diff --git a/esphome/components/demo/__init__.py b/esphome/components/demo/__init__.py
index 96ffb58b82..33bdc3dee2 100644
--- a/esphome/components/demo/__init__.py
+++ b/esphome/components/demo/__init__.py
@@ -1,14 +1,22 @@
 import esphome.codegen as cg
 from esphome.components import (
+    alarm_control_panel,
     binary_sensor,
+    button,
     climate,
     cover,
+    datetime,
+    event,
     fan,
     light,
+    lock,
     number,
+    select,
     sensor,
     switch,
+    text,
     text_sensor,
+    valve,
 )
 import esphome.config_validation as cv
 from esphome.const import (
@@ -20,7 +28,9 @@ from esphome.const import (
     CONF_INVERTED,
     CONF_MAX_VALUE,
     CONF_MIN_VALUE,
+    CONF_MODE,
     CONF_NAME,
+    CONF_OPTIONS,
     CONF_OUTPUT_ID,
     CONF_SENSORS,
     CONF_STATE_CLASS,
@@ -31,9 +41,11 @@ from esphome.const import (
     CONF_UNIT_OF_MEASUREMENT,
     DEVICE_CLASS_ENERGY,
     DEVICE_CLASS_HUMIDITY,
+    DEVICE_CLASS_IDENTIFY,
     DEVICE_CLASS_MOISTURE,
     DEVICE_CLASS_MOTION,
     DEVICE_CLASS_TEMPERATURE,
+    DEVICE_CLASS_UPDATE,
     ICON_BLUETOOTH,
     ICON_BLUR,
     ICON_THERMOMETER,
@@ -45,38 +57,68 @@ from esphome.const import (
 )
 
 AUTO_LOAD = [
+    "alarm_control_panel",
     "binary_sensor",
+    "button",
     "climate",
     "cover",
+    "datetime",
+    "event",
     "fan",
     "light",
+    "lock",
     "number",
+    "select",
     "sensor",
     "switch",
+    "text",
     "text_sensor",
+    "valve",
 ]
 
 demo_ns = cg.esphome_ns.namespace("demo")
+DemoAlarmControlPanel = demo_ns.class_(
+    "DemoAlarmControlPanel", alarm_control_panel.AlarmControlPanel, cg.Component
+)
+DemoAlarmControlPanelType = demo_ns.enum("DemoAlarmControlPanelType", is_class=True)
 DemoBinarySensor = demo_ns.class_(
     "DemoBinarySensor", binary_sensor.BinarySensor, cg.PollingComponent
 )
+DemoButton = demo_ns.class_("DemoButton", button.Button)
 DemoClimate = demo_ns.class_("DemoClimate", climate.Climate, cg.Component)
 DemoClimateType = demo_ns.enum("DemoClimateType", is_class=True)
 DemoCover = demo_ns.class_("DemoCover", cover.Cover, cg.Component)
 DemoCoverType = demo_ns.enum("DemoCoverType", is_class=True)
+DemoDate = demo_ns.class_("DemoDate", datetime.DateEntity, cg.Component)
+DemoDateTime = demo_ns.class_("DemoDateTime", datetime.DateTimeEntity, cg.Component)
+DemoTime = demo_ns.class_("DemoTime", datetime.TimeEntity, cg.Component)
+DemoEvent = demo_ns.class_("DemoEvent", event.Event, cg.Component)
 DemoFan = demo_ns.class_("DemoFan", fan.Fan, cg.Component)
 DemoFanType = demo_ns.enum("DemoFanType", is_class=True)
 DemoLight = demo_ns.class_("DemoLight", light.LightOutput, cg.Component)
 DemoLightType = demo_ns.enum("DemoLightType", is_class=True)
+DemoLock = demo_ns.class_("DemoLock", lock.Lock, cg.Component)
+DemoLockType = demo_ns.enum("DemoLockType", is_class=True)
 DemoNumber = demo_ns.class_("DemoNumber", number.Number, cg.Component)
 DemoNumberType = demo_ns.enum("DemoNumberType", is_class=True)
+DemoSelect = demo_ns.class_("DemoSelect", select.Select, cg.Component)
+DemoSelectType = demo_ns.enum("DemoSelectType", is_class=True)
 DemoSensor = demo_ns.class_("DemoSensor", sensor.Sensor, cg.PollingComponent)
 DemoSwitch = demo_ns.class_("DemoSwitch", switch.Switch, cg.Component)
+DemoText = demo_ns.class_("DemoText", text.Text, cg.Component)
+DemoTextType = demo_ns.enum("DemoTextType", is_class=True)
 DemoTextSensor = demo_ns.class_(
     "DemoTextSensor", text_sensor.TextSensor, cg.PollingComponent
 )
+DemoValve = demo_ns.class_("DemoValve", valve.Valve)
+DemoValveType = demo_ns.enum("DemoValveType", is_class=True)
 
 
+ALARM_CONTROL_PANEL_TYPES = {
+    1: DemoAlarmControlPanelType.TYPE_1,
+    2: DemoAlarmControlPanelType.TYPE_2,
+    3: DemoAlarmControlPanelType.TYPE_3,
+}
 CLIMATE_TYPES = {
     1: DemoClimateType.TYPE_1,
     2: DemoClimateType.TYPE_2,
@@ -103,21 +145,71 @@ LIGHT_TYPES = {
     6: DemoLightType.TYPE_6,
     7: DemoLightType.TYPE_7,
 }
+LOCK_TYPES = {
+    1: DemoLockType.TYPE_1,
+    2: DemoLockType.TYPE_2,
+}
 NUMBER_TYPES = {
     1: DemoNumberType.TYPE_1,
     2: DemoNumberType.TYPE_2,
     3: DemoNumberType.TYPE_3,
 }
+SELECT_TYPES = {
+    1: DemoSelectType.TYPE_1,
+    2: DemoSelectType.TYPE_2,
+}
+TEXT_TYPES = {
+    1: DemoTextType.TYPE_1,
+    2: DemoTextType.TYPE_2,
+}
+VALVE_TYPES = {
+    1: DemoValveType.TYPE_1,
+    2: DemoValveType.TYPE_2,
+}
 
 
+CONF_ALARM_CONTROL_PANELS = "alarm_control_panels"
+CONF_BUTTONS = "buttons"
 CONF_CLIMATES = "climates"
 CONF_COVERS = "covers"
+CONF_DATETIMES = "datetimes"
 CONF_FANS = "fans"
 CONF_LIGHTS = "lights"
+CONF_LOCKS = "locks"
 CONF_NUMBERS = "numbers"
+CONF_SELECTS = "selects"
+CONF_TEXTS = "texts"
+CONF_VALVES = "valves"
 
 CONFIG_SCHEMA = cv.Schema(
     {
+        cv.Optional(
+            CONF_ALARM_CONTROL_PANELS,
+            default=[
+                {
+                    CONF_NAME: "Demo Alarm Control Panel",
+                    CONF_TYPE: 1,
+                },
+                {
+                    CONF_NAME: "Demo Alarm Control Panel Code",
+                    CONF_TYPE: 2,
+                },
+                {
+                    CONF_NAME: "Demo Alarm Control Panel Code to Arm",
+                    CONF_TYPE: 3,
+                },
+            ],
+        ): [
+            alarm_control_panel.alarm_control_panel_schema(
+                DemoAlarmControlPanel
+            ).extend(
+                {
+                    cv.Required(CONF_TYPE): cv.enum(
+                        ALARM_CONTROL_PANEL_TYPES, int=True
+                    ),
+                }
+            )
+        ],
         cv.Optional(
             CONF_BINARY_SENSORS,
             default=[
@@ -135,6 +227,21 @@ CONFIG_SCHEMA = cv.Schema(
                 cv.polling_component_schema("60s")
             )
         ],
+        cv.Optional(
+            CONF_BUTTONS,
+            default=[
+                {
+                    CONF_NAME: "Demo Update Button",
+                    CONF_DEVICE_CLASS: DEVICE_CLASS_UPDATE,
+                },
+                {
+                    CONF_NAME: "Demo Button Identify",
+                    CONF_DEVICE_CLASS: DEVICE_CLASS_IDENTIFY,
+                },
+            ],
+        ): [
+            button.button_schema(DemoButton),
+        ],
         cv.Optional(
             CONF_CLIMATES,
             default=[
@@ -191,6 +298,20 @@ CONFIG_SCHEMA = cv.Schema(
                 }
             )
         ],
+        cv.Optional(
+            CONF_DATETIMES,
+            default=[
+                {CONF_NAME: "Demo DateTime", CONF_TYPE: "DATETIME"},
+                {CONF_NAME: "Demo Date", CONF_TYPE: "DATE"},
+                {CONF_NAME: "Demo Time", CONF_TYPE: "TIME"},
+            ],
+        ): [
+            cv.Any(
+                datetime.date_schema(DemoDate),
+                datetime.datetime_schema(DemoDateTime),
+                datetime.time_schema(DemoTime),
+            )
+        ],
         cv.Optional(
             CONF_FANS,
             default=[
@@ -262,6 +383,19 @@ CONFIG_SCHEMA = cv.Schema(
                 }
             )
         ],
+        cv.Optional(
+            CONF_LOCKS,
+            default=[
+                {CONF_NAME: "Demo Lock", CONF_TYPE: 1},
+                {CONF_NAME: "Demo Lock and Open", CONF_TYPE: 2},
+            ],
+        ): [
+            lock.lock_schema(DemoLock).extend(
+                {
+                    cv.Required(CONF_TYPE): cv.enum(LOCK_TYPES, int=True),
+                }
+            )
+        ],
         cv.Optional(
             CONF_NUMBERS,
             default=[
@@ -299,6 +433,28 @@ CONFIG_SCHEMA = cv.Schema(
                 }
             )
         ],
+        cv.Optional(
+            CONF_SELECTS,
+            default=[
+                {
+                    CONF_NAME: "Demo Select 1",
+                    CONF_OPTIONS: ["Option 1", "Option 2", "Option 3"],
+                    CONF_TYPE: 1,
+                },
+                {
+                    CONF_NAME: "Demo Select 2",
+                    CONF_OPTIONS: ["Option A", "Option B", "Option C"],
+                    CONF_TYPE: 2,
+                },
+            ],
+        ): [
+            select.select_schema(DemoSelect).extend(
+                {
+                    cv.Required(CONF_TYPE): cv.enum(SELECT_TYPES, int=True),
+                    cv.Required(CONF_OPTIONS): cv.ensure_list(cv.string_strict),
+                }
+            )
+        ],
         cv.Optional(
             CONF_SENSORS,
             default=[
@@ -355,6 +511,19 @@ CONFIG_SCHEMA = cv.Schema(
                 },
             ],
         ): [switch.switch_schema(DemoSwitch).extend(cv.COMPONENT_SCHEMA)],
+        cv.Optional(
+            CONF_TEXTS,
+            default=[
+                {CONF_NAME: "Demo Text 1", CONF_MODE: "TEXT", CONF_TYPE: 1},
+                {CONF_NAME: "Demo Text 2", CONF_MODE: "PASSWORD", CONF_TYPE: 2},
+            ],
+        ): [
+            text.text_schema(DemoText).extend(
+                {
+                    cv.Required(CONF_TYPE): cv.enum(TEXT_TYPES, int=True),
+                }
+            )
+        ],
         cv.Optional(
             CONF_TEXT_SENSORS,
             default=[
@@ -371,15 +540,35 @@ CONFIG_SCHEMA = cv.Schema(
                 cv.polling_component_schema("60s")
             )
         ],
+        cv.Optional(
+            CONF_VALVES,
+            default=[
+                {CONF_NAME: "Demo Valve 1", CONF_TYPE: 1},
+                {CONF_NAME: "Demo Valve 2", CONF_TYPE: 2},
+            ],
+        ): [
+            valve.valve_schema(DemoValve).extend(
+                {
+                    cv.Required(CONF_TYPE): cv.enum(VALVE_TYPES, int=True),
+                }
+            )
+        ],
     }
 )
 
 
 async def to_code(config):
+    for conf in config[CONF_ALARM_CONTROL_PANELS]:
+        var = await alarm_control_panel.new_alarm_control_panel(conf)
+        await cg.register_component(var, conf)
+
     for conf in config[CONF_BINARY_SENSORS]:
         var = await binary_sensor.new_binary_sensor(conf)
         await cg.register_component(var, conf)
 
+    for conf in config[CONF_BUTTONS]:
+        await button.new_button(conf)
+
     for conf in config[CONF_CLIMATES]:
         var = await climate.new_climate(conf)
         await cg.register_component(var, conf)
@@ -390,6 +579,10 @@ async def to_code(config):
         await cg.register_component(var, conf)
         cg.add(var.set_type(conf[CONF_TYPE]))
 
+    for conf in config[CONF_DATETIMES]:
+        var = await datetime.new_datetime(conf)
+        await cg.register_component(var, conf)
+
     for conf in config[CONF_FANS]:
         var = await fan.new_fan(conf)
         await cg.register_component(var, conf)
@@ -400,6 +593,11 @@ async def to_code(config):
         await cg.register_component(var, conf)
         cg.add(var.set_type(conf[CONF_TYPE]))
 
+    for conf in config[CONF_LOCKS]:
+        var = await lock.new_lock(conf)
+        if conf[CONF_TYPE] == 2:
+            cg.add(var.traits.set_supports_open(True))
+
     for conf in config[CONF_NUMBERS]:
         var = await number.new_number(
             conf,
@@ -410,6 +608,10 @@ async def to_code(config):
         await cg.register_component(var, conf)
         cg.add(var.set_type(conf[CONF_TYPE]))
 
+    for conf in config[CONF_SELECTS]:
+        var = await select.new_select(conf, options=conf[CONF_OPTIONS])
+        await cg.register_component(var, conf)
+
     for conf in config[CONF_SENSORS]:
         var = await sensor.new_sensor(conf)
         await cg.register_component(var, conf)
@@ -418,6 +620,16 @@ async def to_code(config):
         var = await switch.new_switch(conf)
         await cg.register_component(var, conf)
 
+    for conf in config[CONF_TEXTS]:
+        var = await text.new_text(conf)
+        await cg.register_component(var, conf)
+        if conf[CONF_TYPE] == 2:
+            cg.add(var.traits.set_mode(text.TextMode.TEXT_MODE_PASSWORD))
+
     for conf in config[CONF_TEXT_SENSORS]:
         var = await text_sensor.new_text_sensor(conf)
         await cg.register_component(var, conf)
+
+    for conf in config[CONF_VALVES]:
+        var = await valve.new_valve(conf)
+        cg.add(var.set_type(conf[CONF_TYPE]))
diff --git a/esphome/components/demo/demo_alarm_control_panel.h b/esphome/components/demo/demo_alarm_control_panel.h
new file mode 100644
index 0000000000..9902d27882
--- /dev/null
+++ b/esphome/components/demo/demo_alarm_control_panel.h
@@ -0,0 +1,65 @@
+#pragma once
+
+#include "esphome/components/alarm_control_panel/alarm_control_panel.h"
+#include "esphome/core/component.h"
+
+namespace esphome {
+namespace demo {
+
+using namespace alarm_control_panel;
+
+enum class DemoAlarmControlPanelType {
+  TYPE_1,
+  TYPE_2,
+  TYPE_3,
+};
+
+class DemoAlarmControlPanel : public AlarmControlPanel, public Component {
+ public:
+  void setup() override {}
+
+  uint32_t get_supported_features() const override { return ACP_FEAT_ARM_AWAY | ACP_FEAT_TRIGGER; }
+
+  bool get_requires_code() const override { return this->type_ != DemoAlarmControlPanelType::TYPE_1; }
+
+  bool get_requires_code_to_arm() const override { return this->type_ == DemoAlarmControlPanelType::TYPE_3; }
+
+  void set_type(DemoAlarmControlPanelType type) { this->type_ = type; }
+
+ protected:
+  void control(const AlarmControlPanelCall &call) override {
+    auto state = call.get_state().value_or(ACP_STATE_DISARMED);
+    switch (state) {
+      case ACP_STATE_ARMED_AWAY:
+        if (this->get_requires_code_to_arm() && call.get_code().has_value()) {
+          if (call.get_code().value() != "1234") {
+            this->status_momentary_error("Invalid code", 5000);
+            return;
+          }
+        }
+        this->publish_state(ACP_STATE_ARMED_AWAY);
+        break;
+      case ACP_STATE_DISARMED:
+        if (this->get_requires_code() && call.get_code().has_value()) {
+          if (call.get_code().value() != "1234") {
+            this->status_momentary_error("Invalid code", 5000);
+            return;
+          }
+        }
+        this->publish_state(ACP_STATE_DISARMED);
+        return;
+      case ACP_STATE_TRIGGERED:
+        this->publish_state(ACP_STATE_TRIGGERED);
+        return;
+      case ACP_STATE_PENDING:
+        this->publish_state(ACP_STATE_PENDING);
+        return;
+      default:
+        break;
+    }
+  }
+  DemoAlarmControlPanelType type_{};
+};
+
+}  // namespace demo
+}  // namespace esphome
diff --git a/esphome/components/demo/demo_button.h b/esphome/components/demo/demo_button.h
new file mode 100644
index 0000000000..be80d26a8a
--- /dev/null
+++ b/esphome/components/demo/demo_button.h
@@ -0,0 +1,15 @@
+#pragma once
+
+#include "esphome/components/button/button.h"
+#include "esphome/core/log.h"
+
+namespace esphome {
+namespace demo {
+
+class DemoButton : public button::Button {
+ protected:
+  void press_action() override {}
+};
+
+}  // namespace demo
+}  // namespace esphome
diff --git a/esphome/components/demo/demo_date.h b/esphome/components/demo/demo_date.h
new file mode 100644
index 0000000000..e09ab5f887
--- /dev/null
+++ b/esphome/components/demo/demo_date.h
@@ -0,0 +1,34 @@
+#pragma once
+
+#include "esphome/core/defines.h"
+
+#ifdef USE_DATETIME_DATE
+
+#include "esphome/components/datetime/date_entity.h"
+#include "esphome/core/component.h"
+
+namespace esphome {
+namespace demo {
+
+class DemoDate : public datetime::DateEntity, public Component {
+ public:
+  void setup() override {
+    this->year_ = 2038;
+    this->month_ = 01;
+    this->day_ = 19;
+    this->publish_state();
+  }
+
+ protected:
+  void control(const datetime::DateCall &call) override {
+    this->year_ = call.get_year().value_or(this->year_);
+    this->month_ = call.get_month().value_or(this->month_);
+    this->day_ = call.get_day().value_or(this->day_);
+    this->publish_state();
+  }
+};
+
+}  // namespace demo
+}  // namespace esphome
+
+#endif
diff --git a/esphome/components/demo/demo_datetime.h b/esphome/components/demo/demo_datetime.h
new file mode 100644
index 0000000000..5ebcc3e64e
--- /dev/null
+++ b/esphome/components/demo/demo_datetime.h
@@ -0,0 +1,40 @@
+#pragma once
+
+#include "esphome/core/defines.h"
+
+#ifdef USE_DATETIME_DATETIME
+
+#include "esphome/components/datetime/datetime_entity.h"
+#include "esphome/core/component.h"
+
+namespace esphome {
+namespace demo {
+
+class DemoDateTime : public datetime::DateTimeEntity, public Component {
+ public:
+  void setup() override {
+    this->year_ = 2038;
+    this->month_ = 01;
+    this->day_ = 19;
+    this->hour_ = 3;
+    this->minute_ = 14;
+    this->second_ = 8;
+    this->publish_state();
+  }
+
+ protected:
+  void control(const datetime::DateTimeCall &call) override {
+    this->year_ = call.get_year().value_or(this->year_);
+    this->month_ = call.get_month().value_or(this->month_);
+    this->day_ = call.get_day().value_or(this->day_);
+    this->hour_ = call.get_hour().value_or(this->hour_);
+    this->minute_ = call.get_minute().value_or(this->minute_);
+    this->second_ = call.get_second().value_or(this->second_);
+    this->publish_state();
+  }
+};
+
+}  // namespace demo
+}  // namespace esphome
+
+#endif
diff --git a/esphome/components/demo/demo_lock.h b/esphome/components/demo/demo_lock.h
new file mode 100644
index 0000000000..94d0f70a14
--- /dev/null
+++ b/esphome/components/demo/demo_lock.h
@@ -0,0 +1,17 @@
+#pragma once
+
+#include "esphome/components/lock/lock.h"
+
+namespace esphome {
+namespace demo {
+
+class DemoLock : public lock::Lock {
+ protected:
+  void control(const lock::LockCall &call) override {
+    auto state = *call.get_state();
+    this->publish_state(state);
+  }
+};
+
+}  // namespace demo
+}  // namespace esphome
diff --git a/esphome/components/demo/demo_select.h b/esphome/components/demo/demo_select.h
new file mode 100644
index 0000000000..1951a684a2
--- /dev/null
+++ b/esphome/components/demo/demo_select.h
@@ -0,0 +1,15 @@
+#pragma once
+
+#include "esphome/components/select/select.h"
+#include "esphome/core/component.h"
+
+namespace esphome {
+namespace demo {
+
+class DemoSelect : public select::Select, public Component {
+ protected:
+  void control(const std::string &value) override { this->publish_state(value); }
+};
+
+}  // namespace demo
+}  // namespace esphome
diff --git a/esphome/components/demo/demo_text.h b/esphome/components/demo/demo_text.h
new file mode 100644
index 0000000000..a753175062
--- /dev/null
+++ b/esphome/components/demo/demo_text.h
@@ -0,0 +1,18 @@
+#pragma once
+
+#include "esphome/components/text/text.h"
+#include "esphome/core/component.h"
+
+namespace esphome {
+namespace demo {
+
+class DemoText : public text::Text, public Component {
+ public:
+  void setup() override { this->publish_state("I am a text entity"); }
+
+ protected:
+  void control(const std::string &value) override { this->publish_state(value); }
+};
+
+}  // namespace demo
+}  // namespace esphome
diff --git a/esphome/components/demo/demo_time.h b/esphome/components/demo/demo_time.h
new file mode 100644
index 0000000000..42788504bb
--- /dev/null
+++ b/esphome/components/demo/demo_time.h
@@ -0,0 +1,34 @@
+#pragma once
+
+#include "esphome/core/defines.h"
+
+#ifdef USE_DATETIME_TIME
+
+#include "esphome/components/datetime/time_entity.h"
+#include "esphome/core/component.h"
+
+namespace esphome {
+namespace demo {
+
+class DemoTime : public datetime::TimeEntity, public Component {
+ public:
+  void setup() override {
+    this->hour_ = 3;
+    this->minute_ = 14;
+    this->second_ = 8;
+    this->publish_state();
+  }
+
+ protected:
+  void control(const datetime::TimeCall &call) override {
+    this->hour_ = call.get_hour().value_or(this->hour_);
+    this->minute_ = call.get_minute().value_or(this->minute_);
+    this->second_ = call.get_second().value_or(this->second_);
+    this->publish_state();
+  }
+};
+
+}  // namespace demo
+}  // namespace esphome
+
+#endif
diff --git a/esphome/components/demo/demo_valve.h b/esphome/components/demo/demo_valve.h
new file mode 100644
index 0000000000..4cdf9dea67
--- /dev/null
+++ b/esphome/components/demo/demo_valve.h
@@ -0,0 +1,50 @@
+#pragma once
+
+#include "esphome/components/valve/valve.h"
+
+namespace esphome {
+namespace demo {
+
+enum class DemoValveType {
+  TYPE_1,
+  TYPE_2,
+};
+
+class DemoValve : public valve::Valve {
+ public:
+  valve::ValveTraits get_traits() override {
+    valve::ValveTraits traits;
+    if (this->type_ == DemoValveType::TYPE_2) {
+      traits.set_supports_position(true);
+      traits.set_supports_toggle(true);
+      traits.set_supports_stop(true);
+    }
+    return traits;
+  }
+
+  void set_type(DemoValveType type) { this->type_ = type; }
+
+ protected:
+  void control(const valve::ValveCall &call) override {
+    if (call.get_position().has_value()) {
+      this->publish_state(*call.get_position());
+      return;
+    } else if (call.get_toggle().has_value()) {
+      if (call.get_toggle().value()) {
+        if (this->position == valve::VALVE_OPEN) {
+          this->publish_state(valve::VALVE_CLOSED);
+        } else {
+          this->publish_state(valve::VALVE_OPEN);
+        }
+      }
+      return;
+    } else if (call.get_stop()) {
+      this->publish_state(this->position);  // Keep the current position
+      return;
+    }
+  }
+  DemoValveType type_{};
+};
+
+}  // namespace demo
+}  // namespace esphome