So you’re getting better at programming microcontrollers and now you want to do several things at once? You know better than that, microcontrollers are only capable of processing one thing at a time.

Programming C without variables is like, well, programming C without variables. They are so essential to the language that it doesn’t even require an analogy here. We can declare and use them as ...

You seem to be worried that writing to part of a structure somehow "dirties" the rest so it's no longer thread-safe. That's not how it works, a structure is really just some data laid out contiguously ...