ᐅ Consultation for Smart Home New Construction Wireless Systems

Okay, unfortunately I don’t know anyone there at all 🙁

untergasse43 schrieb:

Okay, unfortunately I don’t know anyone there at all 🙁

It has probably always been called the Valley of the Clueless..... 🤨

I did everything without using SI units. The programming was done by myself; only the cable installations had to be carried out by an electrician since this is a new apartment from a property developer. I was glad it was still possible to plan this, even though the structural shell was already complete. In terms of costs, this was the largest item because it was billed by the hour. For 114 m² (1,225 sq ft) including materials, the extra cost was about 10,000 €. However, this does not include wiring the components themselves; the electrician just terminates everything on terminal blocks, and I handle the rest. If you have the option to choose your own tradespeople, it would probably be a bit cheaper. My electrician had to do a lot of chasing (cutting channels in the walls). There are 5 cables with a cross-section of 2.5 mm² (about 14 AWG) routed to every corner for lighting coves, air conditioning preparation, and wall-mounted presence detectors above the doors. For the corridor presence detectors, there are still junction boxes with KNX wiring in case the green cable is needed later. This makes everything more expensive, but you have to consider that KNX can't be added later without significant effort. Everything was planned without SI units, which works if you study the topic carefully. Let’s see if everything works as planned. Oh, and the components cost about 3,700 € (actuators, presence detectors, and switches with displays), all from MDT and Enertex.

untergasse43 schrieb:

Just because some people can't imagine certain things doesn't mean they are automatically "unnecessary." For example, does Alessandro drive his car around with a portable radio on the passenger seat, a fan heater at his feet, maps on the dashboard, a mobile phone clipped to the air vent, and a fuel gauge in the form of a sight glass, while manually rolling his windows up and down? I don't think so.

I am very good at imagining these things because it’s my job! I have personally completed two KNX programming courses. That’s exactly why I’m asking. So far, I haven’t found any practical smart home applications that justify the extra cost for convenience in a single-family house. I’m still waiting for examples. The function and installation described by @Mycraft to avoid locking yourself out is incredibly complex, and I still doubt it will work without covering the entire garden with sensors. I just can’t see it any other way. And that is simply way too expensive. A fingerprint lock costs around 1000 euros, offers ten times more convenience, and I can never lock myself out again (except during a power outage, but there’s an uninterruptible power supply for that).

Alessandro schrieb:

The function and installation to avoid locking yourself out is incredibly complex

Hmm, actually it’s just a side effect since nothing was purchased specifically for this purpose. The components used for shading and lighting are simply utilized to cover an additional scenario.

Ensuring presence/absence detection inside the house without having to press any buttons is extremely complex (but still possible).

Alessandro schrieb:

I still doubt that this works without...

Why? Where do you see the main issues?

P.S. The size of the garden is irrelevant.

We will minimize the risk of lockout with window contacts, the locking function of the shading when the door is open, and a corresponding insect screen.