esp32_ble_tracker:
  id: ble_tracker_hub

binary_sensor:
  # Explicit ble_hub_id: pins the neutral binding as a declared key.
  - platform: xiaomi_mue4094rt
    ble_hub_id: ble_tracker_hub
    name: MUE4094RT Motion
    mac_address: 7A:80:8E:19:36:BA
    timeout: 5s