I also find the course of the discussion a bit strange. My question really wasn’t totally off the mark. Ultimately, it’s about this: What do I need to consider so that as many situations as possible that might arise can somehow be managed when I’m not there? And also in later times, when my parents might no longer be able to take care of things. For example, I need a notification if the heating fails in winter. I have sensors for all sorts of things, but the indoor temperature in the house is not measured anywhere. I have now solved this with a simple GSM socket with a temperature sensor.
I want to have the certainty at all times that problems that arise can be solved, and that I don’t have to cut a vacation short, for example. It’s really not that hard to understand, is it?
Matthias