Realize lighting ambiance and lighting scenes in new construction?

  • Erstellt am 2023-01-08 18:28:37

Allthewayup

2023-01-10 11:24:23
  • #1
We actually had about 25k in additional costs for all KNX scopes in our new build. It strongly depends on the needs (wishes) of the users and what the budget allows. With conventional electrics and KNX, we come to about 55k total costs for the new build. There are hardly any limits upwards.

I had dealt with Raspberry Pi for a while, but it eventually became too complicated for me, so we decided to order it "ready-made" including initial programming, and for that, we are now paying accordingly.
 

allstar83

2023-01-10 20:49:09
  • #2


So if the whole thing is supposed to be conventional electrical wiring, it could possibly also be solved with Shellys. Here switching should still be possible in case of radio failure.

For the scenes, you would take, for example, a Shelly I4 WiFi switch. It can switch various scenes.
For the lamps, you need either Shelly 1 or 2.5 or Shelly Dimmer 2 as actuators for lights and sockets. You need deep boxes or, I guess, a sub-distribution or something like that in the living room.

Estimates for a living room: 15 actuators. Cost per Shelly actuator about €30. Wiring about €15. Deep boxes and sub-distribution €300? = €975 per living room additionally. Plus your own time to configure scenes and Shellys.

Shellys can also be integrated via skills through Alexa etc. The app is also available or quite easily integrated through Home Assistant.

But I would get several opinions on this.
 

OWLer

2023-01-10 20:52:37
  • #3
To switch color temperatures, Shellys come up against their limits as far as I know. I was planning the same, but everything based on Shelly would have needed some kind of bridge or a Raspberry Pi in the end. That's why I switched to Hue the day before yesterday. I don't feel very comfortable with the solution, but I do appreciate the low-effort setup.
 

Patricck

2023-01-11 18:18:05
  • #4
Shelly is a makeshift solution for me for a few circuits, but not as a complete home automation.

Because they run over WLAN, as most devices do today, you have a fairly high load on the WLAN.
Then there is the fact that when changing a router, and the internet providers are always immediately involved when there are problems, all devices have to be relearned.

In addition, a reliable reception must be ensured.

Then there is the fact that the router manufacturer provides new firmware and suddenly, nothing works anymore. Which is apparently the case with OS7.50 at AVM.
For my Pixel WLED controller, I had to find a solution so that it works again.
 

Allthewayup

2023-01-12 12:56:53
  • #5


With conventional electrical work, in correspondingly large and functionally comprehensive rooms (e.g. combined living/dining/kitchen area), there is always the "visual problem" that a lot of switches come together and you tend to always press the wrong one. That annoyed me in so many houses in the past. If several light circuits are present, blinds, heating control, ventilation, etc. are mounted next to and above each other, you have about 4-8 buttons in close proximity and it looks accordingly. If you want to do it "smart" anyway, you best clear these switches onto a 6- or 8-fold assignable button. That was actually our intention and that’s why it ultimately became KNX.

Our first offer was based on Homematic IP, but only the blinds were planned to be wireless, the rest was added little by little.

So think carefully whether the "smart" should only be limited to one area in your house or if you want to take a step further right away. Now, even electricity meters will be digital or even smart in the future.

It would actually trigger me if in the end the government would be the initiator for the "smartest" component in my house :-D
 

allstar83

2023-01-12 13:07:28
  • #6
At first, it is about lighting, not home automation with all its trimmings. Load? A reasonable switch with one WiFi and that's fine in my opinion. Reception? Anyone who doesn’t pay attention to this in new buildings and implement it through access points is poorly advised. If the internet doesn’t work or, for example, some gateway with Homematic or Loxone Miniserver, then problems must always be expected. I think one should always be aware of that.
 

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