What are ROS projects to practice?
Hello, I am using ROS on and off on average every 6 months. To stay active however, I would like to do more projects in ROS and do more advanced stuff (since I always go back after a long break, I most often do rudimentary IPC things, not much with RVIZ, etc.).
So I wanted to know if you guys can recommend ROS projects that one can do to practice. Something like these projects of this upcoming course: https://www.udacity.com/course/roboti... But without grading and free. Basically I am looking for advanced tutorials beyond what the wiki offers or something like the Kaggle challenges for ROS.
I wouldn't even be opposed if you can refer me to a book that contains this. But I think all the ROS books around are either obsolete and/or very basic.