Which sensors for what? Inspiration

Where are you building? Maybe we can find a tip for a good SI there.

So, now calmly, I didn’t manage to do it earlier. I believe it’s not quite as bad as you understood it. As already said, there is a plan and a room book. These are suggestions from him. They are already quite good. Soon we will go through the house with the electrician and decide exactly where what should go. Where a switchable socket, where a normal one, where which switch, where a PM, where ceiling lights will be, etc. Of course, I have already dealt with the subject a lot myself as far as possible. I think at least enough to understand the system and especially the purpose behind it. To say I can do it would be presumptuous, but everyone has to start somewhere. The goal is to equip the house so that everything is controllable or works. And that is also the plan. By buying our own ETS, we then want to gradually adapt the components to our own living behavior. That takes work, but I think it could actually become a hobby for me. So before we go through the house with the electrician, we would appreciate some inspiration, things you use that you say "this is really cool". And what you need for it if you want to implement it yourself. Just as much as "you mustn’t forget that", some things have already been mentioned above. Stefan Heinle’s book already contains a lot, but maybe you have some other interesting approaches.

Where are you building? Maybe we can find a tip for a good SI there.

Cologne/Bonn/Rhein-Sieg district

Where a switchable socket, where a normal one

My subsequent experience - later you always want it differently. Wire as many as possible so that you can reprogram them later in the ETS to be switchable. You don't need a switch for each one. By the way, that was one of our big mistakes, we thought about what should all be switchable and then defined a switch position for everything. This leads to an endless number of switches, which we no longer need today thanks to scenes. The same goes for the blinds - a switch for each one (6 in the living room with rocker switches, so 6 rockers) and today I use exactly 4 scenes (with single buttons). Alternatively, there are also switches with multiple levels, or room temperature controllers with a display on which switching levels can also be shown. And then there is the visualization ...

My retrospective experience – later on you always want things to be different. Wire as many as possible in such a way that you can reprogram them later in the ETS to be switchable. You don’t need a switch for each one.
By the way, that was one of our big mistakes; we thought about what should all be switchable and then defined a switch position for everything. Leads to an endless number of switches, which we don’t need anymore thanks to scenes today. Same with the venetian blinds – a switch for each (6 in the living room with rocker switches, so 6 rockers) and today I use exactly 4 scenes (with individual buttons). Alternatively, there are switches with multiple levels, or room temperature controllers with displays where switching levels can also be shown. Yes, and then the visualization as well...

I probably expressed myself incorrectly there. By switchable I don’t mean switches in the classical sense. The plan is to install a smart button from MDT only in frequently used rooms. The rest to be done via PMs. By switchable I meant more the ability to switch via the bus. Not manually.
Example: from time to time I spend time trying to figure out how to somehow integrate our Logitech Harmony. The idea so far is: a socket that “notices” voltage changes, i.e. implements "Ok, no standby on the TV" -> Harmony starts all relevant devices -> socket sends to the bus "increased current flow" -> bus sends blinds down, lights on/off as needed.
I’m currently trying to create such things in my head and of course considering what I need for that, and where.
Another example: I’m considering using the Steinel True Presence PM in the living/dining area. It also has a temperature sensor, CO2 and more. How could such a PM be used most beneficially...
Maybe it’s clearer now what kind of inspiration we are currently looking for...

My retrospective experience – later you always want it differently. Wire as many as possible so that you can later reprogram in the ETS which one should be switchable. You don’t need a switch for each one. By the way, that was one of our big mistakes, we thought about what should be switchable and then defined a switch position for everything. This leads to an endless number of switches, which we don’t need anymore today thanks to scenes. The same goes for the venetian blinds – a switch for each (6 pieces in the living room with rocker switch, so 6 rockers) and today I use exactly 4 scenes (with single buttons). Alternatively, there are also switches with multiple levels, or room temperature controllers with displays that can also show switching levels. And then also the visualization ...

Regarding Logitech Harmony and KNX. I solved it with the Merten Argus PM 630919. It has an integrated IR receiver and is also found in Logitech's database. When the TV is turned on, a group address is sent to indicate that the TV is on, and vice versa. Malfunctions are almost zero, as long as you hold the remote control roughly in the right direction. Nice side effect: I can also trigger other things on the bus with the remote control. For example, we turn on the lighting on demand, which is normally off due to the locked PM, while the TV is on. The disadvantage is that the 4 smart home buttons on my remote control only work when an action is running in Logitech. If everything is turned off, the buttons are unfortunately non-functional.