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  4. Sudden offset in temperature reading
High temperature sensor for Zigbee
R

I have an oven that I need to manage the temperature of, keeping it in the neighborhood of 600° C (1100° F). I have not been able to find a Zigbee-enabled solution to measure temps that high. Does anyone know if such a thing exists? If not, any ideas for how to roll a custom solution that I could integrate into a Sonoff ihost controller? I have no trouble finding high temperature probes, but none of them interface with my automation stack.

Zigbee
Hue Tap Dial compatible online switch
F

I have got mainly hue bulbs around the house, apart from a couple of places where it wasn't practical or pretty enough.

In those cases I put in sonoff in line switches so I can control them remotely. But now I'm wanting to further upgrade by replacing most of my light switches with Hue Tap dials (and add some fittings in where I tend to not want lots of light, but will need it some time). Then I can easily switch between different profiles and have guests do the same.

Does anyone know if I can get a replacement for the sonoffs that can be recognised in Hue so that I can control it with the Tap Dials?

Or alternatively any good alternatives to replacing the light switches with smart controllers?

Thanks

Zigbee
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

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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              0
              • 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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                0
                • 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..

                  1 Reply Last reply
                  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.

                    1 Reply Last reply
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