I have a small project with a lot of reeds, some LEDs, a speaker or two and other NO contacts. All of them can be open or closed at a given time (otherwise they wouldn’t serve purpose). I need a way to check if hooked to these or the PC, running IDE.
Point is to shut the thing up when in bedroom without changing a flag in the code every darn time I test or deploy. I was thinking along lines of Serial… since that isn’t on the project.