$100 robot kit running ROS2 and Navigation2
I'm really struggling in learning ROS in a systematic way. The tutorials are all over the place and somehow unorganized IMO. When trying to replicate stuff on my machine, all kinds of weird errors pop up.Honestly, I don't even get what ROS is about? Like it seems it is an "amalgamation" of tools and scripts to create a general API with some ideas of robotics application in mind. Also the naming of its stack seems weird to me: tf2, MoveIt!, the over-loading of terms like joint controller, robot controller, etc...If anyone can point me to a free, coherent and hands-on  study plan or guide with exercises that actually build and run fine that would be awesome.