Small question : when I do call rqt_graph like you at 5:17 it only shows the talker and listener nodes and not the _ros2cli_ node although I do have a terminal window running echo /chatter. How come I don't see the echo node ?
A node is not a topic. A node will be able to publish/subscribe to a topic. And a topic will be created inside a node, but those 2 are different entities
For reading from key board After entering "ros2 run turtlesim" (06:48) I am getting error like this " usage: ros2 run [-h] [--prefix PREFIX] package_name executable_name ... ros2 run: error: the following arguments are required: executable_name, argv " Can you please tell me why this is happening
The RU-vid crash course (2h50) is free, but you have to pay for the 10h+ one (on top of publishing free tutorials I also need to pay my rent) . With this pricing you get a complete course for less than 2$ an hour :)
