I am really beginner in Linux and in electronics but I want to learn programming hardware using raspberry pi board, since I have one (model B).
I have installed raspbian os, now I want to understand how to connect RS232 and control my raspberry using my Linux PC (I learn how to do it using ssh). For me this is very interesting area but I don't know where to start and how to start. My problem is I totally don't know how to work with RS232, how to connect it and what should happen if I correctly connect RS232 to my Linux PC. Can you give some good tutorials for totally beginners (would be great with some videos)
If I made mistake in question please don't close it, let me know reason I will correct it.