It was a glorious "click" when learning embedded programming. Even when writing Rust in typical desktop uses, it all feels... abstract. Computer program logic.

It was a glorious "click" when learning embedded programming. Even when writing Rust in typical desktop uses, it all feels... abstract. Computer program logic. Where does the magic happen? Where do you go from abstract logic to making things happen? The answer is in voltatile memory reads and writes to memory-mapped IO. You write a word to a memory address, and a voltage changes. Etc.