diff --git a/custom_components/localtuya/common.py b/custom_components/localtuya/common.py
index 547bad3..1018934 100644
--- a/custom_components/localtuya/common.py
+++ b/custom_components/localtuya/common.py
@@ -196,7 +196,9 @@ 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 +233,10 @@ 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 +264,12 @@ 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..0e72e09 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(
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