Smart home planning - is this basically suitable?

Yes, you're probably right, my thought was more about redundancy. Sitting on the pot in the dark and the presence detector acting up is just annoying.

And what if the presence detector and switch both act up? Then just install a second switch for safety? ;) Either rely on automation or stick with manual.

And what if presence detectors and switches act up? Then install a second switch as a safety measure? ;)

Either rely on automation or stick to manual.

Yes, yes! The argument is received and noted :p But that only applies to rooms where you don't "live," right? Like the entrance hall, guest WC, storage rooms, wardrobe,...... in the bedroom, I would still like to have the option to raise or lower the blinds at the push of a button.

How exactly? Multiple sensors?

No, you’re thinking of KNX. With that, for example, you can also control the light in your WC with the switch outside in the garage. But since that would be impractical (though possible and if needed also from 50 other points), if you need it, you put the light not only via PM but also additionally into the visualization and possibly on a free switch in the hallway from which you enter the WC or also additionally on the door contact or on the window contacts in the WC. So the possibilities are almost endless... and all that without the usual switch at the door.

But yes, several sensors also work if you have the money for it.

"We then only have one central switch for everything in the living/dining/cooking area" reacted with a very skeptical and incomprehensible look

Hehe, yes, that’s the usual reaction. Afterwards, the same people look askance when you tell them that you still have to press something here or there because they are used to doing nothing anymore.

so I mean a stable ceiling

So you’re building a normal bungalow with a pitched roof. Ok... yes, you can run quite a bit over it and even years later you can pull cables in with little effort.

Well, switches and wall/ceiling sensors.

From experience, switches are either completely phased out over time or their functions simply expanded by removing the old switch and connecting and parameterizing a new one. With sensors, yes, here you need/want something from time to time at position X/Y, and a good plan for the future helps here, and yes, it is possible to foresee a lot despite the common opinion that this is nearly impossible.

But this applies only to rooms where you do not "live," right? So vestibule, guest WC, storage rooms, walk-in closet, ...

But these rooms do represent a not insignificant number in a house and are often treated in terms of automation as if they were rooms where one "lives." But of course, that is not the case, and here you can well apply the budget cut.

Thank you for the detailed explanations.

So does that mean you can also create virtual sensors or buttons in the visualization? I hadn’t even considered that before and it opens up even more possibilities.
Strangely, I omitted the extra buttons in the storage rooms for exactly the argument that they are superfluous.

What do you think, apart from the unnecessary buttons, in general about the plan, including the relatively good retrofitting potential through the ceiling? Is there anything that doesn’t make sense or could be solved better?

Does that mean you can also create virtual sensors or buttons in the visual interface? I had not considered that before and it opens up even more possibilities.

What did you think you do with a visualization? There you can do things that you, for example, use rarely. You can save yourself thermostats like this, for example.

What did you think you do with a visualization? There you can then do things that you, for example, rarely use. You can save yourself thermostats that way, for example.

Virtually map the existing, physical KNX system. Somehow it never occurred to me that you can also virtualize sensors with it and thus switch actuators :rolleyes: