diff --git a/custom_components/localtuya/common.py b/custom_components/localtuya/common.py
index 547bad3..2d1975a 100644
--- a/custom_components/localtuya/common.py
+++ b/custom_components/localtuya/common.py
@@ -81,7 +81,6 @@ async def async_setup_entry(
         ]
 
         if entities_to_setup:
-
             tuyainterface = hass.data[DOMAIN][TUYA_DEVICES][dev_id]
 
             dps_config_fields = list(get_dps_for_platform(flow_schema))
@@ -196,7 +195,9 @@ class TuyaDevice(pytuya.TuyaListener, pytuya.ContextualLogger):
             )
             self._interface.add_dps_to_request(self.dps_to_request)
         except Exception:  # pylint: disable=broad-except
-            self.warning(f"Connect to {self._dev_config_entry[CONF_HOST]} failed attempting to connect")
+            self.warning(
+                f"Connect to {self._dev_config_entry[CONF_HOST]} failed attempting to connect"
+            )
             if self._interface is not None:
                 await self._interface.close()
                 self._interface = None
@@ -231,14 +232,10 @@ class TuyaDevice(pytuya.TuyaListener, pytuya.ContextualLogger):
                         self._interface.start_heartbeat()
                         self.status_updated(status)
                     else:
-                        self.error(
-                            f"Initial state update failed, giving up: %r", ex
-                        )
+                        self.error(f"Initial state update failed, giving up: %r", ex)
                         # return
             except (UnicodeDecodeError, json.decoder.JSONDecodeError) as ex:
-                self.exception(
-                    f"Initial state update failed, trying key update"
-                )
+                self.exception(f"Initial state update failed, trying key update")
                 await self.update_local_key()
 
                 if self._interface is not None:
@@ -266,12 +263,12 @@ class TuyaDevice(pytuya.TuyaListener, pytuya.ContextualLogger):
 
             if (
                 CONF_SCAN_INTERVAL in self._dev_config_entry
-                and self._dev_config_entry[CONF_SCAN_INTERVAL] > 0
+                and int(self._dev_config_entry[CONF_SCAN_INTERVAL]) > 0
             ):
                 self._unsub_interval = async_track_time_interval(
                     self._hass,
                     self._async_refresh,
-                    timedelta(seconds=self._dev_config_entry[CONF_SCAN_INTERVAL]),
+                    timedelta(seconds=int(self._dev_config_entry[CONF_SCAN_INTERVAL])),
                 )
 
             self.info(f"Successfully connected to {self._dev_config_entry[CONF_HOST]}")
diff --git a/custom_components/localtuya/config_flow.py b/custom_components/localtuya/config_flow.py
index 09374e5..3698af5 100644
--- a/custom_components/localtuya/config_flow.py
+++ b/custom_components/localtuya/config_flow.py
@@ -140,7 +140,7 @@ def options_schema(entities):
                 ["3.1", "3.2", "3.3", "3.4"]
             ),
             vol.Required(CONF_ENABLE_DEBUG, default=False): bool,
-            vol.Optional(CONF_SCAN_INTERVAL): cv.string,
+            vol.Optional(CONF_SCAN_INTERVAL): int,
             vol.Optional(CONF_MANUAL_DPS): cv.string,
             vol.Optional(CONF_RESET_DPIDS): cv.string,
             vol.Required(
@@ -269,7 +269,6 @@ async def validate_input(hass: core.HomeAssistant, data):
         # if manual DPs are set, merge these.
         _LOGGER.debug("Detected DPS: %s", detected_dps)
         if CONF_MANUAL_DPS in data:
-
             manual_dps_list = [dps.strip() for dps in data[CONF_MANUAL_DPS].split(",")]
             _LOGGER.debug(
                 "Manual DPS Setting: %s (%s)", data[CONF_MANUAL_DPS], manual_dps_list
@@ -599,12 +598,15 @@ class LocalTuyaOptionsFlowHandler(config_entries.OptionsFlow):
             if dev_id in cloud_devs:
                 cloud_local_key = cloud_devs[dev_id].get(CONF_LOCAL_KEY)
                 if defaults[CONF_LOCAL_KEY] != cloud_local_key:
-                    _LOGGER.info("New local_key detected: new %s vs old %s",
+                    _LOGGER.info(
+                        "New local_key detected: new %s vs old %s",
                         cloud_local_key,
-                        defaults[CONF_LOCAL_KEY]
+                        defaults[CONF_LOCAL_KEY],
                     )
                     defaults[CONF_LOCAL_KEY] = cloud_devs[dev_id].get(CONF_LOCAL_KEY)
-                    placeholders = {"for_device": f" for device `{dev_id}`.\nNOTE: a new local_key has been retrieved using cloud API"}
+                    placeholders = {
+                        "for_device": f" for device `{dev_id}`.\nNOTE: a new local_key has been retrieved using cloud API"
+                    }
             schema = schema_defaults(options_schema(self.entities), **defaults)
         else:
             defaults[CONF_PROTOCOL_VERSION] = "3.3"
diff --git a/custom_components/localtuya/pytuya/__init__.py b/custom_components/localtuya/pytuya/__init__.py
index a6870cd..cfa0618 100644
--- a/custom_components/localtuya/pytuya/__init__.py
+++ b/custom_components/localtuya/pytuya/__init__.py
@@ -449,7 +449,9 @@ class MessageDispatcher(ContextualLogger):
         try:
             await asyncio.wait_for(self.listeners[seqno].acquire(), timeout=timeout)
         except asyncio.TimeoutError:
-            self.warning("Command %d timed out waiting for sequence number %d", cmd, seqno)
+            self.warning(
+                "Command %d timed out waiting for sequence number %d", cmd, seqno
+            )
             del self.listeners[seqno]
             raise