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4 changes: 4 additions & 0 deletions source/Concepts.rst
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Expand Up @@ -20,3 +20,7 @@ For a brief video introduction to ROS 2, see this community contributed content:

* `Getting started with ROS Part 1: Nodes, Parameters and Topics <https://youtu.be/46TPAKXBOF8>`_
* `Getting started with ROS Part 2: Services and Actions <https://youtu.be/keZAJ83eEoM>`_

For a deep dive video on ROS Interfaces, see this community contributed content:

* `The ROS Interface Primer <https://youtu.be/FOTif0DWBfE>`_
6 changes: 6 additions & 0 deletions source/Concepts/Basic/About-Interfaces.rst
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Expand Up @@ -305,3 +305,9 @@ For instance, the ``Fibonacci`` action definition contains the following:

This is an action definition where the action client is sending a single ``int32`` field representing the number of Fibonacci steps to take, and expecting the action server to produce an array of ``int32`` containing the complete steps.
Along the way, the action server may also provide an intermediate array of ``int32`` containing the steps accomplished up until a certain point.

Additional Resources
--------------------
For a deep dive video on ROS Interfaces, see this community contributed content:

* `The ROS Interface Primer <https://youtu.be/FOTif0DWBfE>`_