Connecting a remote Zigbee sensor to Home Assistant?

[koying (Chris B)]

As long as location2 will only enable zigbee devices, I second Francis that Zigbee2MQTT is the obvious choice.

If, otoh, the 2nd location would also handle other types of “local” radio, e.g. bluetooth, a “slave” HA might be considered. I created a custom component to make the “slave” and “master” communicate over MQTT.

MQTT DiscoveryStream integration

This is an “extension” (and compatible replacement) of the builtin mqtt_statestream integration. Besides the functionalities of the here-above, it also allows to publish and handles an MQTT “disvovery” setup. This is specifically useful in “Master-Slave” HA scenarios. A “slave”, by instance a specific HA instance handling zigbee and / or Bluetooth, would use this component to publish states and discovery via MQTT. A “master” would use the built-in MQTT discovery mechanism to subscribe to sta…