Ok saturday night bring me an idea...
intecom or videointercom integrated with existing EasyIOT.
The idea is to attach an arduino esp box to existing normal intercom inside home and ring on app.
Notify for ringing i suppose that is very simple. Open the door we can use a relay node.... but how to talk and respond to person ringing? arduino or raspy?
I suppose that is very interesting to add a video stream as a node (optional). If you have an ip cam you can see in your "living room" group on easyiot a cam coming from other system....just an "iframe" with an url... (in this way you can customize it...)
and in case of an intercom you can see person in front of your door....