added AES support, hardened connection setup

custom_components/hunterdouglas_powerview_ble/const.py

@@ -1,8 +1,9 @@
 """Constants for the BLE Battery Management System integration."""
 
 import logging
+from typing import Final
 
-from bleak.uuids import normalize_uuid_str
+# from bleak.uuids import normalize_uuid_str
 
 # from homeassistant.const import (  # noqa: F401
 #     ATTR_BATTERY_CHARGING,
@@ -12,11 +13,12 @@ from bleak.uuids import normalize_uuid_str
 # )
 
 
-DOMAIN = "hunterdouglas_powerview_ble"
-LOGGER = logging.getLogger(__package__)
-UUID = normalize_uuid_str("fdc1")
-MFCT_ID = 2073
-TIMEOUT = 15
+DOMAIN: Final = "hunterdouglas_powerview_ble"
+LOGGER: Final = logging.getLogger(__package__)
+MFCT_ID: Final = 2073
+TIMEOUT: Final = 15
+HOME_KEY: Final = b""
+
 
 # attributes (do not change)
 ATTR_RSSI = "rssi"