I have started working with openHAB. So far I have managed to put a door/window sensor and I have added a switch (which acts as an “Alarm enabled”). I created a rule so that when the alarm is enabled and the door changes from closed to open, it raises a notification in my Android mobile. So far so good.
What I would like is having something more obvious in my mobile: like raising an alarm tone, like when I wake up in the morning.