this post was submitted on 02 Aug 2024
30 points (100.0% liked)

homeassistant

12015 readers
84 users here now

Home Assistant is open source home automation that puts local control and privacy first. Powered by a worldwide community of tinkerers and DIY enthusiasts. Perfect to run on a Raspberry Pi or a local server. Available for free at home-assistant.io

founded 1 year ago
MODERATORS
GreatAlbatross@feddit.uk
30
Home Wiring (lemmy.ml)
submitted 3 months ago by abeorch@lemmy.ml to c/homeassistant@lemmy.world
16 comments fedilink hide all child comments
 

This might be tangential to HomeAssistant but Im currently thinking about a household renovation and one thing I am considering is wiring.

I have some POE devices along with many other that run with a 12v DC supply.

I'm lookin at putting in a relatively straightforward 12v battery UPS with a small solar panel to charge. I probably only have space for 1500W of panels so putting in a whole grid tied solution is overkill. Primarily this is to provide backup as we sometimes lose power.

Networking wise I think I will put RJ45 into each room as we are concrete reinforced construction and so signal quality is an issue.

My query was how feasible it is to run both standard PEO devices and 12v devices (1-2w) all over POE.

I thought the alternative would be to run separate 12v cables with USB connectors at the end into each room as well as Rj45

Is anyone else doing this in their home?

you are viewing a single comment's thread
view the rest of the comments
[–] grue@lemmy.world 18 points 3 months ago (1 children)

Let me see if I've got the picture:

  • You're renovating (walls are accessible now)
  • Your walls are concrete (walls won't be easy to modify later)
  • You're not sure what cables you need

Obvious solution: run conduit.

[–] abeorch@lemmy.ml 4 points 3 months ago (2 children)

Haha of course it s going to be conduit. But its what to put in it. Just 230v ac or add 12v dc or POE or both.

[–] grue@lemmy.world 6 points 3 months ago (1 children)

Well you definitely don't want to put the power cables in the same conduit with the data cables (PoE being the exception). Run two conduits (one for power, one for data) separated by the distance specified by your local electrical code (probably at least a foot or so, and wider is better). If the conduit is metallic, then the spacing can be less.

In those conduits, run:

  1. The wires you actually know you need right now, and
  2. A pull string.
[–] abeorch@lemmy.ml 2 points 2 months ago

Yeah .. Definitely will put conduits in .

[–] eutampieri@feddit.it 6 points 3 months ago

Don’t mix low voltage DC with AC :)