It will indeed run with phantom power / paracitic power. Just don't cut the power.
Better questions:
a) Why do you need two Arduino's for a simple alarm clock anyway?
b) Why on earth do you want to reset one of the two?
It will indeed run with phantom power / paracitic power. Just don't cut the power.
Better questions:
a) Why do you need two Arduino's for a simple alarm clock anyway?
b) Why on earth do you want to reset one of the two?