this post was submitted on 27 Jan 2024
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I'd like to add a smart button to my HA setup. I don't have zigbee signal nearby, so I'm wondering what the best way to do this would be.

I'm using a Skyconnect dongle. There's wifi nearby. I want to control a smart switch nearby, which would also have zigbee but that also wouldn't reach the distance I need.

Is Matter a solution here? With a hub connected to wifi that bridges to the button?

Any suggestions on hardware?

Or any other suggestions?

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[–] [email protected] 9 points 10 months ago* (last edited 10 months ago) (1 children)

Can you not add a Zigbee extender?

Edit: Or just use the bottom over WiFi?

Edit 2: Or use this as an excuse to buy more Zigbee products to build up your mesh network until it reaches where you want to place the button

[–] [email protected] 2 points 10 months ago (2 children)

Are there longer range zigbee extenders? I would like to avoid having to find places for a bunch of smart plugs across the house to extend the signal.

Wouldn't wifi battery operated buttons need batteries replaced all the time, isn't that one of the reasons for something like zigbee, the low power usage?

[–] [email protected] 2 points 10 months ago (1 children)

With an extender, it's essentially a second coordinator. But it's worth mentioning that a good Zigbee network is full of routing devices, so your network should be pretty far reaching anyway.

If the button you want to set up is far away from everything else, then WiFi or Bluetooth are definitely worth considering, because it is better to change batteries more often than be forced to add a bunch of devices to get one to work.

[–] [email protected] 2 points 10 months ago (1 children)

Isn't the point of Matter that you can do this sort of thing? Have a separate zigbee network connection via a bridge that uses wifi? Is it worth using yet?

[–] [email protected] 2 points 10 months ago (1 children)

There's matter over WiFi and Matter over Thread, I've not heard of matter over Zigbee. The reason I mention it is because Matter is just how the things talk to each other, not how they talk to each other. Think like Spanish, over the Phone. Spanish being Matter. Your Sky Connect can already listen for via WiFi.

From all I've watched, Matter is still very rare and prone to dropouts.

[–] [email protected] 2 points 10 months ago* (last edited 10 months ago)

My issue is that I have some devices near my skyconnect, and that works fine. But now I basically want a second zigbee network for the smart button and plug.

My understanding is that Matter solves this by allowing you to use a zigbee bridge. The bridge connects to zigbee to talk to the button/switch, and talks to home assistant over wifi (using the Matter protocol). That way you don't have to have the zigbee network continuous. I was watching part of Home Assistant's live steam the other day that explained it a little.

I guess it's still very early for Matter, so probably my best bet is to either extend the zigbee network or get a wifi button (or wait until Matter is more mature).

Thanks for the help 🙂

[–] [email protected] 2 points 10 months ago (1 children)

You can put a coordinator in relay mode and use that, the antenna would help with the range. Get one of those outlets with USB and a right-angle cable and it'll be nice and low profile too.

[–] [email protected] 1 points 10 months ago (1 children)

If it's in relay mode, does it only need power via USB or does it still need to be plugged into a server? I don't have any nearby devices to plug it into, I'd probably need to get some mishmash of USB charger and adapter to plug in the coordinator and power it, if it can't reach straight from my HA server all the way to where I want to put the button.

[–] [email protected] 2 points 10 months ago* (last edited 10 months ago) (1 children)

Yeah, it shouldn't need anything more than USB power, it's just another node in the mesh at that point. If you don't have one of those USB outlets just use a phone brick, that should be enough.

EDIT: See THIS for more info. While that's obviously written for Z2M some of it applies to other coordinators.

[–] [email protected] 1 points 10 months ago (1 children)

Sweet, I'll have a think of where I could put one. Any idea of range for ones that have an antenna?

[–] [email protected] 2 points 9 months ago (1 children)

The product page for the sonoff dongle says 40-50 meters line-of-sight but it'll depend on your walls and wifi interference.

[–] [email protected] 1 points 9 months ago

Oh cool, thanks. None of the ones I looked at showed range info that I could see. It has to travel through a few walls, but I'm sure one will do the job with the right placement.