Hello, I want to start learning robotics the way one should learn it, I heard about ROS for example but don't know where to start. I participated in FTC, but i found the competion a lot different from every thing else, FTC being super easy to set up and play with thus making learning a lot more easy. Where should I look into to find how to make a drone with Raspberry Pi and ROS for example. I'm looking for more practical approaches, and the main part that I dont understand is how to set everything up.
Thanks, in advance.