diff --git a/homeassistant/components/maxcube/binary_sensor.py b/homeassistant/components/maxcube/binary_sensor.py
index f24f56e52d7..f674ec38d37 100644
--- a/homeassistant/components/maxcube/binary_sensor.py
+++ b/homeassistant/components/maxcube/binary_sensor.py
@@ -1,16 +1,26 @@
 """Support for MAX! binary sensors via MAX! Cube."""
+from __future__ import annotations
+
 from homeassistant.components.binary_sensor import (
     BinarySensorDeviceClass,
     BinarySensorEntity,
 )
+from homeassistant.core import HomeAssistant
 from homeassistant.helpers.entity import EntityCategory
+from homeassistant.helpers.entity_platform import AddEntitiesCallback
+from homeassistant.helpers.typing import ConfigType, DiscoveryInfoType
 
 from . import DATA_KEY
 
 
-def setup_platform(hass, config, add_entities, discovery_info=None):
+def setup_platform(
+    hass: HomeAssistant,
+    config: ConfigType,
+    add_entities: AddEntitiesCallback,
+    discovery_info: DiscoveryInfoType | None = None,
+) -> None:
     """Iterate through all MAX! Devices and add window shutters."""
-    devices = []
+    devices: list[MaxCubeBinarySensorBase] = []
     for handler in hass.data[DATA_KEY].values():
         for device in handler.cube.devices:
             devices.append(MaxCubeBattery(handler, device))
diff --git a/homeassistant/components/mazda/sensor.py b/homeassistant/components/mazda/sensor.py
index 6ef0d160b3b..ee42b989c49 100644
--- a/homeassistant/components/mazda/sensor.py
+++ b/homeassistant/components/mazda/sensor.py
@@ -1,22 +1,31 @@
 """Platform for Mazda sensor integration."""
+from __future__ import annotations
+
 from homeassistant.components.sensor import SensorEntity
+from homeassistant.config_entries import ConfigEntry
 from homeassistant.const import (
     LENGTH_KILOMETERS,
     LENGTH_MILES,
     PERCENTAGE,
     PRESSURE_PSI,
 )
+from homeassistant.core import HomeAssistant
+from homeassistant.helpers.entity_platform import AddEntitiesCallback
 
 from . import MazdaEntity
 from .const import DATA_CLIENT, DATA_COORDINATOR, DOMAIN
 
 
-async def async_setup_entry(hass, config_entry, async_add_entities):
+async def async_setup_entry(
+    hass: HomeAssistant,
+    config_entry: ConfigEntry,
+    async_add_entities: AddEntitiesCallback,
+) -> None:
     """Set up the sensor platform."""
     client = hass.data[DOMAIN][config_entry.entry_id][DATA_CLIENT]
     coordinator = hass.data[DOMAIN][config_entry.entry_id][DATA_COORDINATOR]
 
-    entities = []
+    entities: list[SensorEntity] = []
 
     for index, _ in enumerate(coordinator.data):
         entities.append(MazdaFuelRemainingSensor(client, coordinator, index))
diff --git a/homeassistant/components/mcp23017/switch.py b/homeassistant/components/mcp23017/switch.py
index 5c4c06a585a..f9211538f56 100644
--- a/homeassistant/components/mcp23017/switch.py
+++ b/homeassistant/components/mcp23017/switch.py
@@ -1,4 +1,6 @@
 """Support for switch sensor using I2C MCP23017 chip."""
+from __future__ import annotations
+
 import logging
 
 from adafruit_mcp230xx.mcp23017 import MCP23017
@@ -9,8 +11,11 @@ import voluptuous as vol
 
 from homeassistant.components.switch import PLATFORM_SCHEMA
 from homeassistant.const import DEVICE_DEFAULT_NAME
+from homeassistant.core import HomeAssistant
 import homeassistant.helpers.config_validation as cv
 from homeassistant.helpers.entity import ToggleEntity
+from homeassistant.helpers.entity_platform import AddEntitiesCallback
+from homeassistant.helpers.typing import ConfigType, DiscoveryInfoType
 
 CONF_INVERT_LOGIC = "invert_logic"
 CONF_I2C_ADDRESS = "i2c_address"
@@ -33,7 +38,12 @@ PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend(
 _LOGGER = logging.getLogger(__name__)
 
 
-def setup_platform(hass, config, add_entities, discovery_info=None):
+def setup_platform(
+    hass: HomeAssistant,
+    config: ConfigType,
+    add_entities: AddEntitiesCallback,
+    discovery_info: DiscoveryInfoType | None = None,
+) -> None:
     """Set up the MCP23017 devices."""
     _LOGGER.warning(
         "The MCP23017 I/O Expander integration is deprecated and will be removed "
@@ -48,7 +58,7 @@ def setup_platform(hass, config, add_entities, discovery_info=None):
     mcp = MCP23017(i2c, address=i2c_address)
 
     switches = []
-    pins = config.get(CONF_PINS)
+    pins = config[CONF_PINS]
     for pin_num, pin_name in pins.items():
         pin = mcp.get_pin(pin_num)
         switches.append(MCP23017Switch(pin_name, pin, invert_logic))
diff --git a/homeassistant/components/microsoft_face/__init__.py b/homeassistant/components/microsoft_face/__init__.py
index 1604c77614f..19bfef1349c 100644
--- a/homeassistant/components/microsoft_face/__init__.py
+++ b/homeassistant/components/microsoft_face/__init__.py
@@ -1,4 +1,6 @@
 """Support for Microsoft face recognition."""
+from __future__ import annotations
+
 import asyncio
 import json
 import logging
@@ -9,11 +11,12 @@ import async_timeout
 import voluptuous as vol
 
 from homeassistant.const import ATTR_NAME, CONF_API_KEY, CONF_TIMEOUT, CONTENT_TYPE_JSON
-from homeassistant.core import ServiceCall
+from homeassistant.core import HomeAssistant, ServiceCall
 from homeassistant.exceptions import HomeAssistantError
 from homeassistant.helpers.aiohttp_client import async_get_clientsession
 import homeassistant.helpers.config_validation as cv
 from homeassistant.helpers.entity import Entity
+from homeassistant.helpers.typing import ConfigType
 from homeassistant.util import slugify
 
 _LOGGER = logging.getLogger(__name__)
@@ -67,9 +70,9 @@ SCHEMA_FACE_SERVICE = vol.Schema(
 SCHEMA_TRAIN_SERVICE = vol.Schema({vol.Required(ATTR_GROUP): cv.slugify})
 
 
-async def async_setup(hass, config):
+async def async_setup(hass: HomeAssistant, config: ConfigType) -> bool:
     """Set up Microsoft Face."""
-    entities = {}
+    entities: dict[str, MicrosoftFaceGroupEntity] = {}
     face = MicrosoftFace(
         hass,
         config[DOMAIN].get(CONF_AZURE_REGION),
diff --git a/homeassistant/components/mochad/__init__.py b/homeassistant/components/mochad/__init__.py
index 6f560aa9ed6..114ade17740 100644
--- a/homeassistant/components/mochad/__init__.py
+++ b/homeassistant/components/mochad/__init__.py
@@ -11,7 +11,9 @@ from homeassistant.const import (
     EVENT_HOMEASSISTANT_START,
     EVENT_HOMEASSISTANT_STOP,
 )
+from homeassistant.core import HomeAssistant
 import homeassistant.helpers.config_validation as cv
+from homeassistant.helpers.typing import ConfigType
 
 _LOGGER = logging.getLogger(__name__)
 
@@ -34,7 +36,7 @@ CONFIG_SCHEMA = vol.Schema(
 )
 
 
-def setup(hass, config):
+def setup(hass: HomeAssistant, config: ConfigType) -> bool:
     """Set up the mochad component."""
     conf = config[DOMAIN]
     host = conf.get(CONF_HOST)
@@ -42,8 +44,8 @@ def setup(hass, config):
 
     try:
         mochad_controller = MochadCtrl(host, port)
-    except exceptions.ConfigurationError:
-        _LOGGER.exception()
+    except exceptions.ConfigurationError as err:
+        _LOGGER.exception(str(err))
         return False
 
     def stop_mochad(event):
diff --git a/homeassistant/components/mochad/light.py b/homeassistant/components/mochad/light.py
index a3a06a58ea5..a966d0ad9f6 100644
--- a/homeassistant/components/mochad/light.py
+++ b/homeassistant/components/mochad/light.py
@@ -1,4 +1,6 @@
 """Support for X10 dimmer over Mochad."""
+from __future__ import annotations
+
 import logging
 
 from pymochad import device
@@ -12,7 +14,10 @@ from homeassistant.components.light import (
     LightEntity,
 )
 from homeassistant.const import CONF_ADDRESS, CONF_DEVICES, CONF_NAME, CONF_PLATFORM
+from homeassistant.core import HomeAssistant
 from homeassistant.helpers import config_validation as cv
+from homeassistant.helpers.entity_platform import AddEntitiesCallback
+from homeassistant.helpers.typing import ConfigType, DiscoveryInfoType
 
 from . import CONF_COMM_TYPE, DOMAIN, REQ_LOCK
 
@@ -36,12 +41,16 @@ PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend(
 )
 
 
-def setup_platform(hass, config, add_entities, discovery_info=None):
+def setup_platform(
+    hass: HomeAssistant,
+    config: ConfigType,
+    add_entities: AddEntitiesCallback,
+    discovery_info: DiscoveryInfoType | None = None,
+) -> None:
     """Set up X10 dimmers over a mochad controller."""
     mochad_controller = hass.data[DOMAIN]
-    devs = config.get(CONF_DEVICES)
+    devs = config[CONF_DEVICES]
     add_entities([MochadLight(hass, mochad_controller.ctrl, dev) for dev in devs])
-    return True
 
 
 class MochadLight(LightEntity):
diff --git a/homeassistant/components/mochad/switch.py b/homeassistant/components/mochad/switch.py
index d23d46c8392..7175955d81a 100644
--- a/homeassistant/components/mochad/switch.py
+++ b/homeassistant/components/mochad/switch.py
@@ -1,4 +1,6 @@
 """Support for X10 switch over Mochad."""
+from __future__ import annotations
+
 import logging
 
 from pymochad import device
@@ -7,7 +9,10 @@ import voluptuous as vol
 
 from homeassistant.components.switch import SwitchEntity
 from homeassistant.const import CONF_ADDRESS, CONF_DEVICES, CONF_NAME, CONF_PLATFORM
+from homeassistant.core import HomeAssistant
 from homeassistant.helpers import config_validation as cv
+from homeassistant.helpers.entity_platform import AddEntitiesCallback
+from homeassistant.helpers.typing import ConfigType, DiscoveryInfoType
 
 from . import CONF_COMM_TYPE, DOMAIN, REQ_LOCK
 
@@ -28,12 +33,16 @@ PLATFORM_SCHEMA = vol.Schema(
 )
 
 
-def setup_platform(hass, config, add_entities, discovery_info=None):
+def setup_platform(
+    hass: HomeAssistant,
+    config: ConfigType,
+    add_entities: AddEntitiesCallback,
+    discovery_info: DiscoveryInfoType | None = None,
+) -> None:
     """Set up X10 switches over a mochad controller."""
     mochad_controller = hass.data[DOMAIN]
-    devs = config.get(CONF_DEVICES)
+    devs = config[CONF_DEVICES]
     add_entities([MochadSwitch(hass, mochad_controller.ctrl, dev) for dev in devs])
-    return True
 
 
 class MochadSwitch(SwitchEntity):
diff --git a/homeassistant/components/mqtt_statestream/__init__.py b/homeassistant/components/mqtt_statestream/__init__.py
index d0a13a7384b..5213f675460 100644
--- a/homeassistant/components/mqtt_statestream/__init__.py
+++ b/homeassistant/components/mqtt_statestream/__init__.py
@@ -6,6 +6,7 @@ import voluptuous as vol
 from homeassistant.components import mqtt
 from homeassistant.components.mqtt import valid_publish_topic
 from homeassistant.const import MATCH_ALL
+from homeassistant.core import HomeAssistant
 import homeassistant.helpers.config_validation as cv
 from homeassistant.helpers.entityfilter import (
     INCLUDE_EXCLUDE_BASE_FILTER_SCHEMA,
@@ -13,6 +14,7 @@ from homeassistant.helpers.entityfilter import (
 )
 from homeassistant.helpers.event import async_track_state_change
 from homeassistant.helpers.json import JSONEncoder
+from homeassistant.helpers.typing import ConfigType
 
 CONF_BASE_TOPIC = "base_topic"
 CONF_PUBLISH_ATTRIBUTES = "publish_attributes"
@@ -34,9 +36,9 @@ CONFIG_SCHEMA = vol.Schema(
 )
 
 
-async def async_setup(hass, config):
+async def async_setup(hass: HomeAssistant, config: ConfigType) -> bool:
     """Set up the MQTT state feed."""
-    conf = config.get(DOMAIN)
+    conf = config[DOMAIN]
     publish_filter = convert_include_exclude_filter(conf)
     base_topic = conf.get(CONF_BASE_TOPIC)
     publish_attributes = conf.get(CONF_PUBLISH_ATTRIBUTES)
diff --git a/homeassistant/components/mvglive/sensor.py b/homeassistant/components/mvglive/sensor.py
index 29554e89c5d..d3405d0cce7 100644
--- a/homeassistant/components/mvglive/sensor.py
+++ b/homeassistant/components/mvglive/sensor.py
@@ -1,4 +1,6 @@
 """Support for departure information for public transport in Munich."""
+from __future__ import annotations
+
 from copy import deepcopy
 from datetime import timedelta
 import logging
@@ -8,7 +10,10 @@ import voluptuous as vol
 
 from homeassistant.components.sensor import PLATFORM_SCHEMA, SensorEntity
 from homeassistant.const import ATTR_ATTRIBUTION, CONF_NAME, TIME_MINUTES
+from homeassistant.core import HomeAssistant
 import homeassistant.helpers.config_validation as cv
+from homeassistant.helpers.entity_platform import AddEntitiesCallback
+from homeassistant.helpers.typing import ConfigType, DiscoveryInfoType
 
 _LOGGER = logging.getLogger(__name__)
 
@@ -40,7 +45,7 @@ SCAN_INTERVAL = timedelta(seconds=30)
 
 PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend(
     {
-        vol.Optional(CONF_NEXT_DEPARTURE): [
+        vol.Required(CONF_NEXT_DEPARTURE): [
             {
                 vol.Required(CONF_STATION): cv.string,
                 vol.Optional(CONF_DESTINATIONS, default=[""]): cv.ensure_list_csv,
@@ -58,10 +63,15 @@ PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend(
 )
 
 
-def setup_platform(hass, config, add_entities, discovery_info=None):
+def setup_platform(
+    hass: HomeAssistant,
+    config: ConfigType,
+    add_entities: AddEntitiesCallback,
+    discovery_info: DiscoveryInfoType | None = None,
+) -> None:
     """Set up the MVGLive sensor."""
     sensors = []
-    for nextdeparture in config.get(CONF_NEXT_DEPARTURE):
+    for nextdeparture in config[CONF_NEXT_DEPARTURE]:
         sensors.append(
             MVGLiveSensor(
                 nextdeparture.get(CONF_STATION),