Switch for roller shutters on the window or on the door?

I didn’t say that. Just expressed my opinion. I think over-technologization is too much and fixed switches are comfortable. And I think app/remote control is out of the question.

Control via remote control or app is usually more cumbersome and takes longer than directly operating existing and fixed switches.

The control does not prevent technology refusers from using the switches in the traditional way they are used to with pure hardware switches. Both can peacefully coexist in parallel. In my circle of friends, it is like this – father and son are tinkerers, and the mother prefers the clear linear logic "on is on and off is off." So she can simply operate the hardware switches "as always." Even with priority. But if she does nothing (or does nothing else), the blind then retrieves the sunset time from the internet.

But don't forget the window contact, otherwise the blind will close when someone is still outside. Except, of course, if the door just slammed shut but is still open. Then the window contact won’t help either. And hopefully you’re not busy watching the moon and stars with the kids when the blind wants to go down. That would be annoying. If none of that and 1,000 other cases apply, then automation is something reasonable and certainly saves 2.4 seconds. That’s not a little time, but a pit stop in Formula 1 takes longer.

Again, of course you can do it. I see the costs (see Steffen, for example: 80,000 EUR) and the benefits (a few seconds saved per day, if everything works perfectly) as not proportional. Quite the opposite of controlled residential ventilation (12,000 EUR; 45 minutes saved per day; lower mold risk; significant energy savings; significantly lower exposure to toxins in the home; significantly less fine dust entry from outside, ...).

But if I had a fixed budget of 10 million EUR and had to spend it, I would also have every roller shutter switched three ways (locally, remotely, centrally) and switched via KNX/sun control/whatever. I’m not saying it’s nonsense. I’m just saying that in terms of cost/benefit it comes very far back. And as I said, these saved seconds still have to be maintained and renewed.

To each their own... I hardly press any buttons or switches anymore... everything just works by itself...

I also don't care whether I save a nanosecond by doing so or not... the fact is I don't even have to get up from the sofa, or press anything when coming in... I can also be sure that when I leave, the house protects itself and, for example, simulates someone being home... by occasionally moving the aforementioned blinds and turning lights on and off.

...and those are just a few examples of increased comfort... there is much, much more... the only limits are really between the ears...

But as I said, to each their own...

Therefore, it would be hardly possible for us to automate anything meaningfully. But if it’s just about going up in the morning and down in the evening - that of course works without any problems. And if that is the only requirement, then I might even automate it.

There have been small controllers from Gira and others for ages that are installed on the regular roller shutter switches (or wherever else desired) with group control and timers. We currently have that in the rental house as well (three roller shutters controlled together in the living room). I don’t think it cost much money, I guess about €200. So you don’t have to immediately swing the big sensor hammer to realize small gimmicks.

A typical Grym...

there is simply no mathematically representable automation of these interior blinds

numerous, technically unmeasurable factors

These two sentences belong somewhere on a bulletin board...(preferably at the manufacturer of the blinds)

automation from A to Z is too complicated for me

However, this is probably where the problem lies...

reprogramming and rethinking.

Is only necessary if the system was made with two left hands, the installer had no plan and no creativity in implementing the residents’ wishes...and everything works rigidly according to a fixed scheme, without a constant and autonomous adjustment to the conditions/environment (which today's systems generally can do)

But it doesn’t matter, this is about switches at the door or window and not about the sense or nonsense of automation...

So back to the topic...All further posts on this will be removed without comment...there are enough threads where one can express their opinion on this topic.