Exercise 3.3 ROS Basics

Course Support ROS Basics In 5 Days (Python)
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Screenshot from 2020-04-16 17-52-27
Screenshot from 2020-04-16 17-52-271217×366 49.8 KB

Launch Code:

<launch>
   <node pkg = "unit_3_services"
         type = "call_bb8_move_custom_service_server.py" 
         name = "bb8_move_custom_service_client"  
         output ="screen" />
</launch>

I have used the correct code but my robot does not move.

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Can you share your Terminal output when launching the launch file?

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Look at line 5, you have written MyCustomServiceMessageMessage, is that correct?

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Yes, it is. This custom service message has the duration for movement. “int32 duration”

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I have corrected the error. I made a naming error and wrote it as bb_8 instead of bb8. The error didn’t show yesterday but it did today so I made the required changes.

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