ROS Tutorial 7: Writing a ROS Service (Python)

[@ziadadel5690]

Thank you so much for the very simple explanation. I watched almost 10 videos and nothing is close to your way. continue please

[@emilvidmark]

Thank you for your friendly comment, I will try to do some more in the near future, I just been busy lately 🙂

[@anubhabasabat1544]

You are Making ROS Very easy to understand...Thaks for your videos...And I also request you to please continue...

[@alexandrerodrigues7900]

Thank you for your videos, really helpful!

[@emilvidmark]

Thanks for telling me Alexandre!

[@kadirtunc4664]

New concept is very good ! Keep going ! :)

[@emilvidmark]

Thank you Kadir! :-)

[@thodorisspirantis1557]

In the service_server_node.py when i import from the tutorials.srv i get an error above this text that says "Import "tutorials.srv" could not be resolvedPylance" i cant solve it....HELP PLEASE

[@PraveenKumarJha-xc6ie]

tell me if you resolved
same error i am getting

[@hardaatsinghbaath7475]

Great video

[@atuldhamija7331]

Please Continue your series and cover ROS projects

[@johnnam7225]

Thank you very much ~~~

[@Kelvin-yv5th]

seems missing #!/usr/bin/env python in the beginning? I got an error but fixed after adding these line

[@abdulrahmanabdulsalam3409]

Thank you so much for making this useful tutorial.
Can you please increase the font size at least in the VSC, reading small font is painful and harmful for the viewer's eyes

[@emilvidmark]

Thank you for the feedback, I appreciate it a lot, I will fix that for future videos

[@johnnam7225]

I don't know why my service_server_node.py is not working ... after catkin_make and source devel/setup.bash and then rosrun tutorials service_server_node.py (no error, nothning come up as your tutorial)and then new terminal open rosservice list....no comes multiplier .../rosout/get_loggers and /rosout/set_logger_level only ... any idea my issue???

[@johnnam7225]

find the reason ... #!/usr/bin/env python ... first line ... Emil, do you know why??? yours is working but not mine ....why???

[@emilvidmark]

Thanks for sharing the answer John, I think other people might find this helpful!

[@harisbinyousaf6146]

Lets say that I have a robot having 4 sensors giving lets say distance data and they all are integrated with a microprocessor lets say raspberry/ jetson nano and roscore is ruinning on the microprocessor right! I want to know how does communication with my robot in that case fits in all this publishing and subscribing process. Although i got a sense of how that would happen but i am still confused of how does communication and everything lets say applying algorithms fits in all this ?Can you please help me. Would really appreciate a response!

[@d.g.7417]

Hi thank you for this series! Why do i'm getting the error: "Unknown CMake command "add_service_files" after the Catkin_make?? I modified the CMakeList like you did

[@d.g.7417]

HERE IS HOW I SOLVED:
What i was missing and according to this ->(wiki.ros.org/ROS/Tutorials/CreatingMsgAndSrv)
1) I uncomment these two lines in the package.xml:
message_generation
message_runtime
2) Inside the CMakeLists:
a) I added " message_generation" inside the "find_package"
b) I uncomment the generate_messages part

[@semabraham7072]

for someone found the problem too, the playlist not contain #6 videos , maybe we just missing some update on package.xml and cmakelist. just follow the previous video #6 ruclips.net/video/8paLh2kklJo/видео.html

[@oatkrit02]

Thank you

[@ДанилаДанько-т1г]

python 3 wants
rosservice call /multiplier "{a: 10, b: 7}" (single-;ine yaml ~= json)

[@asnaeb2]

Hi, great tut but can you do ros2 instead? Ros2 tuts are more in demand than Ros1 right now