Ok, I’ve done a fair bit with wifi devices, now I’m waking up to zigbee.
Got myself an S26 R2 to play with, but just wanted to clarify a few things…
So, if I had a few of these around the house, would they form the man backbone of the zigbee mesh network? Or do they not provide that function?
And also - possibly n00b question - I presume there’s still a need / benefit to flash with esphome? Couldn’t see anything obvious on the site and only searched online for a few mins before giving up and asking for experience rather than random sites…
Zigbee devices are already cloudless local devices, you don’t have to flash them unless there are alternative firmwares that add functionality you desire.
They also need a coordinator to comunicate with HA. You can get a zigbee stick, depending on how you plan on integrating these devices there are some chipsets you should look for. If you want the easy route go for ZHA and maybe the skyconnect stick, otherwise you can go with zigbee2mqtt route which supports more devices and is more customizable and look at their list of recommended coordinators.
Most mains powered zigbee devices act as router and extend the newtork, not all of them do and not all that do are good at it. Some manufacturers use custom implementations of zigbee like Aqara which can cause issues.
I use zigbee2mqtt with a sonoff P stick and I am happy with it, it’s not as plug&play as ZHA, but it’s easy to add support to new devices if they are not already supported.