Merge branch 'esp8266-native-converter-hardening' into esp8266-native-library-converter

esphome/components/a01nyub/sensor.py

@@ -6,6 +6,7 @@ from esphome.const import (
     STATE_CLASS_MEASUREMENT,
     UNIT_METER,
 )
+from esphome.types import ConfigType
 
 CODEOWNERS = ["@MrSuicideParrot"]
 DEPENDENCIES = ["uart"]
@@ -35,7 +36,7 @@ FINAL_VALIDATE_SCHEMA = uart.final_validate_device_schema(
 )
 
 
-async def to_code(config):
+async def to_code(config: ConfigType) -> None:
     var = await sensor.new_sensor(config)
     await cg.register_component(var, config)
     await uart.register_uart_device(var, config)

esphome/components/a02yyuw/sensor.py

@@ -6,6 +6,7 @@ from esphome.const import (
     STATE_CLASS_MEASUREMENT,
     UNIT_MILLIMETER,
 )
+from esphome.types import ConfigType
 
 CODEOWNERS = ["@TH-Braemer"]
 DEPENDENCIES = ["uart"]
@@ -35,7 +36,7 @@ FINAL_VALIDATE_SCHEMA = uart.final_validate_device_schema(
 )
 
 
-async def to_code(config):
+async def to_code(config: ConfigType) -> None:
     var = await sensor.new_sensor(config)
     await cg.register_component(var, config)
     await uart.register_uart_device(var, config)

esphome/components/a4988/stepper.py

@@ -3,6 +3,7 @@ import esphome.codegen as cg
 from esphome.components import stepper
 import esphome.config_validation as cv
 from esphome.const import CONF_DIR_PIN, CONF_ID, CONF_SLEEP_PIN, CONF_STEP_PIN
+from esphome.types import ConfigType
 
 a4988_ns = cg.esphome_ns.namespace("a4988")
 A4988 = a4988_ns.class_("A4988", stepper.Stepper, cg.Component)
@@ -17,7 +18,7 @@ CONFIG_SCHEMA = stepper.STEPPER_SCHEMA.extend(
 ).extend(cv.COMPONENT_SCHEMA)
 
 
-async def to_code(config):
+async def to_code(config: ConfigType) -> None:
     var = cg.new_Pvariable(config[CONF_ID])
     await cg.register_component(var, config)
     await stepper.register_stepper(var, config)

esphome/components/absolute_humidity/sensor.py

@@ -9,6 +9,7 @@ from esphome.const import (
     STATE_CLASS_MEASUREMENT,
     UNIT_GRAMS_PER_CUBIC_METER,
 )
+from esphome.types import ConfigType
 
 absolute_humidity_ns = cg.esphome_ns.namespace("absolute_humidity")
 AbsoluteHumidityComponent = absolute_humidity_ns.class_(
@@ -43,7 +44,7 @@ CONFIG_SCHEMA = (
 )
 
 
-async def to_code(config):
+async def to_code(config: ConfigType) -> None:
     var = await sensor.new_sensor(config)
     await cg.register_component(var, config)
 

esphome/components/ac_dimmer/output.py

@@ -4,6 +4,7 @@ from esphome.components import output
 import esphome.config_validation as cv
 from esphome.const import CONF_ID, CONF_METHOD, CONF_MIN_POWER
 from esphome.core import CORE
+from esphome.types import ConfigType
 
 CODEOWNERS = ["@glmnet"]
 
@@ -48,7 +49,7 @@ CONFIG_SCHEMA = cv.All(
 )
 
 
-async def to_code(config):
+async def to_code(config: ConfigType) -> None:
     if CORE.is_esp32:
         from esphome.components.esp32 import include_builtin_idf_component
 

esphome/components/adalight/__init__.py

@@ -4,6 +4,9 @@ from esphome.components.light.effects import register_addressable_effect
 from esphome.components.light.types import AddressableLightEffect
 import esphome.config_validation as cv
 from esphome.const import CONF_NAME, CONF_UART_ID
+from esphome.core import ID
+from esphome.cpp_generator import MockObj
+from esphome.types import ConfigType
 
 DEPENDENCIES = ["uart"]
 
@@ -21,7 +24,7 @@ CONFIG_SCHEMA = cv.Schema({})
     "Adalight",
     {cv.GenerateID(CONF_UART_ID): cv.use_id(uart.UARTComponent)},
 )
-async def adalight_light_effect_to_code(config, effect_id):
+async def adalight_light_effect_to_code(config: ConfigType, effect_id: ID) -> MockObj:
     effect = cg.new_Pvariable(effect_id, config[CONF_NAME])
     await uart.register_uart_device(effect, config)
     return effect

esphome/components/adc128s102/__init__.py

@@ -2,6 +2,7 @@ import esphome.codegen as cg
 from esphome.components import spi
 import esphome.config_validation as cv
 from esphome.const import CONF_ID
+from esphome.types import ConfigType
 
 DEPENDENCIES = ["spi"]
 MULTI_CONF = True
@@ -17,7 +18,7 @@ CONFIG_SCHEMA = cv.Schema(
 ).extend(spi.spi_device_schema(cs_pin_required=True))
 
 
-async def to_code(config):
+async def to_code(config: ConfigType) -> None:
     var = cg.new_Pvariable(config[CONF_ID])
     await cg.register_component(var, config)
     await spi.register_spi_device(var, config)

esphome/components/adc128s102/sensor/__init__.py

@@ -2,6 +2,7 @@ import esphome.codegen as cg
 from esphome.components import sensor, voltage_sampler
 import esphome.config_validation as cv
 from esphome.const import CONF_CHANNEL, CONF_ID
+from esphome.types import ConfigType
 
 from .. import ADC128S102, adc128s102_ns
 
@@ -28,7 +29,7 @@ CONFIG_SCHEMA = (
 )
 
 
-async def to_code(config):
+async def to_code(config: ConfigType) -> None:
     var = cg.new_Pvariable(
         config[CONF_ID],
         config[CONF_CHANNEL],

esphome/components/addressable_light/display.py

@@ -11,6 +11,7 @@ from esphome.const import (
     CONF_UPDATE_INTERVAL,
     CONF_WIDTH,
 )
+from esphome.types import ConfigType
 
 CODEOWNERS = ["@justfalter"]
 
@@ -38,7 +39,7 @@ CONFIG_SCHEMA = cv.All(
 )
 
 
-async def to_code(config):
+async def to_code(config: ConfigType) -> None:
     var = cg.new_Pvariable(config[CONF_ID])
     wrapped_light = await cg.get_variable(config[CONF_ADDRESSABLE_LIGHT_ID])
     cg.add(var.set_width(config[CONF_WIDTH]))

esphome/components/ade7880/sensor.py

@@ -36,6 +36,7 @@ from esphome.const import (
     UNIT_WATT,
     UNIT_WATT_HOURS,
 )
+from esphome.cpp_generator import MockObj
 from esphome.types import ConfigType
 
 DEPENDENCIES = ["i2c"]
@@ -243,7 +244,7 @@ CONFIG_SCHEMA = cv.All(
 )
 
 
-async def neutral_channel(config):
+async def neutral_channel(config: ConfigType) -> MockObj:
     var = cg.new_Pvariable(config[CONF_ID])
 
     current = config[CONF_CURRENT]
@@ -257,7 +258,7 @@ async def neutral_channel(config):
     return var
 
 
-async def power_channel(config):
+async def power_channel(config: ConfigType) -> MockObj:
     var = cg.new_Pvariable(config[CONF_ID])
 
     for sensor_type in POWER_SENSOR_TYPES:
@@ -280,7 +281,7 @@ async def power_channel(config):
     return var
 
 
-async def to_code(config):
+async def to_code(config: ConfigType) -> None:
     var = cg.new_Pvariable(config[CONF_ID])
     await cg.register_component(var, config)
     await i2c.register_i2c_device(var, config)

esphome/components/ade7953_base/__init__.py

@@ -23,6 +23,8 @@ from esphome.const import (
     UNIT_VOLT_AMPS_REACTIVE,
     UNIT_WATT,
 )
+from esphome.cpp_generator import MockObj
+from esphome.types import ConfigType
 
 CODEOWNERS = ["@angelnu"]
 
@@ -163,7 +165,7 @@ ADE7953_CONFIG_SCHEMA = cv.Schema(
 ).extend(cv.polling_component_schema("60s"))
 
 
-async def register_ade7953(var, config):
+async def register_ade7953(var: MockObj, config: ConfigType) -> None:
     await cg.register_component(var, config)
 
     if irq_pin_config := config.get(CONF_IRQ_PIN):

esphome/components/ade7953_i2c/sensor.py

@@ -2,6 +2,7 @@ import esphome.codegen as cg
 from esphome.components import ade7953_base, i2c
 import esphome.config_validation as cv
 from esphome.const import CONF_ID
+from esphome.types import ConfigType
 
 DEPENDENCIES = ["i2c"]
 AUTO_LOAD = ["ade7953_base"]
@@ -20,7 +21,7 @@ CONFIG_SCHEMA = (
 )
 
 
-async def to_code(config):
+async def to_code(config: ConfigType) -> None:
     var = cg.new_Pvariable(config[CONF_ID])
     await i2c.register_i2c_device(var, config)
     await ade7953_base.register_ade7953(var, config)

esphome/components/ade7953_spi/sensor.py

@@ -2,6 +2,7 @@ import esphome.codegen as cg
 from esphome.components import ade7953_base, spi
 import esphome.config_validation as cv
 from esphome.const import CONF_ID
+from esphome.types import ConfigType
 
 DEPENDENCIES = ["spi"]
 AUTO_LOAD = ["ade7953_base"]
@@ -20,7 +21,7 @@ CONFIG_SCHEMA = (
 )
 
 
-async def to_code(config):
+async def to_code(config: ConfigType) -> None:
     var = cg.new_Pvariable(config[CONF_ID])
     await spi.register_spi_device(var, config)
     await ade7953_base.register_ade7953(var, config)

esphome/components/ads1115/__init__.py

@@ -2,6 +2,7 @@ import esphome.codegen as cg
 from esphome.components import i2c
 import esphome.config_validation as cv
 from esphome.const import CONF_ID
+from esphome.types import ConfigType
 
 DEPENDENCIES = ["i2c"]
 MULTI_CONF = True
@@ -24,7 +25,7 @@ CONFIG_SCHEMA = (
 )
 
 
-async def to_code(config):
+async def to_code(config: ConfigType) -> None:
     var = cg.new_Pvariable(config[CONF_ID])
     await cg.register_component(var, config)
     await i2c.register_i2c_device(var, config)

esphome/components/ads1115/sensor/__init__.py

@@ -11,6 +11,7 @@ from esphome.const import (
     STATE_CLASS_MEASUREMENT,
     UNIT_VOLT,
 )
+from esphome.types import ConfigType
 
 from .. import CONF_ADS1115_ID, ADS1115Component, ads1115_ns
 
@@ -86,7 +87,7 @@ CONFIG_SCHEMA = (
 )
 
 
-async def to_code(config):
+async def to_code(config: ConfigType) -> None:
     var = cg.new_Pvariable(config[CONF_ID])
     await sensor.register_sensor(var, config)
     await cg.register_component(var, config)

esphome/components/ads1118/__init__.py

@@ -2,6 +2,7 @@ import esphome.codegen as cg
 from esphome.components import spi
 import esphome.config_validation as cv
 from esphome.const import CONF_ID
+from esphome.types import ConfigType
 
 CODEOWNERS = ["@solomondg1"]
 DEPENDENCIES = ["spi"]
@@ -23,7 +24,7 @@ CONFIG_SCHEMA = (
 )
 
 
-async def to_code(config):
+async def to_code(config: ConfigType) -> None:
     var = cg.new_Pvariable(config[CONF_ID])
     await cg.register_component(var, config)
     await spi.register_spi_device(var, config)

esphome/components/ads1118/sensor/__init__.py

@@ -11,6 +11,7 @@ from esphome.const import (
     UNIT_CELSIUS,
     UNIT_VOLT,
 )
+from esphome.types import ConfigType
 
 from .. import ADS1118, CONF_ADS1118_ID, ads1118_ns
 
@@ -86,7 +87,7 @@ CONFIG_SCHEMA = cv.typed_schema(
 )
 
 
-async def to_code(config):
+async def to_code(config: ConfigType) -> None:
     var = await sensor.new_sensor(config)
     await cg.register_component(var, config)
     await cg.register_parented(var, config[CONF_ADS1118_ID])

esphome/components/aht10/sensor.py

@@ -12,6 +12,7 @@ from esphome.const import (
     UNIT_CELSIUS,
     UNIT_PERCENT,
 )
+from esphome.types import ConfigType
 
 DEPENDENCIES = ["i2c"]
 
@@ -50,7 +51,7 @@ CONFIG_SCHEMA = (
 )
 
 
-async def to_code(config):
+async def to_code(config: ConfigType) -> None:
     var = cg.new_Pvariable(config[CONF_ID])
     await cg.register_component(var, config)
     await i2c.register_i2c_device(var, config)

esphome/components/airthings_ble/__init__.py

@@ -2,6 +2,7 @@ import esphome.codegen as cg
 from esphome.components import ble_device_base
 import esphome.config_validation as cv
 from esphome.const import CONF_ID
+from esphome.types import ConfigType
 
 AUTO_LOAD = ["ble_device_base"]
 CODEOWNERS = ["@jeromelaban"]
@@ -21,6 +22,6 @@ CONFIG_SCHEMA = cv.All(
 )
 
 
-async def to_code(config):
+async def to_code(config: ConfigType) -> None:
     var = cg.new_Pvariable(config[CONF_ID])
     await ble_device_base.register_ble_device(var, config)

esphome/components/airthings_wave_base/__init__.py

@@ -20,6 +20,8 @@ from esphome.const import (
     UNIT_PERCENT,
     UNIT_VOLT,
 )
+from esphome.cpp_generator import MockObj
+from esphome.types import ConfigType
 
 CODEOWNERS = ["@ncareau", "@jeromelaban"]
 
@@ -78,7 +80,7 @@ BASE_SCHEMA = (
 )
 
 
-async def wave_base_to_code(var, config):
+async def wave_base_to_code(var: MockObj, config: ConfigType) -> None:
     await cg.register_component(var, config)
 
     await ble_client.register_ble_node(var, config)

esphome/components/airthings_wave_mini/sensor.py

@@ -2,6 +2,7 @@ import esphome.codegen as cg
 from esphome.components import airthings_wave_base
 import esphome.config_validation as cv
 from esphome.const import CONF_ID
+from esphome.types import ConfigType
 
 DEPENDENCIES = airthings_wave_base.DEPENDENCIES
 
@@ -20,6 +21,6 @@ CONFIG_SCHEMA = airthings_wave_base.BASE_SCHEMA.extend(
 )
 
 
-async def to_code(config):
+async def to_code(config: ConfigType) -> None:
     var = cg.new_Pvariable(config[CONF_ID])
     await airthings_wave_base.wave_base_to_code(var, config)

esphome/components/airthings_wave_plus/sensor.py

@@ -83,7 +83,7 @@ CONFIG_SCHEMA = cv.All(
 )
 
 
-async def to_code(config):
+async def to_code(config: ConfigType) -> None:
     var = cg.new_Pvariable(config[CONF_ID])
     await airthings_wave_base.wave_base_to_code(var, config)
 

esphome/components/alpha3/sensor.py

@@ -20,6 +20,7 @@ from esphome.const import (
     UNIT_VOLT,
     UNIT_WATT,
 )
+from esphome.types import ConfigType
 
 alpha3_ns = cg.esphome_ns.namespace("alpha3")
 Alpha3 = alpha3_ns.class_("Alpha3", ble_client.BLEClientNode, cg.PollingComponent)
@@ -68,7 +69,7 @@ CONFIG_SCHEMA = (
 )
 
 
-async def to_code(config):
+async def to_code(config: ConfigType) -> None:
     var = cg.new_Pvariable(config[CONF_ID])
     await cg.register_component(var, config)
     await ble_client.register_ble_node(var, config)

esphome/components/am2315c/sensor.py

@@ -11,6 +11,7 @@ from esphome.const import (
     UNIT_CELSIUS,
     UNIT_PERCENT,
 )
+from esphome.types import ConfigType
 
 DEPENDENCIES = ["i2c"]
 
@@ -40,7 +41,7 @@ CONFIG_SCHEMA = (
 )
 
 
-async def to_code(config):
+async def to_code(config: ConfigType) -> None:
     var = cg.new_Pvariable(config[CONF_ID])
     await cg.register_component(var, config)
     await i2c.register_i2c_device(var, config)

esphome/components/am2320/sensor.py

@@ -11,6 +11,7 @@ from esphome.const import (
     UNIT_CELSIUS,
     UNIT_PERCENT,
 )
+from esphome.types import ConfigType
 
 DEPENDENCIES = ["i2c"]
 
@@ -42,7 +43,7 @@ CONFIG_SCHEMA = (
 )
 
 
-async def to_code(config):
+async def to_code(config: ConfigType) -> None:
     var = cg.new_Pvariable(config[CONF_ID])
     await cg.register_component(var, config)
     await i2c.register_i2c_device(var, config)

esphome/components/am43/cover/__init__.py

@@ -2,6 +2,7 @@ import esphome.codegen as cg
 from esphome.components import ble_client, cover
 import esphome.config_validation as cv
 from esphome.const import CONF_PIN
+from esphome.types import ConfigType
 
 CODEOWNERS = ["@buxtronix"]
 DEPENDENCIES = ["ble_client"]
@@ -27,7 +28,7 @@ CONFIG_SCHEMA = (
 )
 
 
-async def to_code(config):
+async def to_code(config: ConfigType) -> None:
     var = await cover.new_cover(config)
     cg.add(var.set_pin(config[CONF_PIN]))
     cg.add(var.set_invert_position(config[CONF_INVERT_POSITION]))

esphome/components/am43/sensor/__init__.py

@@ -11,6 +11,7 @@ from esphome.const import (
     STATE_CLASS_MEASUREMENT,
     UNIT_PERCENT,
 )
+from esphome.types import ConfigType
 
 AUTO_LOAD = ["am43"]
 CODEOWNERS = ["@buxtronix"]
@@ -42,7 +43,7 @@ CONFIG_SCHEMA = (
 )
 
 
-async def to_code(config):
+async def to_code(config: ConfigType) -> None:
     var = cg.new_Pvariable(config[CONF_ID])
     await cg.register_component(var, config)
     await ble_client.register_ble_node(var, config)

esphome/components/analog_threshold/binary_sensor.py

@@ -2,6 +2,7 @@ import esphome.codegen as cg
 from esphome.components import binary_sensor, sensor
 import esphome.config_validation as cv
 from esphome.const import CONF_SENSOR_ID, CONF_THRESHOLD
+from esphome.types import ConfigType
 
 analog_threshold_ns = cg.esphome_ns.namespace("analog_threshold")
 
@@ -32,7 +33,7 @@ CONFIG_SCHEMA = (
 )
 
 
-async def to_code(config):
+async def to_code(config: ConfigType) -> None:
     var = await binary_sensor.new_binary_sensor(config)
     await cg.register_component(var, config)
 

esphome/components/anova/climate.py

@@ -2,6 +2,7 @@ import esphome.codegen as cg
 from esphome.components import ble_client, climate
 import esphome.config_validation as cv
 from esphome.const import CONF_UNIT_OF_MEASUREMENT
+from esphome.types import ConfigType
 
 UNITS = {
     "f": "f",
@@ -28,7 +29,7 @@ CONFIG_SCHEMA = (
 )
 
 
-async def to_code(config):
+async def to_code(config: ConfigType) -> None:
     var = await climate.new_climate(config)
     await cg.register_component(var, config)
     await ble_client.register_ble_node(var, config)

esphome/components/apds9306/sensor.py

@@ -1,6 +1,8 @@
 # Based on this datasheet:
 # https://www.mouser.ca/datasheet/2/678/AVGO_S_A0002854364_1-2574547.pdf
 
+from typing import Any
+
 import esphome.codegen as cg
 from esphome.components import i2c, sensor
 import esphome.config_validation as cv
@@ -11,6 +13,8 @@ from esphome.const import (
     STATE_CLASS_MEASUREMENT,
     UNIT_LUX,
 )
+from esphome.cpp_generator import MockObj
+from esphome.types import ConfigType
 
 DEPENDENCIES = ["i2c"]
 
@@ -55,7 +59,7 @@ AMBIENT_LIGHT_GAINS = {
 }
 
 
-def _validate_measurement_rate(value):
+def _validate_measurement_rate(value: Any) -> MockObj:
     value = cv.positive_time_period_milliseconds(value)
     return cv.enum(MEASUREMENT_RATES, int=True)(value.total_milliseconds)
 
@@ -85,7 +89,7 @@ CONFIG_SCHEMA = (
 )
 
 
-async def to_code(config):
+async def to_code(config: ConfigType) -> None:
     var = await sensor.new_sensor(config)
     await cg.register_component(var, config)
     await i2c.register_i2c_device(var, config)

esphome/components/api/__init__.py

@@ -14,7 +14,7 @@ from esphome.components.noise import (  # noqa: F401
     encryption_schema,
     validate_encryption_key,
 )
-from esphome.config_helpers import get_logger_level
+from esphome.config_helpers import filter_source_files_from_defines, get_logger_level
 import esphome.config_validation as cv
 from esphome.const import (
     CONF_ACTION,
@@ -835,11 +835,20 @@ async def api_connected_to_code(
     return var
 
 
+# user_services.cpp is only needed when user defined actions exist; the
+# frame helpers are fully #ifdef'd on the protocol defines set in to_code
+# (both are set when encryption is configured without a key).
+_define_filter = filter_source_files_from_defines(
+    {
+        "user_services.cpp": "USE_API_USER_DEFINED_ACTIONS",
+        "api_frame_helper_noise.cpp": "USE_API_NOISE",
+        "api_frame_helper_plaintext.cpp": "USE_API_PLAINTEXT",
+    }
+)
+
+
 def FILTER_SOURCE_FILES() -> list[str]:
-    """Filter out api_pb2_dump.cpp when proto message dumping is not enabled,
-    user_services.cpp when no services are defined, and protocol-specific
-    implementations based on encryption configuration."""
-    files_to_filter: list[str] = []
+    files_to_filter = _define_filter()
 
     # api_pb2_dump.cpp is only needed when HAS_PROTO_MESSAGE_DUMP is defined
     # This is a particularly large file that still needs to be opened and read
@@ -850,21 +859,4 @@ def FILTER_SOURCE_FILES() -> list[str]:
     if get_logger_level() != "VERY_VERBOSE":
         files_to_filter.append("api_pb2_dump.cpp")
 
-    # user_services.cpp is only needed when services are defined
-    config = CORE.config.get(DOMAIN, {})
-    if config and not config.get(CONF_ACTIONS) and not config[CONF_CUSTOM_SERVICES]:
-        files_to_filter.append("user_services.cpp")
-
-    # Filter protocol-specific implementations based on encryption configuration
-    encryption_config = config.get(CONF_ENCRYPTION) if config else None
-
-    # If encryption is not configured at all, we only need plaintext
-    if encryption_config is None:
-        files_to_filter.append("api_frame_helper_noise.cpp")
-    # If encryption is configured with a key, we only need noise
-    elif encryption_config.get(CONF_KEY):
-        files_to_filter.append("api_frame_helper_plaintext.cpp")
-    # If encryption is configured but no key is provided, we need both
-    # (this allows a plaintext client to provide a noise key)
-
     return files_to_filter

esphome/components/api/api.proto

@@ -1002,8 +1002,12 @@ message GetTimeResponse {
   option (no_delay) = true;
 
   fixed32 epoch_seconds = 1;
-  string timezone = 2;
-  ParsedTimezone parsed_timezone = 3;
+  // Deprecated in 2026.9.0: clients still send this string for older firmware,
+  // but new firmware only reads parsed_timezone. Clients older than Home
+  // Assistant 2026.3.0 that send only the string leave the device on its
+  // codegen-configured timezone (or UTC).
+  string timezone = 2 [deprecated = true];
+  ParsedTimezone parsed_timezone = 3 [(track_presence) = true];
 }
 
 // ==================== USER-DEFINES SERVICES ====================

esphome/components/api/api_connection.cpp

@@ -1204,31 +1204,28 @@ void APIConnection::on_get_time_response(const GetTimeResponse &value) {
   if (homeassistant::global_homeassistant_time != nullptr) {
     homeassistant::global_homeassistant_time->set_epoch_time(value.epoch_seconds);
 #if defined(USE_HOMEASSISTANT_TIMEZONE) && defined(USE_TIME_TIMEZONE)
-    if (!value.timezone.empty()) {
-      // Check if the sender provided pre-parsed timezone data.
-      // If std_offset is non-zero or DST rules are present, the parsed data was populated.
-      // For UTC (all zeros), string parsing produces the same result, so the fallback is equivalent.
+    // Apply only if the sender provided pre-parsed timezone data (Home Assistant 2026.3.0
+    // and newer); field presence distinguishes a genuine all-zero UTC timezone from an
+    // absent field. Older clients send only the deprecated timezone string, which is no
+    // longer decoded; for them the device keeps its codegen-configured timezone.
+    if (value.has_parsed_timezone) {
       const auto &pt = value.parsed_timezone;
-      if (pt.std_offset_seconds != 0 || pt.dst_start.type != enums::DST_RULE_TYPE_NONE) {
-        time::ParsedTimezone tz{};
-        tz.std_offset_seconds = pt.std_offset_seconds;
-        tz.dst_offset_seconds = pt.dst_offset_seconds;
-        tz.dst_start.time_seconds = pt.dst_start.time_seconds;
-        tz.dst_start.day = static_cast<uint16_t>(pt.dst_start.day);
-        tz.dst_start.type = static_cast<time::DSTRuleType>(pt.dst_start.type);
-        tz.dst_start.month = static_cast<uint8_t>(pt.dst_start.month);
-        tz.dst_start.week = static_cast<uint8_t>(pt.dst_start.week);
-        tz.dst_start.day_of_week = static_cast<uint8_t>(pt.dst_start.day_of_week);
-        tz.dst_end.time_seconds = pt.dst_end.time_seconds;
-        tz.dst_end.day = static_cast<uint16_t>(pt.dst_end.day);
-        tz.dst_end.type = static_cast<time::DSTRuleType>(pt.dst_end.type);
-        tz.dst_end.month = static_cast<uint8_t>(pt.dst_end.month);
-        tz.dst_end.week = static_cast<uint8_t>(pt.dst_end.week);
-        tz.dst_end.day_of_week = static_cast<uint8_t>(pt.dst_end.day_of_week);
-        time::set_global_tz(tz);
-      } else {
-        homeassistant::global_homeassistant_time->set_timezone(value.timezone.c_str(), value.timezone.size());
-      }
+      time::ParsedTimezone tz{};
+      tz.std_offset_seconds = pt.std_offset_seconds;
+      tz.dst_offset_seconds = pt.dst_offset_seconds;
+      tz.dst_start.time_seconds = pt.dst_start.time_seconds;
+      tz.dst_start.day = static_cast<uint16_t>(pt.dst_start.day);
+      tz.dst_start.type = static_cast<time::DSTRuleType>(pt.dst_start.type);
+      tz.dst_start.month = static_cast<uint8_t>(pt.dst_start.month);
+      tz.dst_start.week = static_cast<uint8_t>(pt.dst_start.week);
+      tz.dst_start.day_of_week = static_cast<uint8_t>(pt.dst_start.day_of_week);
+      tz.dst_end.time_seconds = pt.dst_end.time_seconds;
+      tz.dst_end.day = static_cast<uint16_t>(pt.dst_end.day);
+      tz.dst_end.type = static_cast<time::DSTRuleType>(pt.dst_end.type);
+      tz.dst_end.month = static_cast<uint8_t>(pt.dst_end.month);
+      tz.dst_end.week = static_cast<uint8_t>(pt.dst_end.week);
+      tz.dst_end.day_of_week = static_cast<uint8_t>(pt.dst_end.day_of_week);
+      time::set_global_tz(tz);
     }
 #endif
   }

esphome/components/api/api_options.proto

@@ -116,4 +116,10 @@ extend google.protobuf.FieldOptions {
     // the per-byte loop when the upper bits are non-zero (the common case
     // for real MAC addresses, since OUIs occupy the top 24 bits).
     optional bool mac_address = 50019 [default=false];
+
+    // track_presence: Track whether this message-typed field was present on the wire.
+    // Generates a `bool has_<field>{false};` member on the decoding side that is set
+    // to true when the field arrives, so an all-default submessage can be told apart
+    // from an absent one (e.g. a UTC ParsedTimezone, which is all zeros).
+    optional bool track_presence = 50020 [default=false];
 }

esphome/components/api/api_pb2.cpp

@@ -1249,12 +1249,9 @@ bool ParsedTimezone::decode_length(uint32_t field_id, ProtoLengthDelimited value
 }
 bool GetTimeResponse::decode_length(uint32_t field_id, ProtoLengthDelimited value) {
   switch (field_id) {
-    case 2: {
-      this->timezone = StringRef(reinterpret_cast<const char *>(value.data()), value.size());
-      break;
-    }
     case 3:
       value.decode_to_message(this->parsed_timezone);
+      this->has_parsed_timezone = true;
       break;
     default:
       return false;

esphome/components/api/api_pb2.h

@@ -1283,13 +1283,13 @@ class ParsedTimezone final : public ProtoDecodableMessage {
 class GetTimeResponse final : public ProtoDecodableMessage {
  public:
   static constexpr uint8_t MESSAGE_TYPE = 37;
-  static constexpr uint8_t ESTIMATED_SIZE = 31;
+  static constexpr uint8_t ESTIMATED_SIZE = 22;
 #ifdef HAS_PROTO_MESSAGE_DUMP
   const LogString *message_name() const override { return LOG_STR("get_time_response"); }
 #endif
   uint32_t epoch_seconds{0};
-  StringRef timezone{};
   ParsedTimezone parsed_timezone{};
+  bool has_parsed_timezone{false};
 #ifdef HAS_PROTO_MESSAGE_DUMP
   const char *dump_to(DumpBuffer &out) const override;
 #endif

esphome/components/api/api_pb2_dump.cpp

@@ -1468,7 +1468,7 @@ const char *ParsedTimezone::dump_to(DumpBuffer &out) const {
 const char *GetTimeResponse::dump_to(DumpBuffer &out) const {
   MessageDumpHelper helper(out, ESPHOME_PSTR("GetTimeResponse"));
   dump_field(out, ESPHOME_PSTR("epoch_seconds"), this->epoch_seconds);
-  dump_field(out, ESPHOME_PSTR("timezone"), this->timezone);
+  dump_field(out, ESPHOME_PSTR("has_parsed_timezone"), this->has_parsed_timezone);
   out.append(2, ' ').append_p(ESPHOME_PSTR("parsed_timezone")).append(": ");
   this->parsed_timezone.dump_to(out);
   out.append("\n");

esphome/components/aqi/sensor.py

@@ -7,6 +7,7 @@ from esphome.const import (
     DEVICE_CLASS_AQI,
     STATE_CLASS_MEASUREMENT,
 )
+from esphome.types import ConfigType
 
 from . import AQI_CALCULATION_TYPE, CONF_CALCULATION_TYPE, CONF_EXTENDED_RANGE, aqi_ns
 
@@ -16,7 +17,7 @@ DEPENDENCIES = ["sensor"]
 AQISensor = aqi_ns.class_("AQISensor", sensor.Sensor, cg.Component)
 
 
-def _validate_extended_range(config):
+def _validate_extended_range(config: ConfigType) -> ConfigType:
     if CONF_EXTENDED_RANGE in config and config[CONF_CALCULATION_TYPE] == "CAQI":
         raise cv.Invalid(
             f"'{CONF_EXTENDED_RANGE}' is not supported with 'calculation_type: CAQI'. "
@@ -48,7 +49,7 @@ CONFIG_SCHEMA = cv.All(
 )
 
 
-async def to_code(config):
+async def to_code(config: ConfigType) -> None:
     var = await sensor.new_sensor(config)
     await cg.register_component(var, config)
 

esphome/components/as3935_i2c/__init__.py

@@ -2,6 +2,7 @@ import esphome.codegen as cg
 from esphome.components import as3935, i2c
 import esphome.config_validation as cv
 from esphome.const import CONF_ID
+from esphome.types import ConfigType
 
 AUTO_LOAD = ["as3935"]
 DEPENDENCIES = ["i2c"]
@@ -20,7 +21,7 @@ CONFIG_SCHEMA = cv.All(
 )
 
 
-async def to_code(config):
+async def to_code(config: ConfigType) -> None:
     var = cg.new_Pvariable(config[CONF_ID])
     await as3935.setup_as3935(var, config)
     await i2c.register_i2c_device(var, config)

esphome/components/as3935_spi/__init__.py

@@ -2,6 +2,7 @@ import esphome.codegen as cg
 from esphome.components import as3935, spi
 import esphome.config_validation as cv
 from esphome.const import CONF_ID
+from esphome.types import ConfigType
 
 AUTO_LOAD = ["as3935"]
 DEPENDENCIES = ["spi"]
@@ -20,7 +21,7 @@ CONFIG_SCHEMA = cv.All(
 )
 
 
-async def to_code(config):
+async def to_code(config: ConfigType) -> None:
     var = cg.new_Pvariable(config[CONF_ID])
     await as3935.setup_as3935(var, config)
     await spi.register_spi_device(var, config)

esphome/components/as7341/sensor.py

@@ -9,6 +9,7 @@ from esphome.const import (
     ICON_BRIGHTNESS_5,
     STATE_CLASS_MEASUREMENT,
 )
+from esphome.types import ConfigType
 
 CODEOWNERS = ["@mrgnr"]
 DEPENDENCIES = ["i2c"]
@@ -96,7 +97,7 @@ SENSORS = {
 }
 
 
-async def to_code(config):
+async def to_code(config: ConfigType) -> None:
     var = cg.new_Pvariable(config[CONF_ID])
     await cg.register_component(var, config)
     await i2c.register_i2c_device(var, config)

esphome/components/async_tcp/__init__.py

@@ -2,6 +2,7 @@
 import esphome.codegen as cg
 import esphome.config_validation as cv
 from esphome.core import CORE, CoroPriority, coroutine_with_priority
+from esphome.types import ConfigType
 
 CODEOWNERS = ["@esphome/core"]
 DEPENDENCIES = ["network"]
@@ -25,7 +26,7 @@ CONFIG_SCHEMA = cv.Schema({})
 
 
 @coroutine_with_priority(CoroPriority.NETWORK_TRANSPORT)
-async def to_code(config):
+async def to_code(config: ConfigType) -> None:
     if CORE.is_esp32:
         # https://github.com/ESP32Async/AsyncTCP
         from esphome.components.esp32 import add_idf_component

esphome/components/atc_mithermometer/sensor.py

@@ -21,6 +21,7 @@ from esphome.const import (
     UNIT_PERCENT,
     UNIT_VOLT,
 )
+from esphome.types import ConfigType
 
 CODEOWNERS = ["@ahpohl"]
 
@@ -77,7 +78,7 @@ CONFIG_SCHEMA = cv.All(
 )
 
 
-async def to_code(config):
+async def to_code(config: ConfigType) -> None:
     var = cg.new_Pvariable(config[CONF_ID])
     await cg.register_component(var, config)
     await ble_device_base.register_ble_device(var, config)

esphome/components/atm90e26/sensor.py

@@ -30,6 +30,7 @@ from esphome.const import (
     UNIT_WATT,
     UNIT_WATT_HOURS,
 )
+from esphome.types import ConfigType
 
 CONF_METER_CONSTANT = "meter_constant"
 CONF_PL_CONST = "pl_const"
@@ -123,7 +124,7 @@ CONFIG_SCHEMA = (
 )
 
 
-async def to_code(config):
+async def to_code(config: ConfigType) -> None:
     var = cg.new_Pvariable(config[CONF_ID])
     await cg.register_component(var, config)
     await spi.register_spi_device(var, config)

esphome/components/axs15231/touchscreen/__init__.py

@@ -3,6 +3,7 @@ import esphome.codegen as cg
 from esphome.components import i2c, touchscreen
 import esphome.config_validation as cv
 from esphome.const import CONF_ID, CONF_INTERRUPT_PIN, CONF_RESET_PIN
+from esphome.types import ConfigType
 
 from .. import axs15231_ns
 
@@ -25,7 +26,7 @@ CONFIG_SCHEMA = (
 )
 
 
-async def to_code(config):
+async def to_code(config: ConfigType) -> None:
     var = cg.new_Pvariable(config[CONF_ID])
     await touchscreen.register_touchscreen(var, config)
     await i2c.register_i2c_device(var, config)

esphome/components/b_parasite/sensor.py

@@ -20,6 +20,7 @@ from esphome.const import (
     UNIT_PERCENT,
     UNIT_VOLT,
 )
+from esphome.types import ConfigType
 
 CODEOWNERS = ["@rbaron"]
 
@@ -74,7 +75,7 @@ CONFIG_SCHEMA = cv.All(
 )
 
 
-async def to_code(config):
+async def to_code(config: ConfigType) -> None:
     var = cg.new_Pvariable(config[CONF_ID])
     await cg.register_component(var, config)
     await ble_device_base.register_ble_device(var, config)

esphome/components/ballu/climate.py

@@ -1,5 +1,6 @@
 import esphome.codegen as cg
 from esphome.components import climate_ir
+from esphome.types import ConfigType
 
 AUTO_LOAD = ["climate_ir"]
 CODEOWNERS = ["@bazuchan"]
@@ -10,5 +11,5 @@ BalluClimate = ballu_ns.class_("BalluClimate", climate_ir.ClimateIR)
 CONFIG_SCHEMA = climate_ir.climate_ir_with_receiver_schema(BalluClimate)
 
 
-async def to_code(config):
+async def to_code(config: ConfigType) -> None:
     await climate_ir.new_climate_ir(config)

esphome/components/bang_bang/climate.py

@@ -12,6 +12,7 @@ from esphome.const import (
     CONF_IDLE_ACTION,
     CONF_SENSOR,
 )
+from esphome.types import ConfigType
 
 bang_bang_ns = cg.esphome_ns.namespace("bang_bang")
 BangBangClimate = bang_bang_ns.class_("BangBangClimate", climate.Climate, cg.Component)
@@ -41,7 +42,7 @@ CONFIG_SCHEMA = cv.All(
 )
 
 
-async def to_code(config):
+async def to_code(config: ConfigType) -> None:
     var = await climate.new_climate(config)
     await cg.register_component(var, config)
 

esphome/components/beken_spi_led_strip/light.py

@@ -56,7 +56,7 @@ SUPPORTED_PINS = {
 }
 
 
-def _validate_pin(value):
+def _validate_pin(value: int) -> int:
     family = libretiny.get_libretiny_family()
     if family not in SUPPORTED_PINS:
         raise cv.Invalid(f"Chip family {family} is not supported.")

esphome/components/bh1750/sensor.py

@@ -2,6 +2,7 @@ import esphome.codegen as cg
 from esphome.components import i2c, sensor
 import esphome.config_validation as cv
 from esphome.const import DEVICE_CLASS_ILLUMINANCE, STATE_CLASS_MEASUREMENT, UNIT_LUX
+from esphome.types import ConfigType
 
 DEPENDENCIES = ["i2c"]
 CODEOWNERS = ["@OttoWinter"]
@@ -25,7 +26,7 @@ CONFIG_SCHEMA = (
 )
 
 
-async def to_code(config):
+async def to_code(config: ConfigType) -> None:
     var = await sensor.new_sensor(config)
     await cg.register_component(var, config)
     await i2c.register_i2c_device(var, config)

esphome/components/bh1900nux/sensor.py

@@ -6,6 +6,7 @@ from esphome.const import (
     STATE_CLASS_MEASUREMENT,
     UNIT_CELSIUS,
 )
+from esphome.types import ConfigType
 
 DEPENDENCIES = ["i2c"]
 CODEOWNERS = ["@B48D81EFCC"]
@@ -28,7 +29,7 @@ CONFIG_SCHEMA = (
 )
 
 
-async def to_code(config):
+async def to_code(config: ConfigType) -> None:
     var = await sensor.new_sensor(config)
     await cg.register_component(var, config)
     await i2c.register_i2c_device(var, config)

esphome/components/binary/fan/__init__.py

@@ -2,6 +2,7 @@ import esphome.codegen as cg
 from esphome.components import fan, output
 import esphome.config_validation as cv
 from esphome.const import CONF_DIRECTION_OUTPUT, CONF_OSCILLATION_OUTPUT, CONF_OUTPUT
+from esphome.types import ConfigType
 
 from .. import binary_ns
 
@@ -20,7 +21,7 @@ CONFIG_SCHEMA = (
 )
 
 
-async def to_code(config):
+async def to_code(config: ConfigType) -> None:
     var = await fan.new_fan(config)
     await cg.register_component(var, config)
 

esphome/components/binary/light/__init__.py

@@ -2,6 +2,7 @@ import esphome.codegen as cg
 from esphome.components import light, output
 import esphome.config_validation as cv
 from esphome.const import CONF_OUTPUT, CONF_OUTPUT_ID
+from esphome.types import ConfigType
 
 from .. import binary_ns
 
@@ -15,7 +16,7 @@ CONFIG_SCHEMA = light.BINARY_LIGHT_SCHEMA.extend(
 )
 
 
-async def to_code(config):
+async def to_code(config: ConfigType) -> None:
     var = cg.new_Pvariable(config[CONF_OUTPUT_ID])
     await light.register_light(var, config)
 

esphome/components/binary_sensor_map/sensor.py

@@ -10,6 +10,7 @@ from esphome.const import (
     CONF_VALUE,
     ICON_CHECK_CIRCLE_OUTLINE,
 )
+from esphome.types import ConfigType
 
 DEPENDENCIES = ["binary_sensor"]
 
@@ -82,7 +83,7 @@ CONFIG_SCHEMA = cv.typed_schema(
 )
 
 
-async def to_code(config):
+async def to_code(config: ConfigType) -> None:
     var = await sensor.new_sensor(config)
     await cg.register_component(var, config)
 

esphome/components/bk72xx/__init__.py

@@ -28,6 +28,8 @@ from esphome.components.libretiny.const import (
     LibreTinyComponent,
 )
 from esphome.core import CORE
+from esphome.cpp_generator import MockObj
+from esphome.types import ConfigType
 
 from .boards import BK72XX_BOARD_PINS, BK72XX_BOARDS
 
@@ -45,7 +47,7 @@ COMPONENT_DATA = LibreTinyComponent(
 )
 
 
-def _set_core_data(config):
+def _set_core_data(config: ConfigType) -> ConfigType:
     CORE.data[KEY_LIBRETINY] = {}
     CORE.data[KEY_LIBRETINY][KEY_COMPONENT_DATA] = COMPONENT_DATA
     return config
@@ -62,12 +64,12 @@ PIN_SCHEMA = libretiny.gpio.BASE_PIN_SCHEMA
 CONFIG_SCHEMA.prepend_extra(_set_core_data)
 
 
-async def to_code(config):
+async def to_code(config: ConfigType) -> MockObj:
     return await libretiny.component_to_code(config)
 
 
 @pins.PIN_SCHEMA_REGISTRY.register("bk72xx", PIN_SCHEMA)
-async def pin_to_code(config):
+async def pin_to_code(config: ConfigType) -> MockObj:
     return await libretiny.gpio.component_pin_to_code(config)
 
 

esphome/components/bl0939/sensor.py

@@ -15,6 +15,7 @@ from esphome.const import (
     UNIT_VOLT,
     UNIT_WATT,
 )
+from esphome.types import ConfigType
 
 DEPENDENCIES = ["uart"]
 
@@ -88,7 +89,7 @@ CONFIG_SCHEMA = (
 )
 
 
-async def to_code(config):
+async def to_code(config: ConfigType) -> None:
     var = cg.new_Pvariable(config[CONF_ID])
     await cg.register_component(var, config)
     await uart.register_uart_device(var, config)

esphome/components/bl0942/sensor.py

@@ -24,6 +24,7 @@ from esphome.const import (
     UNIT_VOLT,
     UNIT_WATT,
 )
+from esphome.types import ConfigType
 
 CONF_CURRENT_REFERENCE = "current_reference"
 CONF_ENERGY_REFERENCE = "energy_reference"
@@ -95,7 +96,7 @@ CONFIG_SCHEMA = (
 )
 
 
-async def to_code(config):
+async def to_code(config: ConfigType) -> None:
     var = cg.new_Pvariable(config[CONF_ID])
     await cg.register_component(var, config)
     await uart.register_uart_device(var, config)

esphome/components/ble_device_base/automation.py

@@ -1,5 +1,6 @@
 """Shared codegen for the neutral BLE advertisement triggers (automation.h)."""
 
+from collections.abc import Callable
 from typing import Any
 
 from esphome import automation
@@ -52,7 +53,7 @@ _UUID_WIDTHS = {
 
 def uuid_trigger_schema(
     trigger_class: MockObjClass, extra: dict[Any, Any] | None = None
-):
+) -> Callable[[Any], Any]:
     """Schema for a UUID-filtered trigger — pairs with uuid_trigger_to_code().
 
     `extra` carries the required UUID key (a cv marker, so a dict rather than
@@ -68,7 +69,7 @@ def uuid_trigger_schema(
     )
 
 
-def advertise_trigger_schema(trigger_class: MockObjClass):
+def advertise_trigger_schema(trigger_class: MockObjClass) -> Callable[[Any], Any]:
     """on_ble_advertise schema: multi-mac list filter, unlike the single-mac
     uuid_trigger_schema() — pairs with advertise_trigger_to_code()."""
     return automation.validate_automation(
@@ -79,7 +80,7 @@ def advertise_trigger_schema(trigger_class: MockObjClass):
     )
 
 
-def scan_end_trigger_schema(trigger_class: MockObjClass):
+def scan_end_trigger_schema(trigger_class: MockObjClass) -> Callable[[Any], Any]:
     """on_scan_end schema: id only — pairs with scan_end_trigger_to_code()."""
     return automation.validate_automation(
         {cv.GenerateID(CONF_TRIGGER_ID): cv.declare_id(trigger_class)}

esphome/components/ble_presence/binary_sensor.py

@@ -10,6 +10,7 @@ from esphome.const import (
     CONF_SERVICE_UUID,
     CONF_TIMEOUT,
 )
+from esphome.types import ConfigType
 
 CONF_IRK = "irk"
 
@@ -24,7 +25,7 @@ BLEPresenceDevice = ble_presence_ns.class_(
 )
 
 
-def _validate(config):
+def _validate(config: ConfigType) -> ConfigType:
     if CONF_IBEACON_MAJOR in config and CONF_IBEACON_UUID not in config:
         raise cv.Invalid("iBeacon major identifier requires iBeacon UUID")
     if CONF_IBEACON_MINOR in config and CONF_IBEACON_UUID not in config:
@@ -58,7 +59,7 @@ CONFIG_SCHEMA = cv.All(
 )
 
 
-async def to_code(config):
+async def to_code(config: ConfigType) -> None:
     var = await binary_sensor.new_binary_sensor(config)
     await cg.register_component(var, config)
     await ble_device_base.register_ble_device(var, config)

esphome/components/ble_rssi/sensor.py

@@ -11,6 +11,7 @@ from esphome.const import (
     STATE_CLASS_MEASUREMENT,
     UNIT_DECIBEL_MILLIWATT,
 )
+from esphome.types import ConfigType
 
 CONF_IRK = "irk"
 
@@ -22,7 +23,7 @@ BLERSSISensor = ble_rssi_ns.class_(
 )
 
 
-def _validate(config):
+def _validate(config: ConfigType) -> ConfigType:
     if CONF_IBEACON_MAJOR in config and CONF_IBEACON_UUID not in config:
         raise cv.Invalid("iBeacon major identifier requires iBeacon UUID")
     if CONF_IBEACON_MINOR in config and CONF_IBEACON_UUID not in config:
@@ -58,7 +59,7 @@ CONFIG_SCHEMA = cv.All(
 )
 
 
-async def to_code(config):
+async def to_code(config: ConfigType) -> None:
     var = await sensor.new_sensor(config)
     await cg.register_component(var, config)
     await ble_device_base.register_ble_device(var, config)

esphome/components/ble_scanner/text_sensor.py

@@ -1,6 +1,7 @@
 import esphome.codegen as cg
 from esphome.components import ble_device_base, text_sensor
 import esphome.config_validation as cv
+from esphome.types import ConfigType
 
 AUTO_LOAD = ["ble_device_base"]
 
@@ -20,7 +21,7 @@ CONFIG_SCHEMA = cv.All(
 )
 
 
-async def to_code(config):
+async def to_code(config: ConfigType) -> None:
     var = await text_sensor.new_text_sensor(config)
     await cg.register_component(var, config)
     await ble_device_base.register_ble_device(var, config)

esphome/components/bluetooth_connection/bluetooth_connection_hub.cpp

@@ -275,10 +275,15 @@ void BluetoothConnection::send_ack_(PendingAck kind, uint16_t handle, conn_err_t
   if (this->try_send_ack_(kind, handle, error))
     return;
   // Report a newly owed reply and a displaced one; displacing is the case
-  // that loses a reply. Re-refusing the same one stays quiet.
+  // that loses a reply. Re-refusing the same one stays quiet, and so does a
+  // fresh deferral for the handle already warned about: a congested bulk
+  // transfer re-asks the same handle every cycle and each ack would warn.
   if (!this->has_pending_ack_()) {
-    ESP_LOGW(TAG, "[%d] [%s] GATT reply for handle 0x%04X deferred, TCP buffer full", this->connection_index_,
-             this->address_str_, handle);
+    if (!this->ack_deferred_warned_ || this->pending_ack_handle_ != handle) {
+      ESP_LOGW(TAG, "[%d] [%s] GATT reply for handle 0x%04X deferred, TCP buffer full", this->connection_index_,
+               this->address_str_, handle);
+      this->ack_deferred_warned_ = true;
+    }
   } else if (this->pending_ack_handle_ != handle || this->pending_ack_ != kind) {
     ESP_LOGW(TAG, "[%d] [%s] GATT reply for handle 0x%04X dropped for handle 0x%04X", this->connection_index_,
              this->address_str_, this->pending_ack_handle_, handle);
@@ -365,8 +370,16 @@ void BluetoothConnection::on_notify_data(uint16_t handle, const uint8_t *data, u
   resp.set_data(data, len);
   if (!api_connection->send_message(resp)) {
     // Not latched, same reason as the read reply. Notify data is lossy: the
-    // peripheral will not resend it.
-    ESP_LOGW(TAG, "[%d] [%s] Failed to send notify data response", this->connection_index_, this->address_str_);
+    // peripheral will not resend it. Warn on the first drop only; a congested
+    // link drops a whole stream and one line per notify floods the log.
+    if (!this->notify_drop_warned_) {
+      ESP_LOGW(TAG, "[%d] [%s] Failed to send notify data response, handle 0x%04X", this->connection_index_,
+               this->address_str_, handle);
+      this->notify_drop_warned_ = true;
+    } else {
+      ESP_LOGV(TAG, "[%d] [%s] Failed to send notify data response, handle 0x%04X", this->connection_index_,
+               this->address_str_, handle);
+    }
   }
 }
 

esphome/components/bluetooth_connection/bluetooth_connection_hub.h

@@ -164,6 +164,8 @@ class BluetoothConnection final : public ble_device_base::GattClientListener {
     this->pending_ack_ = PendingAck::PENDING_ACK_NONE;
     this->batch_stalled_ = false;
     this->connected_reply_owed_ = false;
+    this->ack_deferred_warned_ = false;
+    this->notify_drop_warned_ = false;
   }
   /// Sole construction site for these replies, shared by send and retry.
   bool try_send_ack_(PendingAck kind, uint16_t handle, conn_err_t error);
@@ -238,7 +240,7 @@ class BluetoothConnection final : public ble_device_base::GattClientListener {
 
   // Group 5: bit-packed tail. The first two bytes were already full, so the
   // first added bit forced a third and took the 8-aligned object 48 -> 56;
-  // the handle, error and retry counter ride in that padding. Four bitfield
+  // the handle, error and retry counter ride in that padding. Two bitfield
   // bits left; another byte-sized member costs 8 per slot.
   static_assert(static_cast<uint8_t>(ClientState::ESTABLISHED) < (1 << 3), "state_ bitfield too narrow");
   static_assert(static_cast<uint8_t>(ConnectionType::V3_WITHOUT_CACHE) < (1 << 2),
@@ -258,6 +260,11 @@ class BluetoothConnection final : public ble_device_base::GattClientListener {
   bool batch_stalled_ : 1 {false};
   /// An owed connected=true reply; the proxy's paced drain re-offers it.
   bool connected_reply_owed_ : 1 {false};
+  /// Set once the deferred warn fired; with an unchanged pending_ack_handle_
+  /// it keeps re-deferrals of the same handle quiet (see send_ack_).
+  bool ack_deferred_warned_ : 1 {false};
+  /// Set on the first dropped notify; later drops log at verbose only.
+  bool notify_drop_warned_ : 1 {false};
   // Plain byte after the bitfields: takes the padding byte instead of
   // straddling pending_ack_'s storage unit and growing the object.
   static_assert(PENDING_ACK_RETRY_LIMIT <= 0xFF, "retry counter too narrow");

esphome/components/bluetooth_proxy/__init__.py

@@ -92,7 +92,7 @@ def _esp32_config_schema() -> cv.All:
 
     CONNECTION_SCHEMA = bluetooth_connection.hub_connection_schema(PLATFORM_ESP32)
 
-    def validate_connections(config):
+    def validate_connections(config: ConfigType) -> ConfigType:
         if CONF_CONNECTIONS in config:
             if not config[CONF_ACTIVE]:
                 raise cv.Invalid(

esphome/components/bme280_base/__init__.py

@@ -16,6 +16,8 @@ from esphome.const import (
     UNIT_HECTOPASCAL,
     UNIT_PERCENT,
 )
+from esphome.cpp_generator import MockObj
+from esphome.types import ConfigType
 
 CODEOWNERS = ["@esphome/core"]
 
@@ -84,7 +86,7 @@ CONFIG_SCHEMA_BASE = cv.Schema(
 ).extend(cv.polling_component_schema("60s"))
 
 
-async def to_code_base(config):
+async def to_code_base(config: ConfigType) -> MockObj:
     var = cg.new_Pvariable(config[CONF_ID])
     await cg.register_component(var, config)
 

esphome/components/bme280_i2c/sensor.py

@@ -1,6 +1,7 @@
 import esphome.codegen as cg
 from esphome.components import i2c
 import esphome.config_validation as cv
+from esphome.types import ConfigType
 
 from ..bme280_base import CONFIG_SCHEMA_BASE, to_code_base
 
@@ -17,6 +18,6 @@ CONFIG_SCHEMA = CONFIG_SCHEMA_BASE.extend(
 ).extend({cv.GenerateID(): cv.declare_id(BME280I2CComponent)})
 
 
-async def to_code(config):
+async def to_code(config: ConfigType) -> None:
     var = await to_code_base(config)
     await i2c.register_i2c_device(var, config)

esphome/components/bme280_spi/sensor.py

@@ -1,6 +1,7 @@
 import esphome.codegen as cg
 from esphome.components import spi
 import esphome.config_validation as cv
+from esphome.types import ConfigType
 
 from ..bme280_base import CONFIG_SCHEMA_BASE, to_code_base
 
@@ -19,6 +20,6 @@ CONFIG_SCHEMA = CONFIG_SCHEMA_BASE.extend(spi.spi_device_schema()).extend(
 )
 
 
-async def to_code(config):
+async def to_code(config: ConfigType) -> None:
     var = await to_code_base(config)
     await spi.register_spi_device(var, config)

esphome/components/bme680/sensor.py

@@ -22,6 +22,7 @@ from esphome.const import (
     UNIT_OHM,
     UNIT_PERCENT,
 )
+from esphome.types import ConfigType
 
 DEPENDENCIES = ["i2c"]
 
@@ -125,7 +126,7 @@ CONFIG_SCHEMA = (
 )
 
 
-async def to_code(config):
+async def to_code(config: ConfigType) -> None:
     var = cg.new_Pvariable(config[CONF_ID])
     await cg.register_component(var, config)
     await i2c.register_i2c_device(var, config)

esphome/components/bme68x_bsec2_i2c/__init__.py

@@ -6,6 +6,7 @@ from esphome.components.bme68x_bsec2 import (
     to_code_base,
 )
 import esphome.config_validation as cv
+from esphome.types import ConfigType
 
 CODEOWNERS = ["@neffs", "@kbx81"]
 
@@ -29,6 +30,6 @@ CONFIG_SCHEMA = CONFIG_SCHEMA_BASE.extend(
 ).extend(i2c.i2c_device_schema(0x76))
 
 
-async def to_code(config):
+async def to_code(config: ConfigType) -> None:
     var = await to_code_base(config)
     await i2c.register_i2c_device(var, config)

esphome/components/bmi160/sensor.py

@@ -22,6 +22,7 @@ from esphome.const import (
     UNIT_DEGREE_PER_SECOND,
     UNIT_METER_PER_SECOND_SQUARED,
 )
+from esphome.types import ConfigType
 
 DEPENDENCIES = ["i2c"]
 
@@ -82,7 +83,7 @@ CONFIG_SCHEMA = (
 )
 
 
-async def to_code(config):
+async def to_code(config: ConfigType) -> None:
     var = cg.new_Pvariable(config[CONF_ID])
     await cg.register_component(var, config)
     await i2c.register_i2c_device(var, config)

esphome/components/bmi270/motion.py

@@ -8,6 +8,7 @@ from esphome.components.const import (
 )
 from esphome.components.motion import motion_schema, new_motion_component
 import esphome.config_validation as cv
+from esphome.types import ConfigType
 
 from . import BMI270Component, bmi270_ns
 
@@ -79,7 +80,7 @@ CONFIG_SCHEMA = (
 
 
 #  Code generation
-async def to_code(config):
+async def to_code(config: ConfigType) -> None:
     var = await new_motion_component(config)
     await i2c.register_i2c_device(var, config)
 

esphome/components/bmi270/sensor.py

@@ -11,6 +11,7 @@ from esphome.const import (
     UNIT_CELSIUS,
 )
 from esphome.cpp_generator import MockObj
+from esphome.types import ConfigType
 
 from . import CONF_BMI270_ID, BMI270Component
 
@@ -30,7 +31,7 @@ CONFIG_SCHEMA = sensor.sensor_schema(
 )
 
 
-async def to_code(config):
+async def to_code(config: ConfigType) -> None:
     var = await sensor.new_sensor(config)
     parent = await cg.get_variable(config[CONF_BMI270_ID])
     data = MockObj("data")

esphome/components/bmp085/sensor.py

@@ -11,6 +11,7 @@ from esphome.const import (
     UNIT_CELSIUS,
     UNIT_HECTOPASCAL,
 )
+from esphome.types import ConfigType
 
 DEPENDENCIES = ["i2c"]
 
@@ -42,7 +43,7 @@ CONFIG_SCHEMA = (
 )
 
 
-async def to_code(config):
+async def to_code(config: ConfigType) -> None:
     var = cg.new_Pvariable(config[CONF_ID])
     await cg.register_component(var, config)
     await i2c.register_i2c_device(var, config)

esphome/components/bmp280_base/__init__.py

@@ -13,6 +13,8 @@ from esphome.const import (
     UNIT_CELSIUS,
     UNIT_HECTOPASCAL,
 )
+from esphome.cpp_generator import MockObj
+from esphome.types import ConfigType
 
 CODEOWNERS = ["@ademuri"]
 
@@ -69,7 +71,7 @@ CONFIG_SCHEMA_BASE = cv.Schema(
 ).extend(cv.polling_component_schema("60s"))
 
 
-async def to_code_base(config):
+async def to_code_base(config: ConfigType) -> MockObj:
     var = cg.new_Pvariable(config[CONF_ID])
     await cg.register_component(var, config)
 

esphome/components/bmp280_i2c/sensor.py

@@ -1,6 +1,7 @@
 import esphome.codegen as cg
 from esphome.components import i2c
 import esphome.config_validation as cv
+from esphome.types import ConfigType
 
 from ..bmp280_base import CONFIG_SCHEMA_BASE, to_code_base
 
@@ -18,6 +19,6 @@ CONFIG_SCHEMA = CONFIG_SCHEMA_BASE.extend(
 ).extend({cv.GenerateID(): cv.declare_id(BMP280I2CComponent)})
 
 
-async def to_code(config):
+async def to_code(config: ConfigType) -> None:
     var = await to_code_base(config)
     await i2c.register_i2c_device(var, config)

esphome/components/bmp280_spi/sensor.py

@@ -1,6 +1,7 @@
 import esphome.codegen as cg
 from esphome.components import spi
 import esphome.config_validation as cv
+from esphome.types import ConfigType
 
 from ..bmp280_base import CONFIG_SCHEMA_BASE, to_code_base
 
@@ -18,6 +19,6 @@ CONFIG_SCHEMA = CONFIG_SCHEMA_BASE.extend(
 ).extend({cv.GenerateID(): cv.declare_id(BMP280SPIComponent)})
 
 
-async def to_code(config):
+async def to_code(config: ConfigType) -> None:
     var = await to_code_base(config)
     await spi.register_spi_device(var, config)

esphome/components/bmp3xx_base/__init__.py

@@ -13,6 +13,8 @@ from esphome.const import (
     UNIT_CELSIUS,
     UNIT_HECTOPASCAL,
 )
+from esphome.cpp_generator import MockObj
+from esphome.types import ConfigType
 
 CODEOWNERS = ["@martgras", "@latonita"]
 
@@ -73,7 +75,7 @@ CONFIG_SCHEMA_BASE = cv.Schema(
 ).extend(cv.polling_component_schema("60s"))
 
 
-async def to_code_base(config):
+async def to_code_base(config: ConfigType) -> MockObj:
     var = cg.new_Pvariable(config[CONF_ID])
     await cg.register_component(var, config)
 

esphome/components/bmp3xx_i2c/sensor.py

@@ -1,5 +1,6 @@
 import esphome.codegen as cg
 from esphome.components import i2c
+from esphome.types import ConfigType
 
 from ..bmp3xx_base import CONFIG_SCHEMA_BASE, cv, to_code_base
 
@@ -18,6 +19,6 @@ CONFIG_SCHEMA = CONFIG_SCHEMA_BASE.extend(
 ).extend({cv.GenerateID(): cv.declare_id(BMP3XXI2CComponent)})
 
 
-async def to_code(config):
+async def to_code(config: ConfigType) -> None:
     var = await to_code_base(config)
     await i2c.register_i2c_device(var, config)

esphome/components/bmp3xx_spi/sensor.py

@@ -1,5 +1,6 @@
 import esphome.codegen as cg
 from esphome.components import spi
+from esphome.types import ConfigType
 
 from ..bmp3xx_base import CONFIG_SCHEMA_BASE, cv, to_code_base
 
@@ -18,6 +19,6 @@ CONFIG_SCHEMA = CONFIG_SCHEMA_BASE.extend(spi.spi_device_schema()).extend(
 )
 
 
-async def to_code(config):
+async def to_code(config: ConfigType) -> None:
     var = await to_code_base(config)
     await spi.register_spi_device(var, config)

esphome/components/bmp581_base/__init__.py

@@ -15,6 +15,8 @@ from esphome.const import (
     UNIT_CELSIUS,
     UNIT_PASCAL,
 )
+from esphome.cpp_generator import MockObj
+from esphome.types import ConfigType
 
 CODEOWNERS = ["@kahrendt", "@danielkent-net"]
 
@@ -47,7 +49,7 @@ IIR_FILTER_OPTIONS = {
 BMP581Component = bmp581_ns.class_("BMP581Component", cg.PollingComponent)
 
 
-def compute_measurement_conversion_time(config):
+def compute_measurement_conversion_time(config: ConfigType) -> int:
     # - adds up sensor conversion time based on temperature and pressure oversampling rates given in datasheet
     # - returns a rounded up time in ms
 
@@ -132,7 +134,7 @@ CONFIG_SCHEMA_BASE = cv.Schema(
 ).extend(cv.polling_component_schema("60s"))
 
 
-async def to_code_base(config):
+async def to_code_base(config: ConfigType) -> MockObj:
     var = cg.new_Pvariable(config[CONF_ID])
     await cg.register_component(var, config)
     if temperature_config := config.get(CONF_TEMPERATURE):

esphome/components/bmp581_i2c/sensor.py

@@ -1,6 +1,7 @@
 import esphome.codegen as cg
 from esphome.components import i2c
 import esphome.config_validation as cv
+from esphome.types import ConfigType
 
 from ..bmp581_base import CONFIG_SCHEMA_BASE, to_code_base
 
@@ -18,6 +19,6 @@ CONFIG_SCHEMA = CONFIG_SCHEMA_BASE.extend(
 ).extend({cv.GenerateID(): cv.declare_id(BMP581I2CComponent)})
 
 
-async def to_code(config):
+async def to_code(config: ConfigType) -> None:
     var = await to_code_base(config)
     await i2c.register_i2c_device(var, config)

esphome/components/bmp581_spi/sensor.py

@@ -4,6 +4,7 @@ import esphome.codegen as cg
 from esphome.components import spi
 from esphome.components.spi import CONF_SPI_MODE
 import esphome.config_validation as cv
+from esphome.types import ConfigType
 
 from ..bmp581_base import CONFIG_SCHEMA_BASE, to_code_base
 
@@ -28,7 +29,7 @@ BMP581SPIComponent = bmp581_ns.class_(
 )
 
 
-def check_spi_mode(config):
+def check_spi_mode(config: ConfigType) -> ConfigType:
     spi_mode = config.get(CONF_SPI_MODE)
     if spi_mode not in VALID_SPI_MODES:
         raise cv.Invalid("BMP581 only supports SPI mode 0 or mode 3")
@@ -43,6 +44,6 @@ CONFIG_SCHEMA = cv.All(
 )
 
 
-async def to_code(config):
+async def to_code(config: ConfigType) -> None:
     var = await to_code_base(config)
     await spi.register_spi_device(var, config)

esphome/components/bp1658cj/__init__.py

@@ -2,6 +2,7 @@ from esphome import pins
 import esphome.codegen as cg
 import esphome.config_validation as cv
 from esphome.const import CONF_CLOCK_PIN, CONF_DATA_PIN, CONF_ID
+from esphome.types import ConfigType
 
 CODEOWNERS = ["@Cossid"]
 MULTI_CONF = True
@@ -28,7 +29,7 @@ CONFIG_SCHEMA = cv.Schema(
 ).extend(cv.COMPONENT_SCHEMA)
 
 
-async def to_code(config):
+async def to_code(config: ConfigType) -> None:
     var = cg.new_Pvariable(config[CONF_ID])
     await cg.register_component(var, config)
 

esphome/components/bp1658cj/output.py

@@ -2,6 +2,7 @@ import esphome.codegen as cg
 from esphome.components import output
 import esphome.config_validation as cv
 from esphome.const import CONF_CHANNEL, CONF_ID
+from esphome.types import ConfigType
 
 from . import BP1658CJ
 
@@ -19,7 +20,7 @@ CONFIG_SCHEMA = output.FLOAT_OUTPUT_SCHEMA.extend(
 ).extend(cv.COMPONENT_SCHEMA)
 
 
-async def to_code(config):
+async def to_code(config: ConfigType) -> None:
     var = cg.new_Pvariable(config[CONF_ID])
     await output.register_output(var, config)
 

esphome/components/bp5758d/__init__.py

@@ -2,6 +2,7 @@ from esphome import pins
 import esphome.codegen as cg
 import esphome.config_validation as cv
 from esphome.const import CONF_CLOCK_PIN, CONF_DATA_PIN, CONF_ID
+from esphome.types import ConfigType
 
 CODEOWNERS = ["@Cossid"]
 MULTI_CONF = True
@@ -19,7 +20,7 @@ CONFIG_SCHEMA = cv.Schema(
 ).extend(cv.COMPONENT_SCHEMA)
 
 
-async def to_code(config):
+async def to_code(config: ConfigType) -> None:
     var = cg.new_Pvariable(config[CONF_ID])
     await cg.register_component(var, config)
 

esphome/components/bp5758d/output.py

@@ -2,6 +2,7 @@ import esphome.codegen as cg
 from esphome.components import output
 import esphome.config_validation as cv
 from esphome.const import CONF_CHANNEL, CONF_CURRENT, CONF_ID
+from esphome.types import ConfigType
 
 from . import BP5758D
 
@@ -20,7 +21,7 @@ CONFIG_SCHEMA = output.FLOAT_OUTPUT_SCHEMA.extend(
 ).extend(cv.COMPONENT_SCHEMA)
 
 
-async def to_code(config):
+async def to_code(config: ConfigType) -> None:
     var = cg.new_Pvariable(config[CONF_ID])
     await output.register_output(var, config)
 

esphome/components/cap1188/__init__.py

@@ -3,6 +3,7 @@ import esphome.codegen as cg
 from esphome.components import i2c
 import esphome.config_validation as cv
 from esphome.const import CONF_ID, CONF_RESET_PIN
+from esphome.types import ConfigType
 
 CONF_TOUCH_THRESHOLD = "touch_threshold"
 CONF_ALLOW_MULTIPLE_TOUCHES = "allow_multiple_touches"
@@ -32,7 +33,7 @@ CONFIG_SCHEMA = (
 )
 
 
-async def to_code(config):
+async def to_code(config: ConfigType) -> None:
     var = cg.new_Pvariable(config[CONF_ID])
     cg.add(var.set_touch_threshold(config[CONF_TOUCH_THRESHOLD]))
     cg.add(var.set_allow_multiple_touches(config[CONF_ALLOW_MULTIPLE_TOUCHES]))

esphome/components/cap1188/binary_sensor.py

@@ -2,6 +2,7 @@ import esphome.codegen as cg
 from esphome.components import binary_sensor
 import esphome.config_validation as cv
 from esphome.const import CONF_CHANNEL
+from esphome.types import ConfigType
 
 from . import CONF_CAP1188_ID, CAP1188Component, cap1188_ns
 
@@ -16,7 +17,7 @@ CONFIG_SCHEMA = binary_sensor.binary_sensor_schema(CAP1188Channel).extend(
 )
 
 
-async def to_code(config):
+async def to_code(config: ConfigType) -> None:
     var = await binary_sensor.new_binary_sensor(config)
     hub = await cg.get_variable(config[CONF_CAP1188_ID])
     cg.add(var.set_channel(config[CONF_CHANNEL]))

esphome/components/captive_portal/__init__.py

@@ -93,7 +93,7 @@ FINAL_VALIDATE_SCHEMA = _final_validate
 
 
 @coroutine_with_priority(CoroPriority.CAPTIVE_PORTAL)
-async def to_code(config):
+async def to_code(config: ConfigType) -> None:
     paren = await cg.get_variable(config[CONF_WEB_SERVER_BASE_ID])
 
     var = cg.new_Pvariable(config[CONF_ID], paren)

esphome/components/captive_portal/captive_portal.cpp

@@ -4,9 +4,9 @@
 #include "esphome/core/application.h"
 #include "esphome/core/helpers.h"
 #include "esphome/core/string_ref.h"
+#include "esphome/components/wifi/scan_list.h"
 #include "esphome/components/wifi/wifi_component.h"
 #include "captive_index.h"
-#include "scan_list.h"
 
 namespace esphome::captive_portal {
 
@@ -37,7 +37,7 @@ void CaptivePortal::handle_config(AsyncWebServerRequest *request) {
     const auto &results = wifi::global_wifi_component->get_scan_result();
     for (const auto &scan : results) {
       bool with_auth = false;
-      if (!should_show_scan_entry(results, scan, with_auth))
+      if (!wifi::should_show_scan_entry(results, scan, with_auth))
         continue;
 
       json_escape_into_buffer(escaped_ssid, scan.get_ssid());

esphome/components/ccs811/sensor.py

@@ -18,6 +18,7 @@ from esphome.const import (
     UNIT_PARTS_PER_BILLION,
     UNIT_PARTS_PER_MILLION,
 )
+from esphome.types import ConfigType
 
 AUTO_LOAD = ["text_sensor"]
 CODEOWNERS = ["@habbie"]
@@ -59,7 +60,7 @@ CONFIG_SCHEMA = (
 )
 
 
-async def to_code(config):
+async def to_code(config: ConfigType) -> None:
     var = cg.new_Pvariable(config[CONF_ID])
     await cg.register_component(var, config)
     await i2c.register_i2c_device(var, config)

esphome/components/cd74hc4067/__init__.py

@@ -2,6 +2,7 @@ from esphome import pins
 import esphome.codegen as cg
 import esphome.config_validation as cv
 from esphome.const import CONF_DELAY, CONF_ID
+from esphome.types import ConfigType
 
 AUTO_LOAD = ["sensor", "voltage_sampler"]
 CODEOWNERS = ["@asoehlke"]
@@ -33,7 +34,7 @@ CONFIG_SCHEMA = cv.Schema(
 ).extend(cv.COMPONENT_SCHEMA)
 
 
-async def to_code(config):
+async def to_code(config: ConfigType) -> None:
     var = cg.new_Pvariable(config[CONF_ID])
     await cg.register_component(var, config)
 

esphome/components/cd74hc4067/sensor.py

@@ -10,6 +10,7 @@ from esphome.const import (
     STATE_CLASS_MEASUREMENT,
     UNIT_VOLT,
 )
+from esphome.types import ConfigType
 
 from . import CD74HC4067Component, cd74hc4067_ns
 
@@ -44,7 +45,7 @@ CONFIG_SCHEMA = (
 )
 
 
-async def to_code(config):
+async def to_code(config: ConfigType) -> None:
     parent = await cg.get_variable(config[CONF_CD74HC4067_ID])
 
     var = cg.new_Pvariable(config[CONF_ID], parent)

esphome/components/ch422g/__init__.py

@@ -13,6 +13,8 @@ from esphome.const import (
     CONF_OPEN_DRAIN,
     CONF_OUTPUT,
 )
+from esphome.cpp_generator import MockObj
+from esphome.types import ConfigType
 
 CODEOWNERS = ["@jesterret", "@clydebarrow"]
 DEPENDENCIES = ["i2c"]
@@ -35,7 +37,7 @@ CONFIG_SCHEMA = cv.Schema(
 ).extend(cv.COMPONENT_SCHEMA)
 
 
-async def to_code(config):
+async def to_code(config: ConfigType) -> None:
     var = cg.new_Pvariable(config[CONF_ID])
     await cg.register_component(var, config)
     # Can't use register_i2c_device because there is no CONF_ADDRESS
@@ -44,7 +46,7 @@ async def to_code(config):
 
 
 # This is used as a final validation step so that modes have been fully transformed.
-def pin_mode_check(pin_config, _):
+def pin_mode_check(pin_config: ConfigType, _: ConfigType) -> None:
     if pin_config[CONF_MODE][CONF_INPUT] and pin_config[CONF_NUMBER] >= 8:
         raise cv.Invalid("CH422G only supports input on pins 0-7")
     if pin_config[CONF_MODE][CONF_OPEN_DRAIN] and pin_config[CONF_NUMBER] < 8:
@@ -63,7 +65,7 @@ CH422G_PIN_SCHEMA = pins.gpio_base_schema(
 
 
 @pins.PIN_SCHEMA_REGISTRY.register(CONF_CH422G, CH422G_PIN_SCHEMA, pin_mode_check)
-async def ch422g_pin_to_code(config):
+async def ch422g_pin_to_code(config: ConfigType) -> MockObj:
     var = cg.new_Pvariable(config[CONF_ID])
     parent = await cg.get_variable(config[CONF_CH422G])
 

esphome/components/ch423/__init__.py

@@ -14,6 +14,8 @@ from esphome.const import (
     CONF_OUTPUT,
 )
 from esphome.core import CORE
+from esphome.cpp_generator import MockObj
+from esphome.types import ConfigType
 
 CODEOWNERS = ["@dwmw2"]
 DEPENDENCIES = ["i2c"]
@@ -36,7 +38,7 @@ CONFIG_SCHEMA = cv.Schema(
 ).extend(cv.COMPONENT_SCHEMA)
 
 
-async def to_code(config):
+async def to_code(config: ConfigType) -> None:
     var = cg.new_Pvariable(config[CONF_ID])
     await cg.register_component(var, config)
     # Can't use register_i2c_device because there is no CONF_ADDRESS
@@ -45,7 +47,7 @@ async def to_code(config):
 
 
 # This is used as a final validation step so that modes have been fully transformed.
-def pin_mode_check(pin_config, _):
+def pin_mode_check(pin_config: ConfigType, _: ConfigType) -> None:
     if pin_config[CONF_MODE][CONF_INPUT] and pin_config[CONF_NUMBER] >= 8:
         raise cv.Invalid("CH423 only supports input on pins 0-7")
     if pin_config[CONF_MODE][CONF_OPEN_DRAIN] and pin_config[CONF_NUMBER] < 8:
@@ -90,7 +92,7 @@ CH423_PIN_SCHEMA = pins.gpio_base_schema(
 
 
 @pins.PIN_SCHEMA_REGISTRY.register(CONF_CH423, CH423_PIN_SCHEMA, pin_mode_check)
-async def ch423_pin_to_code(config):
+async def ch423_pin_to_code(config: ConfigType) -> MockObj:
     var = cg.new_Pvariable(config[CONF_ID])
     parent = await cg.get_variable(config[CONF_CH423])
 

esphome/components/chsc6x/touchscreen.py

@@ -3,6 +3,7 @@ import esphome.codegen as cg
 from esphome.components import i2c, touchscreen
 import esphome.config_validation as cv
 from esphome.const import CONF_ID, CONF_INTERRUPT_PIN
+from esphome.types import ConfigType
 
 chsc6x_ns = cg.esphome_ns.namespace("chsc6x")
 
@@ -24,7 +25,7 @@ CONFIG_SCHEMA = (
 )
 
 
-async def to_code(config):
+async def to_code(config: ConfigType) -> None:
     var = cg.new_Pvariable(config[CONF_ID])
     await touchscreen.register_touchscreen(var, config)
     await i2c.register_i2c_device(var, config)

esphome/components/climate_ir/__init__.py

@@ -9,7 +9,8 @@ from esphome.const import (
     CONF_SUPPORTS_COOL,
     CONF_SUPPORTS_HEAT,
 )
-from esphome.cpp_generator import MockObjClass
+from esphome.cpp_generator import MockObj, MockObjClass
+from esphome.types import ConfigType, SafeExpType
 
 _LOGGER = logging.getLogger(__name__)
 
@@ -57,7 +58,7 @@ def climate_ir_with_receiver_schema(
     )
 
 
-async def register_climate_ir(var, config):
+async def register_climate_ir(var: MockObj, config: ConfigType) -> None:
     await cg.register_component(var, config)
     await remote_base.register_transmittable(var, config)
     cg.add(var.set_supports_cool(config[CONF_SUPPORTS_COOL]))
@@ -72,7 +73,7 @@ async def register_climate_ir(var, config):
         cg.add(var.set_humidity_sensor(sens))
 
 
-async def new_climate_ir(config, *args):
+async def new_climate_ir(config: ConfigType, *args: SafeExpType) -> MockObj:
     var = await climate.new_climate(config, *args)
     await register_climate_ir(var, config)
     return var

esphome/components/climate_ir_lg/climate.py

@@ -1,6 +1,7 @@
 import esphome.codegen as cg
 from esphome.components import climate_ir
 import esphome.config_validation as cv
+from esphome.types import ConfigType
 
 AUTO_LOAD = ["climate_ir"]
 
@@ -34,7 +35,7 @@ CONFIG_SCHEMA = climate_ir.climate_ir_with_receiver_schema(LgIrClimate).extend(
 )
 
 
-async def to_code(config):
+async def to_code(config: ConfigType) -> None:
     var = await climate_ir.new_climate_ir(config)
 
     cg.add(var.set_header_high(config[CONF_HEADER_HIGH]))

esphome/components/color_temperature/light.py

@@ -8,6 +8,7 @@ from esphome.const import (
     CONF_OUTPUT_ID,
     CONF_WARM_WHITE_COLOR_TEMPERATURE,
 )
+from esphome.types import ConfigType
 
 CODEOWNERS = ["@jesserockz"]
 
@@ -28,7 +29,7 @@ CONFIG_SCHEMA = cv.All(
 )
 
 
-async def to_code(config):
+async def to_code(config: ConfigType) -> None:
     var = cg.new_Pvariable(config[CONF_OUTPUT_ID])
     await light.register_light(var, config)
 

esphome/components/combination/sensor.py

@@ -16,6 +16,7 @@ from esphome.const import (
     CONF_UNIT_OF_MEASUREMENT,
 )
 from esphome.core.entity_helpers import inherit_property_from
+from esphome.types import ConfigType
 
 _LOGGER = logging.getLogger(__name__)
 
@@ -74,7 +75,7 @@ KALMAN_SOURCE_SCHEMA = cv.Schema(
 )
 
 
-def _migrate_coeffecient(config):
+def _migrate_coeffecient(config: ConfigType) -> ConfigType:
     """Migrate deprecated 'coeffecient' spelling to 'coefficient'."""
     if CONF_COEFFECIENT in config:
         if CONF_COEFFICIENT in config:
@@ -172,7 +173,7 @@ FINAL_VALIDATE_SCHEMA = cv.All(
 )
 
 
-async def to_code(config):
+async def to_code(config: ConfigType) -> None:
     var = cg.new_Pvariable(config[CONF_ID])
     await cg.register_component(var, config)
     await sensor.register_sensor(var, config)