The ESP8266, using the Tasmota firmware, sends a signal to an MQTT server running on the Raspberry Pi, which in turn translates it to a remote trigger on the Zigbee frequency with the dongle.

With that background, converting them from Bluetooth to Zigbee is not a huge leap. All that’s needed is the Zigbee firmware from [Ivan Belokobylskiy] aka [devbis] and to follow the steps put ...

Many found that it does not effectively strengthen their Zigbee mesh network, with weak signal strength and poor routing for nearby battery-powered devices. Another common complaint is the lack of ...