Zibgee sensor and distance

Questions & Help
1

Hello,

I just bought the SONOFF SNZB-02P sensor to install in my bedroom. I paired it with my Homey Pro box. Everything works fine, but after a few minutes, the sensor is no longer paired with the Homey Pro box.

I thought it might be a compatibility issue and wondered if I might need the SONOFF Zigbee bridge, but when I install the sensor in the same room as the Homey Pro box, everything works and the sensor stays paired!

It’s important to note that the Homey Pro box and my bedroom are at opposite ends of the house (about 10-15 metres apart).

So I wonder if it’s simply a distance issue? Can you confirm my analysis? If that is the problem, how can I effectively extend the Zigbee network so that the Homey Pro box can communicate with devices that are too far away?

Thank you in advance for your help !

2

15m is most probably (way) too far.
To extend the range of your zigbee network, add a few mains powered zigbee devices between Homey and the sensor (they (almost) all act as zigbee router). These can be lights, sockets, switches.

Also keep in mind 2.4GHz wifi can interfere with Homey zigbee;
It’s best to set the 2.4GHz wifi channel to 1 or 6 or 11.
Next, reset Homey zigbee, this makes it select the best available zigbee channel.
→ This action will remove all zigbee devices from Homey ←

https://support.homey.app/hc/en-us/articles/10374465562652-Creating-a-stable-Zigbee-network-with-Homey-Pro-Early-2023

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3

Thanks for your reply!

I have 5GHz Wi-Fi at home, so no problem? Where do you set the 2.4GHz Wi-Fi channel to 1, 6 or 11? On your internet box? On Homey?

Edit : OK, I’ve figured out how to set up the channel.

1 Like
4

Still, 10 to 15 meters for Zigbee is too far. You shouldn’t expect a range of more than about 5 meters between (router) devices

5

With several line powered devices in between, I have managed a distance over 60 meter between Homey Pro and 8 pcs. Ikea GU10 lamps at the fence on the end of my garden. So you can cover a huge distance if you have several line powered devices in between.

6

That’s why I said “between devices”.