Hi, I am really interested in learning electronics (which I know virtually nothing about). I saw some videos about Arduino and RPi, and think they're really cool.
But I have one problem with these products. They're already made for you, and you simply use them. I can see how the Arduino can be useful for electronics projects, but it doesn't really tell me how/why the Arduino does what it does.
I would like to know how to create my own circuit, from scratch, that can do what the Arduino/RPi does. Is this possible, or too difficult?
I really want to have a low-level understanding of electronics. I don't know where to start, or what resources would be helpful.
EDIT: Like, for example, I would like to be able to get into the mindset of the people who made the Arduino/RPi, and understand how they made them and everything they knew about the various components (chips on the circuit, pins, capacitors, etc.)
Thanks in advance,
Alex.

