How to achieve duplex communication? (listen/talk simultaneously)
For example, if I want my machine1 to send its updated status to machine2, and I also want my machine2 to also do the thing in the reverse direction. How should I do that?
constraint: - Both machines are executing some missions (e.g. path following), so it is not a duplex messaging project.
Please show me a little more detail on whatever package/method you recommend because I am a beginner on ROS (I have read almost all ROS beginner's tutorials), and my deadline is approaching.
Truly thankful.