House alarm

This recipe controls the interaction between the house alarm and the front door lock:

• When the alarm is turned on, the front door should lock.
• When the lock is unlocked, the alarm should disarm.

Requirements

• House alarm
• Front door lock

Scene: Door locked when alarm armed

When the alarm is armed then lock the front door:

Note: added custom action lock.lock.

Scene: Alarm off when front door unlocks

When the door starts unlocking then disarm the alarm. This assumes that the front door lock cannot be opened without a key or code.

Note: added custom action alarm.disarm.

Problem: Scene priority

The way it stands at the moment, the door changes to state Unlocking and triggers a reevaluation of the scenes. The Door locked when alarm armed wins the match and makes the door lock itself again.

We can fix this by manually moving the Alarm off when front door unlocks scene to the top of the priority list:

Lifecycle

Trigger	Matched Scene	Action
Alarm is armed, door is unlocked	Door locked when alarm armed	Door locks
Somebody unlocks door	Alarm off when front door unlocks	Alarm is disarmed