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Discussion Forum to share and further the development of home control and automation, independent of platforms.

SmartHome Community

Zigbee Smart bridge
M

I'm looking for a zigbee smart bridge recommendation.
I need something I can hide in the ceiling as want to use for downlights.
I don't want a pairing button, I'm looking for another idea as don't want to pull out the ceiling to re-pair. Must work with Amazon hub, as I don't want to use manufacturers hub.
Any recommendations?

Thanks,

Zigbee
Silvercrest (LiDL) WiFi plug
M

Does anyone know if it is possible to use my old Silvercrest SWS-A1 plugs with the Link2Home app or the TCP (Aldi) app?

Zigbee
Sonoff zbmini-l and philips hue
L

Hello!

I have recently begun making my home smarter, and I've run into some trouble while trying to get my Sonoff zbmini-l, which is connected to my Philips Hue bridge, to work properly. I am able to control it individually, but not through scenes or with the Google Home app. Has anyone else encountered this problem and know of a fix? Additionally, I have another Zigbee bridge, but I am unable to find the Sonoff device on it.

Thank you in advance for your help!

PS: I am very new to this.

Zigbee
Sudden offset in temperature reading
PerHP

One of my aqara sensors suddenly stated that the temperature in the garage passed +650 degrees.. I checked, and it wasn't. 😉

Both humidity and pressure is reading normal levels - i guess this must be a HW error?

Its not dead either, just severely offset:
13d464d7-8a77-4740-95bf-6ed3a59515b8-image.png

Zigbee
Deconz
rafale77R

After researching a number of various Zigbee solutions, I have come to the conclusion that Deconz with a ConbeeII is probably the best one available, covering the two HA1.2 stacks and ZLL stacks with the widest compatibility range, even better than the ZHA or Zigbee2MQTT components of Home Assistant, and also the best maintained with regurlar firmware updates. It is really an equivalent to z-way but for zigbee. It has a rest API so I am dreaming awake of a bridge for openLuup here...

Introduction - deCONZ REST-API

Could be a good project? I may get one to play with... It could potentially enable unifying the hue devices into one network.

Zigbee
2.4Ghz band Zigbee, WIFI, BT, Microwave, Cordless Phones Interferences. What Zigbee channel to pick?
rafale77R

Kicking off this section with a quick write up on Zigbee 2.4GHz channel utilization.

Zigbee has become a very popular protocol over the past few years mostly due to its low power consumption, low chip cost (not being proprietary like z-wave was) and ease of inclusion.
It does come with a couple of downsides however ranging from single controller topography (aka single PAN coordinator) to what the title says: It uses the 2.4GHz (ISM) band which is possibly ultra saturated by other wireless protocols and even a variety of other more or less proprietary zigbee stacks. (i.e philips hue, Ikea Tradfi, Xiaomi, Plantlink etc...)
It is therefore important to make sure they don't interfere with one another.

This is a good article showing the correspondence between Zigbee and WIFI.

https://support.metageek.com/hc/en-us/articles/203845040-ZigBee-and-WiFi-Coexistence

Interferences lead to range reduction, dropped packets, more retries and lags. I have a 2.4GHz spectrum analyzer I can post some results from. I read through the zigbee alliance presentation claiming low interference but my experience demonstrates quite the opposite. When I was using SonosNET and Hue at the same time on neighboring channels, playing SONOS would kill the philips hue network.

Zigbee

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Sudden offset in temperature reading

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  • PerHP Offline
    PerHP Offline
    PerH
    wrote on last edited by PerH
    #1

    One of my aqara sensors suddenly stated that the temperature in the garage passed +650 degrees.. I checked, and it wasn't. 😉

    Both humidity and pressure is reading normal levels - i guess this must be a HW error?

    Its not dead either, just severely offset:
    13d464d7-8a77-4740-95bf-6ed3a59515b8-image.png

    1 Reply Last reply
    0
  • rafale77R Offline
    rafale77R Offline
    rafale77
    wrote on last edited by
    #2

    strange indeed... seems like a hardware problem!

    1 Reply Last reply
    0
  • PerHP Offline
    PerHP Offline
    PerH
    wrote on last edited by
    #3

    Took out the battery for a moment, and now its back.. Just a "senior moment" (well, 10 hours) i guess!

    1 Reply Last reply
    0
  • PerHP Offline
    PerHP Offline
    PerH
    wrote on last edited by
    #4

    ..and now its back at 655° again.. order a new one i guess..

    1 Reply Last reply
    0
  • I Offline
    I Offline
    iRobot
    wrote on last edited by iRobot
    #5

    If it's suppose to be around 65F° then it it could be a notation error. Mixing up decimal points and decimal comma

    US notation 65.5 would result in 655 when the notation is not set to imperial. E.g. EU notation is 65,5.

    Still doesn't explain why it changes all of the sudden though.

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    0
  • PerHP Offline
    PerHP Offline
    PerH
    wrote on last edited by
    #6

    Hm! It wasn't that, but rather when it goes below 0° C! (cold in Norway)
    I'll throw one of the others outside to see if the same happens, mabye its a flaw in the zigate plugin?

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  • akbooerA Offline
    akbooerA Offline
    akbooer
    wrote on last edited by
    #7

    Sounds like a signed value is being interpreted as an unsigned one, so the MSB is set when the temperature goes negative. I’d guess that a 16 bit value is scaled so that 32768 = 327.68 degrees. This would also be consistent with the UPnP standard representation of temperature being in units of 1/100 of a degree.

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  • PerHP Offline
    PerHP Offline
    PerH
    wrote on last edited by
    #8

    ..And this is done in the plugin, i presume? Seems like all message handling is done there in zigbee?
    I'll have a look at the code tomorrow..

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    0
  • akbooerA Offline
    akbooerA Offline
    akbooer
    wrote on last edited by
    #9

    If it’s as I think, then the fix is easy... if the value exceeds 327.67 then subtract it from that number.

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    0

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