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 ...

Zigbee2MQTT enables Zigbee devices to communicate with your home automation software via MQTT. Utilizing a Raspberry Pi as a dedicated Zigbee hub provides flexibility in device placement.