You can make a routine with the door sensor and a virtual device, for example called a reminder:
IF:
- open sensor open during x minutes
and - virtual switch reminder = Off
THEN
- virual switch reminder = On and turn Off after “y” minutes
- Send notification
This will send you a notification when it is open for x minutes
It will send you a notification every y minutes while the door is still open.
In example first notification at 1 minute and every 2 minutes
You can also made the routine with the garage light itself.
- If when the garage door is opened the light comes on and you put it to turn off after x minutes.
- If the light goes out and the door is still open, turn the light on and turn it off after y minutes and send a notification.
It’s the same, but without virtual switch