diff --git a/CODEOWNERS b/CODEOWNERS
index b20b489ac6d..e4e2ab59615 100644
--- a/CODEOWNERS
+++ b/CODEOWNERS
@@ -253,6 +253,7 @@ homeassistant/components/launch_library/* @ludeeus
 homeassistant/components/lcn/* @alengwenus
 homeassistant/components/life360/* @pnbruckner
 homeassistant/components/linux_battery/* @fabaff
+homeassistant/components/litejet/* @joncar
 homeassistant/components/litterrobot/* @natekspencer
 homeassistant/components/local_ip/* @issacg
 homeassistant/components/logger/* @home-assistant/core
diff --git a/homeassistant/components/litejet/__init__.py b/homeassistant/components/litejet/__init__.py
index 9977bb9bdb4..0c8f59c4127 100644
--- a/homeassistant/components/litejet/__init__.py
+++ b/homeassistant/components/litejet/__init__.py
@@ -1,49 +1,86 @@
 """Support for the LiteJet lighting system."""
-from pylitejet import LiteJet
+import asyncio
+import logging
+
+import pylitejet
+from serial import SerialException
 import voluptuous as vol
 
+from homeassistant.config_entries import SOURCE_IMPORT, ConfigEntry
 from homeassistant.const import CONF_PORT
-from homeassistant.helpers import discovery
+from homeassistant.core import HomeAssistant
+from homeassistant.exceptions import ConfigEntryNotReady
 import homeassistant.helpers.config_validation as cv
 
-CONF_EXCLUDE_NAMES = "exclude_names"
-CONF_INCLUDE_SWITCHES = "include_switches"
+from .const import CONF_EXCLUDE_NAMES, CONF_INCLUDE_SWITCHES, DOMAIN, PLATFORMS
 
-DOMAIN = "litejet"
+_LOGGER = logging.getLogger(__name__)
 
 CONFIG_SCHEMA = vol.Schema(
-    {
-        DOMAIN: vol.Schema(
-            {
-                vol.Required(CONF_PORT): cv.string,
-                vol.Optional(CONF_EXCLUDE_NAMES): vol.All(cv.ensure_list, [cv.string]),
-                vol.Optional(CONF_INCLUDE_SWITCHES, default=False): cv.boolean,
-            }
-        )
-    },
+    vol.All(
+        cv.deprecated(DOMAIN),
+        {
+            DOMAIN: vol.Schema(
+                {
+                    vol.Required(CONF_PORT): cv.string,
+                    vol.Optional(CONF_EXCLUDE_NAMES): vol.All(
+                        cv.ensure_list, [cv.string]
+                    ),
+                    vol.Optional(CONF_INCLUDE_SWITCHES, default=False): cv.boolean,
+                }
+            )
+        },
+    ),
     extra=vol.ALLOW_EXTRA,
 )
 
 
 def setup(hass, config):
     """Set up the LiteJet component."""
+    if DOMAIN in config and not hass.config_entries.async_entries(DOMAIN):
+        # No config entry exists and configuration.yaml config exists, trigger the import flow.
+        hass.async_create_task(
+            hass.config_entries.flow.async_init(
+                DOMAIN, context={"source": SOURCE_IMPORT}, data=config[DOMAIN]
+            )
+        )
+    return True
 
-    url = config[DOMAIN].get(CONF_PORT)
 
-    hass.data["litejet_system"] = LiteJet(url)
-    hass.data["litejet_config"] = config[DOMAIN]
+async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry) -> bool:
+    """Set up LiteJet via a config entry."""
+    port = entry.data[CONF_PORT]
 
-    discovery.load_platform(hass, "light", DOMAIN, {}, config)
-    if config[DOMAIN].get(CONF_INCLUDE_SWITCHES):
-        discovery.load_platform(hass, "switch", DOMAIN, {}, config)
-    discovery.load_platform(hass, "scene", DOMAIN, {}, config)
+    try:
+        system = pylitejet.LiteJet(port)
+    except SerialException as ex:
+        _LOGGER.error("Error connecting to the LiteJet MCP at %s", port, exc_info=ex)
+        raise ConfigEntryNotReady from ex
+
+    hass.data[DOMAIN] = system
+
+    for component in PLATFORMS:
+        hass.async_create_task(
+            hass.config_entries.async_forward_entry_setup(entry, component)
+        )
 
     return True
 
 
-def is_ignored(hass, name):
-    """Determine if a load, switch, or scene should be ignored."""
-    for prefix in hass.data["litejet_config"].get(CONF_EXCLUDE_NAMES, []):
-        if name.startswith(prefix):
-            return True
-    return False
+async def async_unload_entry(hass: HomeAssistant, entry: ConfigEntry):
+    """Unload a LiteJet config entry."""
+
+    unload_ok = all(
+        await asyncio.gather(
+            *[
+                hass.config_entries.async_forward_entry_unload(entry, component)
+                for component in PLATFORMS
+            ]
+        )
+    )
+
+    if unload_ok:
+        hass.data[DOMAIN].close()
+        hass.data.pop(DOMAIN)
+
+    return unload_ok
diff --git a/homeassistant/components/litejet/config_flow.py b/homeassistant/components/litejet/config_flow.py
new file mode 100644
index 00000000000..e1c7d8ab7b9
--- /dev/null
+++ b/homeassistant/components/litejet/config_flow.py
@@ -0,0 +1,53 @@
+"""Config flow for the LiteJet lighting system."""
+import logging
+from typing import Any, Dict, Optional
+
+import pylitejet
+from serial import SerialException
+import voluptuous as vol
+
+from homeassistant import config_entries
+from homeassistant.const import CONF_PORT
+
+from .const import DOMAIN
+
+_LOGGER = logging.getLogger(__name__)
+
+
+class LiteJetConfigFlow(config_entries.ConfigFlow, domain=DOMAIN):
+    """LiteJet config flow."""
+
+    async def async_step_user(
+        self, user_input: Optional[Dict[str, Any]] = None
+    ) -> Dict[str, Any]:
+        """Create a LiteJet config entry based upon user input."""
+        if self.hass.config_entries.async_entries(DOMAIN):
+            return self.async_abort(reason="single_instance_allowed")
+
+        errors = {}
+        if user_input is not None:
+            port = user_input[CONF_PORT]
+
+            await self.async_set_unique_id(port)
+            self._abort_if_unique_id_configured()
+
+            try:
+                system = pylitejet.LiteJet(port)
+                system.close()
+            except SerialException:
+                errors[CONF_PORT] = "open_failed"
+            else:
+                return self.async_create_entry(
+                    title=port,
+                    data={CONF_PORT: port},
+                )
+
+        return self.async_show_form(
+            step_id="user",
+            data_schema=vol.Schema({vol.Required(CONF_PORT): str}),
+            errors=errors,
+        )
+
+    async def async_step_import(self, import_data):
+        """Import litejet config from configuration.yaml."""
+        return self.async_create_entry(title=import_data[CONF_PORT], data=import_data)
diff --git a/homeassistant/components/litejet/const.py b/homeassistant/components/litejet/const.py
new file mode 100644
index 00000000000..8e27aa3a0a7
--- /dev/null
+++ b/homeassistant/components/litejet/const.py
@@ -0,0 +1,8 @@
+"""LiteJet constants."""
+
+DOMAIN = "litejet"
+
+CONF_EXCLUDE_NAMES = "exclude_names"
+CONF_INCLUDE_SWITCHES = "include_switches"
+
+PLATFORMS = ["light", "switch", "scene"]
diff --git a/homeassistant/components/litejet/light.py b/homeassistant/components/litejet/light.py
index efc6830d775..27ce904cc2c 100644
--- a/homeassistant/components/litejet/light.py
+++ b/homeassistant/components/litejet/light.py
@@ -1,43 +1,53 @@
 """Support for LiteJet lights."""
 import logging
 
-from homeassistant.components import litejet
 from homeassistant.components.light import (
     ATTR_BRIGHTNESS,
     SUPPORT_BRIGHTNESS,
     LightEntity,
 )
 
+from .const import DOMAIN
+
 _LOGGER = logging.getLogger(__name__)
 
 ATTR_NUMBER = "number"
 
 
-def setup_platform(hass, config, add_entities, discovery_info=None):
-    """Set up lights for the LiteJet platform."""
-    litejet_ = hass.data["litejet_system"]
+async def async_setup_entry(hass, config_entry, async_add_entities):
+    """Set up entry."""
 
-    devices = []
-    for i in litejet_.loads():
-        name = litejet_.get_load_name(i)
-        if not litejet.is_ignored(hass, name):
-            devices.append(LiteJetLight(hass, litejet_, i, name))
-    add_entities(devices, True)
+    system = hass.data[DOMAIN]
+
+    def get_entities(system):
+        entities = []
+        for i in system.loads():
+            name = system.get_load_name(i)
+            entities.append(LiteJetLight(config_entry.entry_id, system, i, name))
+        return entities
+
+    async_add_entities(await hass.async_add_executor_job(get_entities, system), True)
 
 
 class LiteJetLight(LightEntity):
     """Representation of a single LiteJet light."""
 
-    def __init__(self, hass, lj, i, name):
+    def __init__(self, entry_id, lj, i, name):
         """Initialize a LiteJet light."""
-        self._hass = hass
+        self._entry_id = entry_id
         self._lj = lj
         self._index = i
         self._brightness = 0
         self._name = name
 
-        lj.on_load_activated(i, self._on_load_changed)
-        lj.on_load_deactivated(i, self._on_load_changed)
+    async def async_added_to_hass(self):
+        """Run when this Entity has been added to HA."""
+        self._lj.on_load_activated(self._index, self._on_load_changed)
+        self._lj.on_load_deactivated(self._index, self._on_load_changed)
+
+    async def async_will_remove_from_hass(self):
+        """Entity being removed from hass."""
+        self._lj.unsubscribe(self._on_load_changed)
 
     def _on_load_changed(self):
         """Handle state changes."""
@@ -54,6 +64,11 @@ class LiteJetLight(LightEntity):
         """Return the light's name."""
         return self._name
 
+    @property
+    def unique_id(self):
+        """Return a unique identifier for this light."""
+        return f"{self._entry_id}_{self._index}"
+
     @property
     def brightness(self):
         """Return the light's brightness."""
diff --git a/homeassistant/components/litejet/manifest.json b/homeassistant/components/litejet/manifest.json
index 1e469370b43..e23e5ac2964 100644
--- a/homeassistant/components/litejet/manifest.json
+++ b/homeassistant/components/litejet/manifest.json
@@ -2,6 +2,7 @@
   "domain": "litejet",
   "name": "LiteJet",
   "documentation": "https://www.home-assistant.io/integrations/litejet",
-  "requirements": ["pylitejet==0.1"],
-  "codeowners": []
+  "requirements": ["pylitejet==0.3.0"],
+  "codeowners": ["@joncar"],
+  "config_flow": true
 }
diff --git a/homeassistant/components/litejet/scene.py b/homeassistant/components/litejet/scene.py
index 3311b8d86a0..daadfce90dc 100644
--- a/homeassistant/components/litejet/scene.py
+++ b/homeassistant/components/litejet/scene.py
@@ -1,29 +1,37 @@
 """Support for LiteJet scenes."""
+import logging
 from typing import Any
 
-from homeassistant.components import litejet
 from homeassistant.components.scene import Scene
 
+from .const import DOMAIN
+
+_LOGGER = logging.getLogger(__name__)
+
 ATTR_NUMBER = "number"
 
 
-def setup_platform(hass, config, add_entities, discovery_info=None):
-    """Set up scenes for the LiteJet platform."""
-    litejet_ = hass.data["litejet_system"]
+async def async_setup_entry(hass, config_entry, async_add_entities):
+    """Set up entry."""
 
-    devices = []
-    for i in litejet_.scenes():
-        name = litejet_.get_scene_name(i)
-        if not litejet.is_ignored(hass, name):
-            devices.append(LiteJetScene(litejet_, i, name))
-    add_entities(devices)
+    system = hass.data[DOMAIN]
+
+    def get_entities(system):
+        entities = []
+        for i in system.scenes():
+            name = system.get_scene_name(i)
+            entities.append(LiteJetScene(config_entry.entry_id, system, i, name))
+        return entities
+
+    async_add_entities(await hass.async_add_executor_job(get_entities, system), True)
 
 
 class LiteJetScene(Scene):
     """Representation of a single LiteJet scene."""
 
-    def __init__(self, lj, i, name):
+    def __init__(self, entry_id, lj, i, name):
         """Initialize the scene."""
+        self._entry_id = entry_id
         self._lj = lj
         self._index = i
         self._name = name
@@ -33,6 +41,11 @@ class LiteJetScene(Scene):
         """Return the name of the scene."""
         return self._name
 
+    @property
+    def unique_id(self):
+        """Return a unique identifier for this scene."""
+        return f"{self._entry_id}_{self._index}"
+
     @property
     def device_state_attributes(self):
         """Return the device-specific state attributes."""
@@ -41,3 +54,8 @@ class LiteJetScene(Scene):
     def activate(self, **kwargs: Any) -> None:
         """Activate the scene."""
         self._lj.activate_scene(self._index)
+
+    @property
+    def entity_registry_enabled_default(self) -> bool:
+        """Scenes are only enabled by explicit user choice."""
+        return False
diff --git a/homeassistant/components/litejet/strings.json b/homeassistant/components/litejet/strings.json
new file mode 100644
index 00000000000..79c4ed5f329
--- /dev/null
+++ b/homeassistant/components/litejet/strings.json
@@ -0,0 +1,19 @@
+{
+  "config": {
+    "step": {
+      "user": {
+        "title": "Connect To LiteJet",
+        "description": "Connect the LiteJet's RS232-2 port to your computer and enter the path to the serial port device.\n\nThe LiteJet MCP must be configured for 19.2 K baud, 8 data bits, 1 stop bit, no parity, and to transmit a 'CR' after each response.",
+        "data": {
+          "port": "[%key:common::config_flow::data::port%]"
+        }
+      }
+    },
+    "abort": {
+      "single_instance_allowed": "[%key:common::config_flow::abort::single_instance_allowed%]"
+    },
+    "error": {
+      "open_failed": "Cannot open the specified serial port."
+    }
+  }
+}
\ No newline at end of file
diff --git a/homeassistant/components/litejet/switch.py b/homeassistant/components/litejet/switch.py
index a734dc46d3e..b782a4a9d98 100644
--- a/homeassistant/components/litejet/switch.py
+++ b/homeassistant/components/litejet/switch.py
@@ -1,39 +1,50 @@
 """Support for LiteJet switch."""
 import logging
 
-from homeassistant.components import litejet
 from homeassistant.components.switch import SwitchEntity
 
+from .const import DOMAIN
+
 ATTR_NUMBER = "number"
 
 _LOGGER = logging.getLogger(__name__)
 
 
-def setup_platform(hass, config, add_entities, discovery_info=None):
-    """Set up the LiteJet switch platform."""
-    litejet_ = hass.data["litejet_system"]
+async def async_setup_entry(hass, config_entry, async_add_entities):
+    """Set up entry."""
 
-    devices = []
-    for i in litejet_.button_switches():
-        name = litejet_.get_switch_name(i)
-        if not litejet.is_ignored(hass, name):
-            devices.append(LiteJetSwitch(hass, litejet_, i, name))
-    add_entities(devices, True)
+    system = hass.data[DOMAIN]
+
+    def get_entities(system):
+        entities = []
+        for i in system.button_switches():
+            name = system.get_switch_name(i)
+            entities.append(LiteJetSwitch(config_entry.entry_id, system, i, name))
+        return entities
+
+    async_add_entities(await hass.async_add_executor_job(get_entities, system), True)
 
 
 class LiteJetSwitch(SwitchEntity):
     """Representation of a single LiteJet switch."""
 
-    def __init__(self, hass, lj, i, name):
+    def __init__(self, entry_id, lj, i, name):
         """Initialize a LiteJet switch."""
-        self._hass = hass
+        self._entry_id = entry_id
         self._lj = lj
         self._index = i
         self._state = False
         self._name = name
 
-        lj.on_switch_pressed(i, self._on_switch_pressed)
-        lj.on_switch_released(i, self._on_switch_released)
+    async def async_added_to_hass(self):
+        """Run when this Entity has been added to HA."""
+        self._lj.on_switch_pressed(self._index, self._on_switch_pressed)
+        self._lj.on_switch_released(self._index, self._on_switch_released)
+
+    async def async_will_remove_from_hass(self):
+        """Entity being removed from hass."""
+        self._lj.unsubscribe(self._on_switch_pressed)
+        self._lj.unsubscribe(self._on_switch_released)
 
     def _on_switch_pressed(self):
         _LOGGER.debug("Updating pressed for %s", self._name)
@@ -50,6 +61,11 @@ class LiteJetSwitch(SwitchEntity):
         """Return the name of the switch."""
         return self._name
 
+    @property
+    def unique_id(self):
+        """Return a unique identifier for this switch."""
+        return f"{self._entry_id}_{self._index}"
+
     @property
     def is_on(self):
         """Return if the switch is pressed."""
@@ -72,3 +88,8 @@ class LiteJetSwitch(SwitchEntity):
     def turn_off(self, **kwargs):
         """Release the switch."""
         self._lj.release_switch(self._index)
+
+    @property
+    def entity_registry_enabled_default(self) -> bool:
+        """Switches are only enabled by explicit user choice."""
+        return False
diff --git a/homeassistant/components/litejet/translations/en.json b/homeassistant/components/litejet/translations/en.json
new file mode 100644
index 00000000000..e09b20dc9f2
--- /dev/null
+++ b/homeassistant/components/litejet/translations/en.json
@@ -0,0 +1,19 @@
+{
+    "config": {
+        "abort": {
+            "single_instance_allowed": "Already configured. Only a single configuration possible."
+        },
+        "error": {
+            "open_failed": "Cannot open the specified serial port."
+        },
+        "step": {
+            "user": {
+                "data": {
+                    "port": "Port"
+                },
+                "description": "Connect the LiteJet's RS232-2 port to your computer and enter the path to the serial port device.\n\nThe LiteJet MCP must be configured for 19.2 K baud, 8 data bits, 1 stop bit, no parity, and to transmit a 'CR' after each response.",
+                "title": "Connect To LiteJet"
+            }
+        }
+    }
+}
\ No newline at end of file
diff --git a/homeassistant/components/litejet/trigger.py b/homeassistant/components/litejet/trigger.py
index 0b0117465df..71841d9c4fd 100644
--- a/homeassistant/components/litejet/trigger.py
+++ b/homeassistant/components/litejet/trigger.py
@@ -1,4 +1,6 @@
 """Trigger an automation when a LiteJet switch is released."""
+from typing import Callable
+
 import voluptuous as vol
 
 from homeassistant.const import CONF_PLATFORM
@@ -7,7 +9,7 @@ import homeassistant.helpers.config_validation as cv
 from homeassistant.helpers.event import track_point_in_utc_time
 import homeassistant.util.dt as dt_util
 
-# mypy: allow-untyped-defs, no-check-untyped-defs
+from .const import DOMAIN
 
 CONF_NUMBER = "number"
 CONF_HELD_MORE_THAN = "held_more_than"
@@ -33,7 +35,7 @@ async def async_attach_trigger(hass, config, action, automation_info):
     held_more_than = config.get(CONF_HELD_MORE_THAN)
     held_less_than = config.get(CONF_HELD_LESS_THAN)
     pressed_time = None
-    cancel_pressed_more_than = None
+    cancel_pressed_more_than: Callable = None
     job = HassJob(action)
 
     @callback
@@ -91,12 +93,15 @@ async def async_attach_trigger(hass, config, action, automation_info):
         ):
             hass.add_job(call_action)
 
-    hass.data["litejet_system"].on_switch_pressed(number, pressed)
-    hass.data["litejet_system"].on_switch_released(number, released)
+    system = hass.data[DOMAIN]
+
+    system.on_switch_pressed(number, pressed)
+    system.on_switch_released(number, released)
 
     @callback
     def async_remove():
         """Remove all subscriptions used for this trigger."""
-        return
+        system.unsubscribe(pressed)
+        system.unsubscribe(released)
 
     return async_remove
diff --git a/homeassistant/generated/config_flows.py b/homeassistant/generated/config_flows.py
index 36c22262ef4..e8e06ed7a15 100644
--- a/homeassistant/generated/config_flows.py
+++ b/homeassistant/generated/config_flows.py
@@ -121,6 +121,7 @@ FLOWS = [
     "kulersky",
     "life360",
     "lifx",
+    "litejet",
     "litterrobot",
     "local_ip",
     "locative",
diff --git a/requirements_all.txt b/requirements_all.txt
index 00bd7af0d74..5f971b4ece7 100644
--- a/requirements_all.txt
+++ b/requirements_all.txt
@@ -1501,7 +1501,7 @@ pylgnetcast-homeassistant==0.2.0.dev0
 pylibrespot-java==0.1.0
 
 # homeassistant.components.litejet
-pylitejet==0.1
+pylitejet==0.3.0
 
 # homeassistant.components.litterrobot
 pylitterbot==2021.2.5
diff --git a/requirements_test_all.txt b/requirements_test_all.txt
index 3a0954f41ad..c78f2fbb96a 100644
--- a/requirements_test_all.txt
+++ b/requirements_test_all.txt
@@ -791,7 +791,7 @@ pylast==4.1.0
 pylibrespot-java==0.1.0
 
 # homeassistant.components.litejet
-pylitejet==0.1
+pylitejet==0.3.0
 
 # homeassistant.components.litterrobot
 pylitterbot==2021.2.5
diff --git a/tests/components/litejet/__init__.py b/tests/components/litejet/__init__.py
index 9a01fbe5114..13e2b547cd8 100644
--- a/tests/components/litejet/__init__.py
+++ b/tests/components/litejet/__init__.py
@@ -1 +1,51 @@
 """Tests for the litejet component."""
+from homeassistant.components import scene, switch
+from homeassistant.components.litejet import DOMAIN
+from homeassistant.const import CONF_PORT
+
+from tests.common import MockConfigEntry
+
+
+async def async_init_integration(
+    hass, use_switch=False, use_scene=False
+) -> MockConfigEntry:
+    """Set up the LiteJet integration in Home Assistant."""
+
+    registry = await hass.helpers.entity_registry.async_get_registry()
+
+    entry_data = {CONF_PORT: "/dev/mock"}
+
+    entry = MockConfigEntry(
+        domain=DOMAIN, unique_id=entry_data[CONF_PORT], data=entry_data
+    )
+
+    if use_switch:
+        registry.async_get_or_create(
+            switch.DOMAIN,
+            DOMAIN,
+            f"{entry.entry_id}_1",
+            suggested_object_id="mock_switch_1",
+            disabled_by=None,
+        )
+        registry.async_get_or_create(
+            switch.DOMAIN,
+            DOMAIN,
+            f"{entry.entry_id}_2",
+            suggested_object_id="mock_switch_2",
+            disabled_by=None,
+        )
+
+    if use_scene:
+        registry.async_get_or_create(
+            scene.DOMAIN,
+            DOMAIN,
+            f"{entry.entry_id}_1",
+            suggested_object_id="mock_scene_1",
+            disabled_by=None,
+        )
+
+    entry.add_to_hass(hass)
+    await hass.config_entries.async_setup(entry.entry_id)
+    await hass.async_block_till_done()
+
+    return entry
diff --git a/tests/components/litejet/conftest.py b/tests/components/litejet/conftest.py
index 68797f96ccf..00b1eb92190 100644
--- a/tests/components/litejet/conftest.py
+++ b/tests/components/litejet/conftest.py
@@ -1,2 +1,62 @@
-"""litejet conftest."""
-from tests.components.light.conftest import mock_light_profiles  # noqa
+"""Fixtures for LiteJet testing."""
+from datetime import timedelta
+from unittest.mock import patch
+
+import pytest
+
+import homeassistant.util.dt as dt_util
+
+
+@pytest.fixture
+def mock_litejet():
+    """Mock LiteJet system."""
+    with patch("pylitejet.LiteJet") as mock_pylitejet:
+
+        def get_load_name(number):
+            return f"Mock Load #{number}"
+
+        def get_scene_name(number):
+            return f"Mock Scene #{number}"
+
+        def get_switch_name(number):
+            return f"Mock Switch #{number}"
+
+        mock_lj = mock_pylitejet.return_value
+
+        mock_lj.switch_pressed_callbacks = {}
+        mock_lj.switch_released_callbacks = {}
+        mock_lj.load_activated_callbacks = {}
+        mock_lj.load_deactivated_callbacks = {}
+
+        def on_switch_pressed(number, callback):
+            mock_lj.switch_pressed_callbacks[number] = callback
+
+        def on_switch_released(number, callback):
+            mock_lj.switch_released_callbacks[number] = callback
+
+        def on_load_activated(number, callback):
+            mock_lj.load_activated_callbacks[number] = callback
+
+        def on_load_deactivated(number, callback):
+            mock_lj.load_deactivated_callbacks[number] = callback
+
+        mock_lj.on_switch_pressed.side_effect = on_switch_pressed
+        mock_lj.on_switch_released.side_effect = on_switch_released
+        mock_lj.on_load_activated.side_effect = on_load_activated
+        mock_lj.on_load_deactivated.side_effect = on_load_deactivated
+
+        mock_lj.loads.return_value = range(1, 3)
+        mock_lj.get_load_name.side_effect = get_load_name
+        mock_lj.get_load_level.return_value = 0
+
+        mock_lj.button_switches.return_value = range(1, 3)
+        mock_lj.all_switches.return_value = range(1, 6)
+        mock_lj.get_switch_name.side_effect = get_switch_name
+
+        mock_lj.scenes.return_value = range(1, 3)
+        mock_lj.get_scene_name.side_effect = get_scene_name
+
+        mock_lj.start_time = dt_util.utcnow()
+        mock_lj.last_delta = timedelta(0)
+
+        yield mock_lj
diff --git a/tests/components/litejet/test_config_flow.py b/tests/components/litejet/test_config_flow.py
new file mode 100644
index 00000000000..015ba1c6494
--- /dev/null
+++ b/tests/components/litejet/test_config_flow.py
@@ -0,0 +1,77 @@
+"""The tests for the litejet component."""
+from unittest.mock import patch
+
+from serial import SerialException
+
+from homeassistant.components.litejet.const import DOMAIN
+from homeassistant.const import CONF_PORT
+
+from tests.common import MockConfigEntry
+
+
+async def test_show_config_form(hass):
+    """Test show configuration form."""
+    result = await hass.config_entries.flow.async_init(
+        DOMAIN, context={"source": "user"}
+    )
+
+    assert result["type"] == "form"
+    assert result["step_id"] == "user"
+
+
+async def test_create_entry(hass, mock_litejet):
+    """Test create entry from user input."""
+    test_data = {CONF_PORT: "/dev/test"}
+
+    result = await hass.config_entries.flow.async_init(
+        DOMAIN, context={"source": "user"}, data=test_data
+    )
+
+    assert result["type"] == "create_entry"
+    assert result["title"] == "/dev/test"
+    assert result["data"] == test_data
+
+
+async def test_flow_entry_already_exists(hass):
+    """Test user input when a config entry already exists."""
+    first_entry = MockConfigEntry(
+        domain=DOMAIN,
+        data={CONF_PORT: "/dev/first"},
+    )
+    first_entry.add_to_hass(hass)
+
+    test_data = {CONF_PORT: "/dev/test"}
+
+    result = await hass.config_entries.flow.async_init(
+        DOMAIN, context={"source": "user"}, data=test_data
+    )
+
+    assert result["type"] == "abort"
+    assert result["reason"] == "single_instance_allowed"
+
+
+async def test_flow_open_failed(hass):
+    """Test user input when serial port open fails."""
+    test_data = {CONF_PORT: "/dev/test"}
+
+    with patch("pylitejet.LiteJet") as mock_pylitejet:
+        mock_pylitejet.side_effect = SerialException
+
+        result = await hass.config_entries.flow.async_init(
+            DOMAIN, context={"source": "user"}, data=test_data
+        )
+
+    assert result["type"] == "form"
+    assert result["errors"][CONF_PORT] == "open_failed"
+
+
+async def test_import_step(hass):
+    """Test initializing via import step."""
+    test_data = {CONF_PORT: "/dev/imported"}
+    result = await hass.config_entries.flow.async_init(
+        DOMAIN, context={"source": "import"}, data=test_data
+    )
+
+    assert result["type"] == "create_entry"
+    assert result["title"] == test_data[CONF_PORT]
+    assert result["data"] == test_data
diff --git a/tests/components/litejet/test_init.py b/tests/components/litejet/test_init.py
index 4aee0086cbd..63686452621 100644
--- a/tests/components/litejet/test_init.py
+++ b/tests/components/litejet/test_init.py
@@ -1,41 +1,30 @@
 """The tests for the litejet component."""
-import unittest
-
 from homeassistant.components import litejet
+from homeassistant.components.litejet.const import DOMAIN
+from homeassistant.const import CONF_PORT
+from homeassistant.setup import async_setup_component
 
-from tests.common import get_test_home_assistant
+from . import async_init_integration
 
 
-class TestLiteJet(unittest.TestCase):
-    """Test the litejet component."""
+async def test_setup_with_no_config(hass):
+    """Test that nothing happens."""
+    assert await async_setup_component(hass, DOMAIN, {}) is True
+    assert DOMAIN not in hass.data
 
-    def setup_method(self, method):
-        """Set up things to be run when tests are started."""
-        self.hass = get_test_home_assistant()
-        self.hass.start()
-        self.hass.block_till_done()
 
-    def teardown_method(self, method):
-        """Stop everything that was started."""
-        self.hass.stop()
+async def test_setup_with_config_to_import(hass, mock_litejet):
+    """Test that import happens."""
+    assert (
+        await async_setup_component(hass, DOMAIN, {DOMAIN: {CONF_PORT: "/dev/hello"}})
+        is True
+    )
+    assert DOMAIN in hass.data
 
-    def test_is_ignored_unspecified(self):
-        """Ensure it is ignored when unspecified."""
-        self.hass.data["litejet_config"] = {}
-        assert not litejet.is_ignored(self.hass, "Test")
 
-    def test_is_ignored_empty(self):
-        """Ensure it is ignored when empty."""
-        self.hass.data["litejet_config"] = {litejet.CONF_EXCLUDE_NAMES: []}
-        assert not litejet.is_ignored(self.hass, "Test")
+async def test_unload_entry(hass, mock_litejet):
+    """Test being able to unload an entry."""
+    entry = await async_init_integration(hass, use_switch=True, use_scene=True)
 
-    def test_is_ignored_normal(self):
-        """Test if usually ignored."""
-        self.hass.data["litejet_config"] = {
-            litejet.CONF_EXCLUDE_NAMES: ["Test", "Other One"]
-        }
-        assert litejet.is_ignored(self.hass, "Test")
-        assert not litejet.is_ignored(self.hass, "Other one")
-        assert not litejet.is_ignored(self.hass, "Other 0ne")
-        assert litejet.is_ignored(self.hass, "Other One There")
-        assert litejet.is_ignored(self.hass, "Other One")
+    assert await litejet.async_unload_entry(hass, entry)
+    assert DOMAIN not in hass.data
diff --git a/tests/components/litejet/test_light.py b/tests/components/litejet/test_light.py
index e08bd5c27ac..c455d3a960e 100644
--- a/tests/components/litejet/test_light.py
+++ b/tests/components/litejet/test_light.py
@@ -1,14 +1,11 @@
 """The tests for the litejet component."""
 import logging
-import unittest
-from unittest import mock
 
-from homeassistant import setup
-from homeassistant.components import litejet
-import homeassistant.components.light as light
+from homeassistant.components import light
+from homeassistant.components.light import ATTR_BRIGHTNESS
+from homeassistant.const import ATTR_ENTITY_ID, SERVICE_TURN_OFF, SERVICE_TURN_ON
 
-from tests.common import get_test_home_assistant
-from tests.components.light import common
+from . import async_init_integration
 
 _LOGGER = logging.getLogger(__name__)
 
@@ -18,144 +15,113 @@ ENTITY_OTHER_LIGHT = "light.mock_load_2"
 ENTITY_OTHER_LIGHT_NUMBER = 2
 
 
-class TestLiteJetLight(unittest.TestCase):
-    """Test the litejet component."""
+async def test_on_brightness(hass, mock_litejet):
+    """Test turning the light on with brightness."""
+    await async_init_integration(hass)
 
-    @mock.patch("homeassistant.components.litejet.LiteJet")
-    def setup_method(self, method, mock_pylitejet):
-        """Set up things to be run when tests are started."""
-        self.hass = get_test_home_assistant()
-        self.hass.start()
+    assert hass.states.get(ENTITY_LIGHT).state == "off"
+    assert hass.states.get(ENTITY_OTHER_LIGHT).state == "off"
 
-        self.load_activated_callbacks = {}
-        self.load_deactivated_callbacks = {}
+    assert not light.is_on(hass, ENTITY_LIGHT)
 
-        def get_load_name(number):
-            return f"Mock Load #{number}"
+    await hass.services.async_call(
+        light.DOMAIN,
+        SERVICE_TURN_ON,
+        {ATTR_ENTITY_ID: ENTITY_LIGHT, ATTR_BRIGHTNESS: 102},
+        blocking=True,
+    )
+    mock_litejet.activate_load_at.assert_called_with(ENTITY_LIGHT_NUMBER, 39, 0)
 
-        def on_load_activated(number, callback):
-            self.load_activated_callbacks[number] = callback
 
-        def on_load_deactivated(number, callback):
-            self.load_deactivated_callbacks[number] = callback
+async def test_on_off(hass, mock_litejet):
+    """Test turning the light on and off."""
+    await async_init_integration(hass)
 
-        self.mock_lj = mock_pylitejet.return_value
-        self.mock_lj.loads.return_value = range(1, 3)
-        self.mock_lj.button_switches.return_value = range(0)
-        self.mock_lj.all_switches.return_value = range(0)
-        self.mock_lj.scenes.return_value = range(0)
-        self.mock_lj.get_load_level.return_value = 0
-        self.mock_lj.get_load_name.side_effect = get_load_name
-        self.mock_lj.on_load_activated.side_effect = on_load_activated
-        self.mock_lj.on_load_deactivated.side_effect = on_load_deactivated
+    assert hass.states.get(ENTITY_LIGHT).state == "off"
+    assert hass.states.get(ENTITY_OTHER_LIGHT).state == "off"
 
-        assert setup.setup_component(
-            self.hass,
-            litejet.DOMAIN,
-            {"litejet": {"port": "/dev/serial/by-id/mock-litejet"}},
-        )
-        self.hass.block_till_done()
+    assert not light.is_on(hass, ENTITY_LIGHT)
 
-        self.mock_lj.get_load_level.reset_mock()
+    await hass.services.async_call(
+        light.DOMAIN,
+        SERVICE_TURN_ON,
+        {ATTR_ENTITY_ID: ENTITY_LIGHT},
+        blocking=True,
+    )
+    mock_litejet.activate_load.assert_called_with(ENTITY_LIGHT_NUMBER)
 
-    def light(self):
-        """Test for main light entity."""
-        return self.hass.states.get(ENTITY_LIGHT)
+    await hass.services.async_call(
+        light.DOMAIN,
+        SERVICE_TURN_OFF,
+        {ATTR_ENTITY_ID: ENTITY_LIGHT},
+        blocking=True,
+    )
+    mock_litejet.deactivate_load.assert_called_with(ENTITY_LIGHT_NUMBER)
 
-    def other_light(self):
-        """Test the other light."""
-        return self.hass.states.get(ENTITY_OTHER_LIGHT)
 
-    def teardown_method(self, method):
-        """Stop everything that was started."""
-        self.hass.stop()
+async def test_activated_event(hass, mock_litejet):
+    """Test handling an event from LiteJet."""
 
-    def test_on_brightness(self):
-        """Test turning the light on with brightness."""
-        assert self.light().state == "off"
-        assert self.other_light().state == "off"
+    await async_init_integration(hass)
 
-        assert not light.is_on(self.hass, ENTITY_LIGHT)
+    # Light 1
+    mock_litejet.get_load_level.return_value = 99
+    mock_litejet.get_load_level.reset_mock()
+    mock_litejet.load_activated_callbacks[ENTITY_LIGHT_NUMBER]()
+    await hass.async_block_till_done()
 
-        common.turn_on(self.hass, ENTITY_LIGHT, brightness=102)
-        self.hass.block_till_done()
-        self.mock_lj.activate_load_at.assert_called_with(ENTITY_LIGHT_NUMBER, 39, 0)
+    mock_litejet.get_load_level.assert_called_once_with(ENTITY_LIGHT_NUMBER)
 
-    def test_on_off(self):
-        """Test turning the light on and off."""
-        assert self.light().state == "off"
-        assert self.other_light().state == "off"
+    assert light.is_on(hass, ENTITY_LIGHT)
+    assert not light.is_on(hass, ENTITY_OTHER_LIGHT)
+    assert hass.states.get(ENTITY_LIGHT).state == "on"
+    assert hass.states.get(ENTITY_OTHER_LIGHT).state == "off"
+    assert hass.states.get(ENTITY_LIGHT).attributes.get(ATTR_BRIGHTNESS) == 255
 
-        assert not light.is_on(self.hass, ENTITY_LIGHT)
+    # Light 2
 
-        common.turn_on(self.hass, ENTITY_LIGHT)
-        self.hass.block_till_done()
-        self.mock_lj.activate_load.assert_called_with(ENTITY_LIGHT_NUMBER)
+    mock_litejet.get_load_level.return_value = 40
+    mock_litejet.get_load_level.reset_mock()
+    mock_litejet.load_activated_callbacks[ENTITY_OTHER_LIGHT_NUMBER]()
+    await hass.async_block_till_done()
 
-        common.turn_off(self.hass, ENTITY_LIGHT)
-        self.hass.block_till_done()
-        self.mock_lj.deactivate_load.assert_called_with(ENTITY_LIGHT_NUMBER)
+    mock_litejet.get_load_level.assert_called_once_with(ENTITY_OTHER_LIGHT_NUMBER)
 
-    def test_activated_event(self):
-        """Test handling an event from LiteJet."""
-        self.mock_lj.get_load_level.return_value = 99
+    assert light.is_on(hass, ENTITY_LIGHT)
+    assert light.is_on(hass, ENTITY_OTHER_LIGHT)
+    assert hass.states.get(ENTITY_LIGHT).state == "on"
+    assert hass.states.get(ENTITY_OTHER_LIGHT).state == "on"
+    assert (
+        int(hass.states.get(ENTITY_OTHER_LIGHT).attributes.get(ATTR_BRIGHTNESS)) == 103
+    )
 
-        # Light 1
 
-        _LOGGER.info(self.load_activated_callbacks[ENTITY_LIGHT_NUMBER])
-        self.load_activated_callbacks[ENTITY_LIGHT_NUMBER]()
-        self.hass.block_till_done()
+async def test_deactivated_event(hass, mock_litejet):
+    """Test handling an event from LiteJet."""
+    await async_init_integration(hass)
 
-        self.mock_lj.get_load_level.assert_called_once_with(ENTITY_LIGHT_NUMBER)
+    # Initial state is on.
+    mock_litejet.get_load_level.return_value = 99
 
-        assert light.is_on(self.hass, ENTITY_LIGHT)
-        assert not light.is_on(self.hass, ENTITY_OTHER_LIGHT)
-        assert self.light().state == "on"
-        assert self.other_light().state == "off"
-        assert self.light().attributes.get(light.ATTR_BRIGHTNESS) == 255
+    mock_litejet.load_activated_callbacks[ENTITY_OTHER_LIGHT_NUMBER]()
+    await hass.async_block_till_done()
 
-        # Light 2
+    assert light.is_on(hass, ENTITY_OTHER_LIGHT)
 
-        self.mock_lj.get_load_level.return_value = 40
+    # Event indicates it is off now.
 
-        self.mock_lj.get_load_level.reset_mock()
+    mock_litejet.get_load_level.reset_mock()
+    mock_litejet.get_load_level.return_value = 0
 
-        self.load_activated_callbacks[ENTITY_OTHER_LIGHT_NUMBER]()
-        self.hass.block_till_done()
+    mock_litejet.load_deactivated_callbacks[ENTITY_OTHER_LIGHT_NUMBER]()
+    await hass.async_block_till_done()
 
-        self.mock_lj.get_load_level.assert_called_once_with(ENTITY_OTHER_LIGHT_NUMBER)
+    # (Requesting the level is not strictly needed with a deactivated
+    # event but the implementation happens to do it. This could be
+    # changed to an assert_not_called in the future.)
+    mock_litejet.get_load_level.assert_called_with(ENTITY_OTHER_LIGHT_NUMBER)
 
-        assert light.is_on(self.hass, ENTITY_OTHER_LIGHT)
-        assert light.is_on(self.hass, ENTITY_LIGHT)
-        assert self.light().state == "on"
-        assert self.other_light().state == "on"
-        assert int(self.other_light().attributes[light.ATTR_BRIGHTNESS]) == 103
-
-    def test_deactivated_event(self):
-        """Test handling an event from LiteJet."""
-        # Initial state is on.
-
-        self.mock_lj.get_load_level.return_value = 99
-
-        self.load_activated_callbacks[ENTITY_OTHER_LIGHT_NUMBER]()
-        self.hass.block_till_done()
-
-        assert light.is_on(self.hass, ENTITY_OTHER_LIGHT)
-
-        # Event indicates it is off now.
-
-        self.mock_lj.get_load_level.reset_mock()
-        self.mock_lj.get_load_level.return_value = 0
-
-        self.load_deactivated_callbacks[ENTITY_OTHER_LIGHT_NUMBER]()
-        self.hass.block_till_done()
-
-        # (Requesting the level is not strictly needed with a deactivated
-        # event but the implementation happens to do it. This could be
-        # changed to an assert_not_called in the future.)
-        self.mock_lj.get_load_level.assert_called_with(ENTITY_OTHER_LIGHT_NUMBER)
-
-        assert not light.is_on(self.hass, ENTITY_OTHER_LIGHT)
-        assert not light.is_on(self.hass, ENTITY_LIGHT)
-        assert self.light().state == "off"
-        assert self.other_light().state == "off"
+    assert not light.is_on(hass, ENTITY_OTHER_LIGHT)
+    assert not light.is_on(hass, ENTITY_LIGHT)
+    assert hass.states.get(ENTITY_LIGHT).state == "off"
+    assert hass.states.get(ENTITY_OTHER_LIGHT).state == "off"
diff --git a/tests/components/litejet/test_scene.py b/tests/components/litejet/test_scene.py
index fe9298cf187..5df26f8c680 100644
--- a/tests/components/litejet/test_scene.py
+++ b/tests/components/litejet/test_scene.py
@@ -1,12 +1,8 @@
 """The tests for the litejet component."""
-import unittest
-from unittest import mock
+from homeassistant.components import scene
+from homeassistant.const import ATTR_ENTITY_ID, SERVICE_TURN_ON
 
-from homeassistant import setup
-from homeassistant.components import litejet
-
-from tests.common import get_test_home_assistant
-from tests.components.scene import common
+from . import async_init_integration
 
 ENTITY_SCENE = "scene.mock_scene_1"
 ENTITY_SCENE_NUMBER = 1
@@ -14,46 +10,31 @@ ENTITY_OTHER_SCENE = "scene.mock_scene_2"
 ENTITY_OTHER_SCENE_NUMBER = 2
 
 
-class TestLiteJetScene(unittest.TestCase):
-    """Test the litejet component."""
+async def test_disabled_by_default(hass, mock_litejet):
+    """Test the scene is disabled by default."""
+    await async_init_integration(hass)
 
-    @mock.patch("homeassistant.components.litejet.LiteJet")
-    def setup_method(self, method, mock_pylitejet):
-        """Set up things to be run when tests are started."""
-        self.hass = get_test_home_assistant()
-        self.hass.start()
+    registry = await hass.helpers.entity_registry.async_get_registry()
 
-        def get_scene_name(number):
-            return f"Mock Scene #{number}"
+    state = hass.states.get(ENTITY_SCENE)
+    assert state is None
 
-        self.mock_lj = mock_pylitejet.return_value
-        self.mock_lj.loads.return_value = range(0)
-        self.mock_lj.button_switches.return_value = range(0)
-        self.mock_lj.all_switches.return_value = range(0)
-        self.mock_lj.scenes.return_value = range(1, 3)
-        self.mock_lj.get_scene_name.side_effect = get_scene_name
+    entry = registry.async_get(ENTITY_SCENE)
+    assert entry
+    assert entry.disabled
+    assert entry.disabled_by == "integration"
 
-        assert setup.setup_component(
-            self.hass,
-            litejet.DOMAIN,
-            {"litejet": {"port": "/dev/serial/by-id/mock-litejet"}},
-        )
-        self.hass.block_till_done()
 
-    def teardown_method(self, method):
-        """Stop everything that was started."""
-        self.hass.stop()
+async def test_activate(hass, mock_litejet):
+    """Test activating the scene."""
 
-    def scene(self):
-        """Get the current scene."""
-        return self.hass.states.get(ENTITY_SCENE)
+    await async_init_integration(hass, use_scene=True)
 
-    def other_scene(self):
-        """Get the other scene."""
-        return self.hass.states.get(ENTITY_OTHER_SCENE)
+    state = hass.states.get(ENTITY_SCENE)
+    assert state is not None
 
-    def test_activate(self):
-        """Test activating the scene."""
-        common.activate(self.hass, ENTITY_SCENE)
-        self.hass.block_till_done()
-        self.mock_lj.activate_scene.assert_called_once_with(ENTITY_SCENE_NUMBER)
+    await hass.services.async_call(
+        scene.DOMAIN, SERVICE_TURN_ON, {ATTR_ENTITY_ID: ENTITY_SCENE}, blocking=True
+    )
+
+    mock_litejet.activate_scene.assert_called_once_with(ENTITY_SCENE_NUMBER)
diff --git a/tests/components/litejet/test_switch.py b/tests/components/litejet/test_switch.py
index 2f897045c92..dfcb9801093 100644
--- a/tests/components/litejet/test_switch.py
+++ b/tests/components/litejet/test_switch.py
@@ -1,14 +1,10 @@
 """The tests for the litejet component."""
 import logging
-import unittest
-from unittest import mock
 
-from homeassistant import setup
-from homeassistant.components import litejet
-import homeassistant.components.switch as switch
+from homeassistant.components import switch
+from homeassistant.const import ATTR_ENTITY_ID, SERVICE_TURN_OFF, SERVICE_TURN_ON
 
-from tests.common import get_test_home_assistant
-from tests.components.switch import common
+from . import async_init_integration
 
 _LOGGER = logging.getLogger(__name__)
 
@@ -18,117 +14,67 @@ ENTITY_OTHER_SWITCH = "switch.mock_switch_2"
 ENTITY_OTHER_SWITCH_NUMBER = 2
 
 
-class TestLiteJetSwitch(unittest.TestCase):
-    """Test the litejet component."""
+async def test_on_off(hass, mock_litejet):
+    """Test turning the switch on and off."""
 
-    @mock.patch("homeassistant.components.litejet.LiteJet")
-    def setup_method(self, method, mock_pylitejet):
-        """Set up things to be run when tests are started."""
-        self.hass = get_test_home_assistant()
-        self.hass.start()
+    await async_init_integration(hass, use_switch=True)
 
-        self.switch_pressed_callbacks = {}
-        self.switch_released_callbacks = {}
+    assert hass.states.get(ENTITY_SWITCH).state == "off"
+    assert hass.states.get(ENTITY_OTHER_SWITCH).state == "off"
 
-        def get_switch_name(number):
-            return f"Mock Switch #{number}"
+    assert not switch.is_on(hass, ENTITY_SWITCH)
 
-        def on_switch_pressed(number, callback):
-            self.switch_pressed_callbacks[number] = callback
+    await hass.services.async_call(
+        switch.DOMAIN, SERVICE_TURN_ON, {ATTR_ENTITY_ID: ENTITY_SWITCH}, blocking=True
+    )
+    mock_litejet.press_switch.assert_called_with(ENTITY_SWITCH_NUMBER)
 
-        def on_switch_released(number, callback):
-            self.switch_released_callbacks[number] = callback
+    await hass.services.async_call(
+        switch.DOMAIN, SERVICE_TURN_OFF, {ATTR_ENTITY_ID: ENTITY_SWITCH}, blocking=True
+    )
+    mock_litejet.release_switch.assert_called_with(ENTITY_SWITCH_NUMBER)
 
-        self.mock_lj = mock_pylitejet.return_value
-        self.mock_lj.loads.return_value = range(0)
-        self.mock_lj.button_switches.return_value = range(1, 3)
-        self.mock_lj.all_switches.return_value = range(1, 6)
-        self.mock_lj.scenes.return_value = range(0)
-        self.mock_lj.get_switch_name.side_effect = get_switch_name
-        self.mock_lj.on_switch_pressed.side_effect = on_switch_pressed
-        self.mock_lj.on_switch_released.side_effect = on_switch_released
 
-        config = {"litejet": {"port": "/dev/serial/by-id/mock-litejet"}}
-        if method == self.test_include_switches_False:
-            config["litejet"]["include_switches"] = False
-        elif method != self.test_include_switches_unspecified:
-            config["litejet"]["include_switches"] = True
+async def test_pressed_event(hass, mock_litejet):
+    """Test handling an event from LiteJet."""
 
-        assert setup.setup_component(self.hass, litejet.DOMAIN, config)
-        self.hass.block_till_done()
+    await async_init_integration(hass, use_switch=True)
 
-    def teardown_method(self, method):
-        """Stop everything that was started."""
-        self.hass.stop()
+    # Switch 1
+    mock_litejet.switch_pressed_callbacks[ENTITY_SWITCH_NUMBER]()
+    await hass.async_block_till_done()
 
-    def switch(self):
-        """Return the switch state."""
-        return self.hass.states.get(ENTITY_SWITCH)
+    assert switch.is_on(hass, ENTITY_SWITCH)
+    assert not switch.is_on(hass, ENTITY_OTHER_SWITCH)
+    assert hass.states.get(ENTITY_SWITCH).state == "on"
+    assert hass.states.get(ENTITY_OTHER_SWITCH).state == "off"
 
-    def other_switch(self):
-        """Return the other switch state."""
-        return self.hass.states.get(ENTITY_OTHER_SWITCH)
+    # Switch 2
+    mock_litejet.switch_pressed_callbacks[ENTITY_OTHER_SWITCH_NUMBER]()
+    await hass.async_block_till_done()
 
-    def test_include_switches_unspecified(self):
-        """Test that switches are ignored by default."""
-        self.mock_lj.button_switches.assert_not_called()
-        self.mock_lj.all_switches.assert_not_called()
+    assert switch.is_on(hass, ENTITY_OTHER_SWITCH)
+    assert switch.is_on(hass, ENTITY_SWITCH)
+    assert hass.states.get(ENTITY_SWITCH).state == "on"
+    assert hass.states.get(ENTITY_OTHER_SWITCH).state == "on"
 
-    def test_include_switches_False(self):
-        """Test that switches can be explicitly ignored."""
-        self.mock_lj.button_switches.assert_not_called()
-        self.mock_lj.all_switches.assert_not_called()
 
-    def test_on_off(self):
-        """Test turning the switch on and off."""
-        assert self.switch().state == "off"
-        assert self.other_switch().state == "off"
+async def test_released_event(hass, mock_litejet):
+    """Test handling an event from LiteJet."""
 
-        assert not switch.is_on(self.hass, ENTITY_SWITCH)
+    await async_init_integration(hass, use_switch=True)
 
-        common.turn_on(self.hass, ENTITY_SWITCH)
-        self.hass.block_till_done()
-        self.mock_lj.press_switch.assert_called_with(ENTITY_SWITCH_NUMBER)
+    # Initial state is on.
+    mock_litejet.switch_pressed_callbacks[ENTITY_OTHER_SWITCH_NUMBER]()
+    await hass.async_block_till_done()
 
-        common.turn_off(self.hass, ENTITY_SWITCH)
-        self.hass.block_till_done()
-        self.mock_lj.release_switch.assert_called_with(ENTITY_SWITCH_NUMBER)
+    assert switch.is_on(hass, ENTITY_OTHER_SWITCH)
 
-    def test_pressed_event(self):
-        """Test handling an event from LiteJet."""
-        # Switch 1
-        _LOGGER.info(self.switch_pressed_callbacks[ENTITY_SWITCH_NUMBER])
-        self.switch_pressed_callbacks[ENTITY_SWITCH_NUMBER]()
-        self.hass.block_till_done()
+    # Event indicates it is off now.
+    mock_litejet.switch_released_callbacks[ENTITY_OTHER_SWITCH_NUMBER]()
+    await hass.async_block_till_done()
 
-        assert switch.is_on(self.hass, ENTITY_SWITCH)
-        assert not switch.is_on(self.hass, ENTITY_OTHER_SWITCH)
-        assert self.switch().state == "on"
-        assert self.other_switch().state == "off"
-
-        # Switch 2
-        self.switch_pressed_callbacks[ENTITY_OTHER_SWITCH_NUMBER]()
-        self.hass.block_till_done()
-
-        assert switch.is_on(self.hass, ENTITY_OTHER_SWITCH)
-        assert switch.is_on(self.hass, ENTITY_SWITCH)
-        assert self.other_switch().state == "on"
-        assert self.switch().state == "on"
-
-    def test_released_event(self):
-        """Test handling an event from LiteJet."""
-        # Initial state is on.
-        self.switch_pressed_callbacks[ENTITY_OTHER_SWITCH_NUMBER]()
-        self.hass.block_till_done()
-
-        assert switch.is_on(self.hass, ENTITY_OTHER_SWITCH)
-
-        # Event indicates it is off now.
-
-        self.switch_released_callbacks[ENTITY_OTHER_SWITCH_NUMBER]()
-        self.hass.block_till_done()
-
-        assert not switch.is_on(self.hass, ENTITY_OTHER_SWITCH)
-        assert not switch.is_on(self.hass, ENTITY_SWITCH)
-        assert self.other_switch().state == "off"
-        assert self.switch().state == "off"
+    assert not switch.is_on(hass, ENTITY_OTHER_SWITCH)
+    assert not switch.is_on(hass, ENTITY_SWITCH)
+    assert hass.states.get(ENTITY_SWITCH).state == "off"
+    assert hass.states.get(ENTITY_OTHER_SWITCH).state == "off"
diff --git a/tests/components/litejet/test_trigger.py b/tests/components/litejet/test_trigger.py
index 3cbbd474b88..216da9b54ef 100644
--- a/tests/components/litejet/test_trigger.py
+++ b/tests/components/litejet/test_trigger.py
@@ -2,14 +2,16 @@
 from datetime import timedelta
 import logging
 from unittest import mock
+from unittest.mock import patch
 
 import pytest
 
 from homeassistant import setup
-from homeassistant.components import litejet
 import homeassistant.components.automation as automation
 import homeassistant.util.dt as dt_util
 
+from . import async_init_integration
+
 from tests.common import async_fire_time_changed, async_mock_service
 from tests.components.blueprint.conftest import stub_blueprint_populate  # noqa
 
@@ -27,88 +29,51 @@ def calls(hass):
     return async_mock_service(hass, "test", "automation")
 
 
-def get_switch_name(number):
-    """Get a mock switch name."""
-    return f"Mock Switch #{number}"
-
-
-@pytest.fixture
-def mock_lj(hass):
-    """Initialize components."""
-    with mock.patch("homeassistant.components.litejet.LiteJet") as mock_pylitejet:
-        mock_lj = mock_pylitejet.return_value
-
-        mock_lj.switch_pressed_callbacks = {}
-        mock_lj.switch_released_callbacks = {}
-
-        def on_switch_pressed(number, callback):
-            mock_lj.switch_pressed_callbacks[number] = callback
-
-        def on_switch_released(number, callback):
-            mock_lj.switch_released_callbacks[number] = callback
-
-        mock_lj.loads.return_value = range(0)
-        mock_lj.button_switches.return_value = range(1, 3)
-        mock_lj.all_switches.return_value = range(1, 6)
-        mock_lj.scenes.return_value = range(0)
-        mock_lj.get_switch_name.side_effect = get_switch_name
-        mock_lj.on_switch_pressed.side_effect = on_switch_pressed
-        mock_lj.on_switch_released.side_effect = on_switch_released
-
-        config = {"litejet": {"port": "/dev/serial/by-id/mock-litejet"}}
-        assert hass.loop.run_until_complete(
-            setup.async_setup_component(hass, litejet.DOMAIN, config)
-        )
-
-        mock_lj.start_time = dt_util.utcnow()
-        mock_lj.last_delta = timedelta(0)
-        return mock_lj
-
-
-async def simulate_press(hass, mock_lj, number):
+async def simulate_press(hass, mock_litejet, number):
     """Test to simulate a press."""
     _LOGGER.info("*** simulate press of %d", number)
-    callback = mock_lj.switch_pressed_callbacks.get(number)
+    callback = mock_litejet.switch_pressed_callbacks.get(number)
     with mock.patch(
         "homeassistant.helpers.condition.dt_util.utcnow",
-        return_value=mock_lj.start_time + mock_lj.last_delta,
+        return_value=mock_litejet.start_time + mock_litejet.last_delta,
     ):
         if callback is not None:
             await hass.async_add_executor_job(callback)
         await hass.async_block_till_done()
 
 
-async def simulate_release(hass, mock_lj, number):
+async def simulate_release(hass, mock_litejet, number):
     """Test to simulate releasing."""
     _LOGGER.info("*** simulate release of %d", number)
-    callback = mock_lj.switch_released_callbacks.get(number)
+    callback = mock_litejet.switch_released_callbacks.get(number)
     with mock.patch(
         "homeassistant.helpers.condition.dt_util.utcnow",
-        return_value=mock_lj.start_time + mock_lj.last_delta,
+        return_value=mock_litejet.start_time + mock_litejet.last_delta,
     ):
         if callback is not None:
             await hass.async_add_executor_job(callback)
         await hass.async_block_till_done()
 
 
-async def simulate_time(hass, mock_lj, delta):
+async def simulate_time(hass, mock_litejet, delta):
     """Test to simulate time."""
     _LOGGER.info(
-        "*** simulate time change by %s: %s", delta, mock_lj.start_time + delta
+        "*** simulate time change by %s: %s", delta, mock_litejet.start_time + delta
     )
-    mock_lj.last_delta = delta
+    mock_litejet.last_delta = delta
     with mock.patch(
         "homeassistant.helpers.condition.dt_util.utcnow",
-        return_value=mock_lj.start_time + delta,
+        return_value=mock_litejet.start_time + delta,
     ):
         _LOGGER.info("now=%s", dt_util.utcnow())
-        async_fire_time_changed(hass, mock_lj.start_time + delta)
+        async_fire_time_changed(hass, mock_litejet.start_time + delta)
         await hass.async_block_till_done()
         _LOGGER.info("done with now=%s", dt_util.utcnow())
 
 
 async def setup_automation(hass, trigger):
     """Test setting up the automation."""
+    await async_init_integration(hass, use_switch=True)
     assert await setup.async_setup_component(
         hass,
         automation.DOMAIN,
@@ -125,19 +90,19 @@ async def setup_automation(hass, trigger):
     await hass.async_block_till_done()
 
 
-async def test_simple(hass, calls, mock_lj):
+async def test_simple(hass, calls, mock_litejet):
     """Test the simplest form of a LiteJet trigger."""
     await setup_automation(
         hass, {"platform": "litejet", "number": ENTITY_OTHER_SWITCH_NUMBER}
     )
 
-    await simulate_press(hass, mock_lj, ENTITY_OTHER_SWITCH_NUMBER)
-    await simulate_release(hass, mock_lj, ENTITY_OTHER_SWITCH_NUMBER)
+    await simulate_press(hass, mock_litejet, ENTITY_OTHER_SWITCH_NUMBER)
+    await simulate_release(hass, mock_litejet, ENTITY_OTHER_SWITCH_NUMBER)
 
     assert len(calls) == 1
 
 
-async def test_held_more_than_short(hass, calls, mock_lj):
+async def test_held_more_than_short(hass, calls, mock_litejet):
     """Test a too short hold."""
     await setup_automation(
         hass,
@@ -148,13 +113,13 @@ async def test_held_more_than_short(hass, calls, mock_lj):
         },
     )
 
-    await simulate_press(hass, mock_lj, ENTITY_OTHER_SWITCH_NUMBER)
-    await simulate_time(hass, mock_lj, timedelta(seconds=0.1))
-    await simulate_release(hass, mock_lj, ENTITY_OTHER_SWITCH_NUMBER)
+    await simulate_press(hass, mock_litejet, ENTITY_OTHER_SWITCH_NUMBER)
+    await simulate_time(hass, mock_litejet, timedelta(seconds=0.1))
+    await simulate_release(hass, mock_litejet, ENTITY_OTHER_SWITCH_NUMBER)
     assert len(calls) == 0
 
 
-async def test_held_more_than_long(hass, calls, mock_lj):
+async def test_held_more_than_long(hass, calls, mock_litejet):
     """Test a hold that is long enough."""
     await setup_automation(
         hass,
@@ -165,15 +130,15 @@ async def test_held_more_than_long(hass, calls, mock_lj):
         },
     )
 
-    await simulate_press(hass, mock_lj, ENTITY_OTHER_SWITCH_NUMBER)
+    await simulate_press(hass, mock_litejet, ENTITY_OTHER_SWITCH_NUMBER)
     assert len(calls) == 0
-    await simulate_time(hass, mock_lj, timedelta(seconds=0.3))
+    await simulate_time(hass, mock_litejet, timedelta(seconds=0.3))
     assert len(calls) == 1
-    await simulate_release(hass, mock_lj, ENTITY_OTHER_SWITCH_NUMBER)
+    await simulate_release(hass, mock_litejet, ENTITY_OTHER_SWITCH_NUMBER)
     assert len(calls) == 1
 
 
-async def test_held_less_than_short(hass, calls, mock_lj):
+async def test_held_less_than_short(hass, calls, mock_litejet):
     """Test a hold that is short enough."""
     await setup_automation(
         hass,
@@ -184,14 +149,14 @@ async def test_held_less_than_short(hass, calls, mock_lj):
         },
     )
 
-    await simulate_press(hass, mock_lj, ENTITY_OTHER_SWITCH_NUMBER)
-    await simulate_time(hass, mock_lj, timedelta(seconds=0.1))
+    await simulate_press(hass, mock_litejet, ENTITY_OTHER_SWITCH_NUMBER)
+    await simulate_time(hass, mock_litejet, timedelta(seconds=0.1))
     assert len(calls) == 0
-    await simulate_release(hass, mock_lj, ENTITY_OTHER_SWITCH_NUMBER)
+    await simulate_release(hass, mock_litejet, ENTITY_OTHER_SWITCH_NUMBER)
     assert len(calls) == 1
 
 
-async def test_held_less_than_long(hass, calls, mock_lj):
+async def test_held_less_than_long(hass, calls, mock_litejet):
     """Test a hold that is too long."""
     await setup_automation(
         hass,
@@ -202,15 +167,15 @@ async def test_held_less_than_long(hass, calls, mock_lj):
         },
     )
 
-    await simulate_press(hass, mock_lj, ENTITY_OTHER_SWITCH_NUMBER)
+    await simulate_press(hass, mock_litejet, ENTITY_OTHER_SWITCH_NUMBER)
     assert len(calls) == 0
-    await simulate_time(hass, mock_lj, timedelta(seconds=0.3))
+    await simulate_time(hass, mock_litejet, timedelta(seconds=0.3))
     assert len(calls) == 0
-    await simulate_release(hass, mock_lj, ENTITY_OTHER_SWITCH_NUMBER)
+    await simulate_release(hass, mock_litejet, ENTITY_OTHER_SWITCH_NUMBER)
     assert len(calls) == 0
 
 
-async def test_held_in_range_short(hass, calls, mock_lj):
+async def test_held_in_range_short(hass, calls, mock_litejet):
     """Test an in-range trigger with a too short hold."""
     await setup_automation(
         hass,
@@ -222,13 +187,13 @@ async def test_held_in_range_short(hass, calls, mock_lj):
         },
     )
 
-    await simulate_press(hass, mock_lj, ENTITY_OTHER_SWITCH_NUMBER)
-    await simulate_time(hass, mock_lj, timedelta(seconds=0.05))
-    await simulate_release(hass, mock_lj, ENTITY_OTHER_SWITCH_NUMBER)
+    await simulate_press(hass, mock_litejet, ENTITY_OTHER_SWITCH_NUMBER)
+    await simulate_time(hass, mock_litejet, timedelta(seconds=0.05))
+    await simulate_release(hass, mock_litejet, ENTITY_OTHER_SWITCH_NUMBER)
     assert len(calls) == 0
 
 
-async def test_held_in_range_just_right(hass, calls, mock_lj):
+async def test_held_in_range_just_right(hass, calls, mock_litejet):
     """Test an in-range trigger with a just right hold."""
     await setup_automation(
         hass,
@@ -240,15 +205,15 @@ async def test_held_in_range_just_right(hass, calls, mock_lj):
         },
     )
 
-    await simulate_press(hass, mock_lj, ENTITY_OTHER_SWITCH_NUMBER)
+    await simulate_press(hass, mock_litejet, ENTITY_OTHER_SWITCH_NUMBER)
     assert len(calls) == 0
-    await simulate_time(hass, mock_lj, timedelta(seconds=0.2))
+    await simulate_time(hass, mock_litejet, timedelta(seconds=0.2))
     assert len(calls) == 0
-    await simulate_release(hass, mock_lj, ENTITY_OTHER_SWITCH_NUMBER)
+    await simulate_release(hass, mock_litejet, ENTITY_OTHER_SWITCH_NUMBER)
     assert len(calls) == 1
 
 
-async def test_held_in_range_long(hass, calls, mock_lj):
+async def test_held_in_range_long(hass, calls, mock_litejet):
     """Test an in-range trigger with a too long hold."""
     await setup_automation(
         hass,
@@ -260,9 +225,50 @@ async def test_held_in_range_long(hass, calls, mock_lj):
         },
     )
 
-    await simulate_press(hass, mock_lj, ENTITY_OTHER_SWITCH_NUMBER)
+    await simulate_press(hass, mock_litejet, ENTITY_OTHER_SWITCH_NUMBER)
     assert len(calls) == 0
-    await simulate_time(hass, mock_lj, timedelta(seconds=0.4))
+    await simulate_time(hass, mock_litejet, timedelta(seconds=0.4))
     assert len(calls) == 0
-    await simulate_release(hass, mock_lj, ENTITY_OTHER_SWITCH_NUMBER)
+    await simulate_release(hass, mock_litejet, ENTITY_OTHER_SWITCH_NUMBER)
     assert len(calls) == 0
+
+
+async def test_reload(hass, calls, mock_litejet):
+    """Test reloading automation."""
+    await setup_automation(
+        hass,
+        {
+            "platform": "litejet",
+            "number": ENTITY_OTHER_SWITCH_NUMBER,
+            "held_more_than": {"milliseconds": "100"},
+            "held_less_than": {"milliseconds": "300"},
+        },
+    )
+
+    with patch(
+        "homeassistant.config.load_yaml_config_file",
+        autospec=True,
+        return_value={
+            "automation": {
+                "trigger": {
+                    "platform": "litejet",
+                    "number": ENTITY_OTHER_SWITCH_NUMBER,
+                    "held_more_than": {"milliseconds": "1000"},
+                },
+                "action": {"service": "test.automation"},
+            }
+        },
+    ):
+        await hass.services.async_call(
+            "automation",
+            "reload",
+            blocking=True,
+        )
+        await hass.async_block_till_done()
+
+    await simulate_press(hass, mock_litejet, ENTITY_OTHER_SWITCH_NUMBER)
+    assert len(calls) == 0
+    await simulate_time(hass, mock_litejet, timedelta(seconds=0.5))
+    assert len(calls) == 0
+    await simulate_time(hass, mock_litejet, timedelta(seconds=1.25))
+    assert len(calls) == 1