I am building a house and trying to avoid power bricks and cables hanging on the wall for motion sensors, blind shutters, “add next smart house blinky here”.

This is just an aexample photo:

example HA rooms

So I was thinking each IOT needs to have internet connection anyway. What about if I run a single CAT cable to each room, and position a switch in each room to split to couple CATs in each room (power socket, tv socket, window, ceiling fan). Main CAT from each room to go to the server room router. That way I can have one cable per room coming out from the router. And with some inexpensive POE switches in each room I can split to extra IOTs.

That way I wont be saturating the home wireless and needing expensive APs. And in the same time can deliver POE. Alternatively I can modify the CATs to run only 4 wires for 100MB network and remaining 4 for 12V if POE injection is complicated or routers cant deliver required IOT current.

I must say most IOTs will be DIY ESP/Arduino/MCUs

Is it possible you guys think?

  • seantrowbridge@alien.topBEnglish
    1·
    10 months ago

    Have a look at this video:

    https://www.youtube.com/watch?v=IBzanvRn2Hc

    Skip the ~7:00-13:30 section as it is not relevant.

    In the last segment, he goes over a conduit run from the service entrance. However, I would be running strapped-down rigid conduit since, when pulling cable, there is potential for it to flex (it will absorb the pull force, rather than the force acting on the cable only). His endpoint in the attic area is fine for single-floor homes, but for multiple floors, you will want to run those all the way to the destination.

    I would also run conduit for all the wall jacks instead of bare cable.

    recess points

    One thing you can consider: Those new LED puck recessed lighting can double as ceiling access panels. You can end some conduit near those areas. A lot less work to fish wires if you already have 75% of it done

    Here is another good reddit discussion “Deciphering what “run conduit everywhere” means for a home remodel”

    saturate the network so much

    If you use a single, low-cost wifi router, or your ISP’s CPE device, it may, yes. This is why most people are talking about adding WAPs (wireless access points), which are not routers by the way, they plug into the router (ethernet cable, PoE-powered usually) to “extend” the reach of your wireless and add capacity.