https://sparkfun.com https://sparkfun.com tutorials. The key is to think of electronics components like functions. Each component has inputs and produces output

https://sparkfun.com https://sparkfun.com tutorials. The key is to think of electronics components like functions. Each component has inputs and produces outputs. PCBs aren’t a necessary step unless you want to make many copies of your work. They basically reduce the wiring you need to do & allow for a more compact circuit than a breadboard.