Hi All,
I know that it is an old issue but I would appreciate any suggestion to synchronise the TTS on three Sonos speakers ( two of them purchased from Ikea and the third one is an Sonos One). In isolation all of them are working ok but I can't make them to sync. I've tried the trick of having a master speaker in Sonos app but it did not work or at the best case it work initially and after that started to split. Thank you,.
Hmm, they are only 4dB so I might try one of my spare 8dB Wifi antennas.
I knew I had a spare Netgear R7000 antenna lying around. The Sonoff is just a clip together unit so dead easy to modify.
I’ll finish this off after lunch.
Nice, assume you will leave all bits under cover? Let us know the results.
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I just finished it and it's working great so far with the community driver - I just need to put it in the mailbox and see if it works there too. The antenna seems to make a difference already, last time I had to sit it next to the Hub to pair it, this time it paired from a couple of metres away without issues.
and finished:
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and now installed in the mailbox - I guess we'll see if it works soon enough. 
I have it facing the back of the mailbox because I don't want it to detect people walking past on the footpath immediately in front of the mailbox. I'm also more interested in knowing when small parcels are delivered.
I prolly should have made the antenna come out the short side, but if it works I can easily modify it.
Installing it into the mailbox immediately didn't work, so I've put it near the closest Zigbee repeater for a while and will try again tomorrow when it figured out its place in the mesh.
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The metal is a highly effective faraday cage, which is why I suggested the pcb antenna which can be relocated outside the mailbox. Maybe as a test try mounting it on the outside? Are you able to check LQI?
What’s that?
It’s only the front and rear of the box that is metal, the rest of the box is brick.
Link Quality Indicator, a measure of the quality of the signal. Not sure if we can get this metric from the hub as I've always used an xbee and XTCU software to map my mesh.
Does it work when you mount it on outside the mailbox ?
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Hmm I might see if it’s visible in the Zigbee toolbox.
No it doesn’t - I think the antenna is the issue. I’ll try a different one tomorrow.
You can check using the Zigbee logs.
...lastHopLqi:255, lastHopRssi:-49
i.e. http://YOURHUBIPHERE/hub/zigbeeLogs
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Cheers, I’ll try that.
My next Antenna victim.
Im honestly not expecting this one to work any better as it's designed for 433Mhz not 2.4Ghz, but I thought it'd be fun to try.
Is there an explanation of what the stats mean?
If you click on the "Documentation" link at the bottom of the page it gives a pretty good summary.
https://docs.hubitat.com/index.php?title=Zigbee_Logs
And then just lots of searching the forums. 
Edit: THIS is a fun read, no extra credit. 
And also THIS page turner.
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So this one will work up up until it gets halfway from the house to the mailbox - I've ordered a couple of PCB antennas to try (3DBi and 8DBi).
Nice, I havent had that much fun since I read the z-wave command class structure document! 
