretty old release of our software stack (3.3.0-0.5), you should download the latest release (3.8.0-0.7) from our downloads page and we'll be better able to support issues that you're having since there's a good chance we've fixed them in the 10 months since the 0.5 release.

                                            K 1 Reply Last reply 23 Aug 2022, 16:41 Reply Quote 0
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