Hi dimalo
and thanks for the info.
Regarding
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Direct Communication
Right now Xiaomi could close the developer API with a simple OTA update to the gateway. Or maybe we just can’t get a replacement gateway in two years if our current gateway dies.
It seems to be possible to decipher the protocol, see
articles about sniffing
and Decrypting
.
This guy is just finishing the work on a generic Zigbee gateway. Unfortunately openHAB was not on his list for early developer units.
.
Zigbee shepherd can handle Xiaomi as well it seems, see here, here and even here on openHAB.
.
So direct communication with Xiaomi zigbee components seems to be possible, but not too easy. -
Repeater: There is some talk about the repeater functionality and the problems it has with some other Zigbee components at SmartThings.com
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buying a couple of gateway is the easiest solution.
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I mean using the smoke detector’s alarm signals (sound / flashing) for other purposes. Intrusion alarm for example.
I just ordered a couple of components to start with. We will see how this evolves. At least I need to retire my old TINI Java SoC. Its been running continuously for almost 15 years now and I doubt it will last much longer. I just realize that it has Sram buffered with a lithium battery.