Staying in a subroutine

[PerryBebbington]

@bengineer08

I can't seem to make this work cleanly. loop() will continuously call setupmode().

Is there a way to call setupmode() and stay there until I flip the switch back? Or is there a better way to handle this situation?

Either write setupmode() so that it works correctly while repeatedly called (this is possible, but I am not sure if you have the skills as you are asking the question)

OR

Put this inside setupmode();

while(digitalRead(setuppin) == HIGH) {
// Setup mode code
}

However, if you do the second of my suggestions you will find you have actually done most of what you need for the first.