[ROS Q&A] 204 - How to send cmd_vel with move_base

In this ROS tutorial, you will learn how the move_base package uses cmd_vel to navigate to a goal.
🔗 This video is an answer to the following question found on ROS Answers:
answers.ros.or...
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You'll learn:
* How to launch a simulation of a Turtlebot3 inside a pre-made world.
* Launch mapping and navigation packages
* How cmd_vel is used within move_base
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