esphome::Component Class Reference

#include <component.h>

Inheritance diagram for esphome::Component:

Public Member Functions
virtual void	setup ()
	Where the component's initialization should happen.
virtual void	loop ()
	This method will be called repeatedly.
virtual void	dump_config ()
virtual float	get_setup_priority () const
	priority of setup().
float	get_actual_setup_priority () const
void	set_setup_priority (float priority)
virtual float	get_loop_priority () const
	priority of loop().
void	call ()
virtual void	on_shutdown ()
virtual void	on_safe_shutdown ()
virtual bool	teardown ()
	Called during teardown to allow component to gracefully finish operations.
virtual void	on_powerdown ()
	Called after teardown is complete to power down hardware.
uint8_t	get_component_state () const
void	reset_to_construction_state ()
	Reset this component back to the construction state to allow setup to run again.
bool	is_in_loop_state () const
	Check if this component has completed setup and is in the loop state.
bool	is_idle () const
	Check if this component is idle.
void	mark_failed ()
	Mark this component as failed.
	ESPDEPRECATED ("Use mark_failed(LOG_STR(\"static string literal\")) instead. Do NOT use .c_str() from temporary " "strings. Will stop working in 2026.6.0", "2025.12.0") void mark_failed(const char *message)
void	mark_failed (const LogString *message)
void	disable_loop ()
	Disable this component's loop.
void	enable_loop ()
	Enable this component's loop.
void	enable_loop_soon_any_context ()
	Thread and ISR-safe version of enable_loop() that can be called from any context.
bool	is_failed () const
bool	is_ready () const
virtual bool	can_proceed ()
bool	status_has_warning () const
bool	status_has_error () const
void	status_set_warning (const char *message=nullptr)
void	status_set_warning (const LogString *message)
void	status_set_error ()
	ESPDEPRECATED ("Use status_set_error(LOG_STR(\"static string literal\")) instead. Do NOT use .c_str() from temporary " "strings. Will stop working in 2026.6.0", "2025.12.0") void status_set_error(const char *message)
void	status_set_error (const LogString *message)
void	status_clear_warning ()
void	status_clear_error ()
void	status_momentary_warning (const char *name, uint32_t length=5000)
	Set warning status flag and automatically clear it after a timeout.
void	status_momentary_error (const char *name, uint32_t length=5000)
	Set error status flag and automatically clear it after a timeout.
bool	has_overridden_loop () const
void	set_component_source (const LogString *source)
	Set where this component was loaded from for some debug messages.
const LogString *	get_component_log_str () const
	Get the integration where this component was declared as a LogString for logging.
bool	should_warn_of_blocking (uint32_t blocking_time)

Protected Member Functions
void	call_loop_ ()
virtual void	call_setup ()
void	call_dump_config_ ()
void	set_component_state_ (uint8_t state)
	Helper to set component state (clears state bits and sets new state)
bool	set_status_flag_ (uint8_t flag)
	Helper to set a status LED flag on both this component and the app.
void	set_interval (uint32_t id, uint32_t interval, std::function< void()> &&f)
	Set an interval function with a numeric ID (zero heap allocation).
void	set_interval (InternalSchedulerID id, uint32_t interval, std::function< void()> &&f)
void	set_interval (uint32_t interval, std::function< void()> &&f)
bool	cancel_interval (uint32_t id)
bool	cancel_interval (InternalSchedulerID id)
ESPDEPRECATED("set_retry is deprecated and will be removed in 2026.8.0. Use set_timeout or set_interval instead.", "2026.2.0") void set_retry(const std	ESPDEPRECATED ("set_retry is deprecated and will be removed in 2026.8.0. Use set_timeout or set_interval instead.", "2026.2.0") void set_retry(const char *name
	ESPDEPRECATED ("set_retry is deprecated and will be removed in 2026.8.0. Use set_timeout or set_interval instead.", "2026.2.0") void set_retry(uint32_t id
	ESPDEPRECATED ("set_retry is deprecated and will be removed in 2026.8.0. Use set_timeout or set_interval instead.", "2026.2.0") void set_retry(uint32_t initial_wait_time
ESPDEPRECATED("cancel_retry is deprecated and will be removed in 2026.8.0.", "2026.2.0") bool cancel_retry(const std	ESPDEPRECATED ("cancel_retry is deprecated and will be removed in 2026.8.0.", "2026.2.0") bool cancel_retry(const char *name)
	ESPDEPRECATED ("cancel_retry is deprecated and will be removed in 2026.8.0.", "2026.2.0") bool cancel_retry(uint32_t id)
void	set_timeout (uint32_t id, uint32_t timeout, std::function< void()> &&f)
	Set a timeout function with a numeric ID (zero heap allocation).
void	set_timeout (InternalSchedulerID id, uint32_t timeout, std::function< void()> &&f)
void	set_timeout (uint32_t timeout, std::function< void()> &&f)
bool	cancel_timeout (uint32_t id)
bool	cancel_timeout (InternalSchedulerID id)
void	defer (std::function< void()> &&f)
	Defer a callback to the next loop() call.
void	defer (uint32_t id, std::function< void()> &&f)
	Defer a callback with a numeric ID (zero heap allocation)
bool	cancel_defer (uint32_t id)

Protected Attributes
ESPDEPRECATED("Use const char* or uint32_t overload instead. Removed in 2026.7.0", "2026.1.0") void set_interval(const std voi	set_interval )(const char *name, uint32_t interval, std::function< void()> &&f)
	Set an interval function with a unique name.
ESPDEPRECATED("Use const char* or uint32_t overload instead. Removed in 2026.7.0", "2026.1.0") bool cancel_interval(const std boo	cancel_interval )(const char *name)
	Cancel an interval function.
ESPDEPRECATED("set_retry is deprecated and will be removed in 2026.8.0. Use set_timeout or set_interval instead.", "2026.2.0") void set_retry(const std uint32_t	initial_wait_time
ESPDEPRECATED("set_retry is deprecated and will be removed in 2026.8.0. Use set_timeout or set_interval instead.", "2026.2.0") void set_retry(const std uint32_t uint8_t	max_attempts
ESPDEPRECATED("set_retry is deprecated and will be removed in 2026.8.0. Use set_timeout or set_interval instead.", "2026.2.0") void set_retry(const std uint32_t uint8_t std::function< RetryResult(uint8_t)> &&	f
ESPDEPRECATED("set_retry is deprecated and will be removed in 2026.8.0. Use set_timeout or set_interval instead.", "2026.2.0") void set_retry(const std uint32_t uint8_t std::function< RetryResult(uint8_t)> float	backoff_increase_factor = 1.0f)
uint32_t	initial_wait_time
uint32_t uint8_t	max_attempts
uint32_t uint8_t std::function< RetryResult(uint8_t)> &&	f
uint32_t uint8_t std::function< RetryResult(uint8_t)> float	backoff_increase_factor = 1.0f)
uint8_t	max_attempts
uint8_t std::function< RetryResult(uint8_t)> &&	f
uint8_t std::function< RetryResult(uint8_t)> float	backoff_increase_factor = 1.0f)
ESPDEPRECATED("Use const char* or uint32_t overload instead. Removed in 2026.7.0", "2026.1.0") void set_timeout(const std voi	set_timeout )(const char *name, uint32_t timeout, std::function< void()> &&f)
	Set a timeout function with a unique name.
ESPDEPRECATED("Use const char* or uint32_t overload instead. Removed in 2026.7.0", "2026.1.0") bool cancel_timeout(const std boo	cancel_timeout )(const char *name)
	Cancel a timeout function.
ESPDEPRECATED("Use const char* overload instead. Removed in 2026.7.0", "2026.1.0") void defer(const std voi	defer )(const char *name, std::function< void()> &&f)
	Defer a callback to the next loop() call.
ESPDEPRECATED("Use const char* overload instead. Removed in 2026.7.0", "2026.1.0") bool cancel_defer(const std boo	cancel_defer )(const char *name)
	Cancel a defer callback using the specified name, name must not be empty.
const LogString *	component_source_ {nullptr}
uint16_t	warn_if_blocking_over_ {WARN_IF_BLOCKING_OVER_MS}
	Warn if blocked for this many ms (max 65.5s)
uint8_t	component_state_ {0x00}
	State of this component - each bit has a purpose: Bits 0-2: Component state (0x00=CONSTRUCTION, 0x01=SETUP, 0x02=LOOP, 0x03=FAILED, 0x04=LOOP_DONE) Bit 3: STATUS_LED_WARNING Bit 4: STATUS_LED_ERROR Bit 5: Has overridden loop() (set at registration time) Bits 6-7: Unused - reserved for future expansion.
volatile bool	pending_enable_loop_ {false}
	ISR-safe flag for enable_loop_soon_any_context.

Detailed Description

Definition at line 87 of file component.h.

Member Function Documentation

call()

void esphome::Component::call

(

)

Definition at line 237 of file component.cpp.

call_dump_config_()

void esphome::Component::call_dump_config_ ( )

protected

Definition at line 214 of file component.cpp.

call_loop_()

void esphome::Component::call_loop_ ( )

protected

Definition at line 212 of file component.cpp.

call_setup()

void esphome::Component::call_setup ( )

protectedvirtual

Reimplemented in esphome::light::AddressableLight, esphome::mqtt::MQTTComponent, esphome::PollingComponent, and esphome::touchscreen::Touchscreen.

Definition at line 213 of file component.cpp.

can_proceed()

bool esphome::Component::can_proceed ( )

virtual

Reimplemented in esphome::cst226::CST226Touchscreen, esphome::esp32_ble_server::BLEServer, esphome::gt911::GT911Touchscreen, esphome::midea::ApplianceBase< T >, esphome::midea::ApplianceBase< dudanov::midea::ac::AirConditioner >, esphome::mqtt::MQTTClientComponent, esphome::qspi_dbi::QspiDbi, esphome::wifi::WiFiComponent, esphome::wireguard::Wireguard, and esphome::zwave_proxy::ZWaveProxy.

Definition at line 390 of file component.cpp.

cancel_defer()

bool esphome::Component::cancel_defer ( uint32_t id )

protected

cancel_interval() [1/2]

bool esphome::Component::cancel_interval ( InternalSchedulerID id )

protected

cancel_interval() [2/2]

bool esphome::Component::cancel_interval ( uint32_t id )

protected

cancel_timeout() [1/2]

bool esphome::Component::cancel_timeout ( InternalSchedulerID id )

protected

cancel_timeout() [2/2]

bool esphome::Component::cancel_timeout ( uint32_t id )

protected

defer() [1/2]

void esphome::Component::defer ( std::function< void()> && f )

protected

Defer a callback to the next loop() call.

defer() [2/2]

void esphome::Component::defer ( uint32_t id, std::function< void()> && f )

protected

Defer a callback with a numeric ID (zero heap allocation)

disable_loop()

void esphome::Component::disable_loop

(

)

Disable this component's loop.

The loop() method will no longer be called.

This is useful for components that only need to run for a certain period of time or when inactive, saving CPU cycles.

Note

Components should call this->disable_loop() on themselves, not on other components. This ensures the component's state is properly updated along with the loop partition.

Definition at line 300 of file component.cpp.

dump_config()

void esphome::Component::dump_config ( )

virtual

Reimplemented in esphome::a01nyub::A01nyubComponent, esphome::a02yyuw::A02yyuwComponent, esphome::a4988::A4988, esphome::absolute_humidity::AbsoluteHumidityComponent, esphome::ac_dimmer::AcDimmer, esphome::adc128s102::ADC128S102, esphome::adc128s102::ADC128S102Sensor, esphome::adc::ADCSensor, esphome::ade7880::ADE7880, esphome::ade7953_base::ADE7953, esphome::ade7953_i2c::AdE7953I2c, esphome::ade7953_spi::AdE7953Spi, esphome::ads1115::ADS1115Component, esphome::ads1115::ADS1115Sensor, esphome::ads1118::ADS1118, esphome::ads1118::ADS1118Sensor, esphome::ags10::AGS10Component, esphome::aht10::AHT10Component, esphome::aic3204::AIC3204, esphome::airthings_wave_mini::AirthingsWaveMini, esphome::airthings_wave_plus::AirthingsWavePlus, esphome::alpha3::Alpha3, esphome::am2315c::AM2315C, esphome::am2320::AM2320Component, esphome::am43::Am43, esphome::am43::Am43Component, esphome::analog_threshold::AnalogThresholdBinarySensor, esphome::anova::Anova, esphome::apds9306::APDS9306, esphome::api::APIServer, esphome::aqi::AQISensor, esphome::as3935_i2c::I2CAS3935Component, esphome::as3935_spi::SPIAS3935Component, esphome::as5600::AS5600Component, esphome::as5600::AS5600Sensor, esphome::as7341::AS7341Component, esphome::at581x::AT581XComponent, esphome::atc_mithermometer::ATCMiThermometer, esphome::atm90e26::ATM90E26Component, esphome::atm90e32::ATM90E32Component, esphome::axs15231::AXS15231Touchscreen, esphome::b_parasite::BParasite, esphome::bang_bang::BangBangClimate, esphome::bedjet::BedJetClimate, esphome::bedjet::BedJetFan, esphome::bedjet::BedJetHub, esphome::bedjet::BedjetSensor, esphome::beken_spi_led_strip::BekenSPILEDStripLightOutput, esphome::bh1750::BH1750Sensor, esphome::bh1900nux::BH1900NUXSensor, esphome::binary::BinaryFan, esphome::binary_sensor_map::BinarySensorMap, esphome::bl0939::BL0939, esphome::bl0940::BL0940, esphome::bl0940::CalibrationNumber, esphome::bl0940::CalibrationResetButton, esphome::bl0942::BL0942, esphome::ble_client::BLEBinaryOutput, esphome::ble_client::BLEClient, esphome::ble_client::BLEClientRSSISensor, esphome::ble_client::BLEClientSwitch, esphome::ble_client::BLESensor, esphome::ble_client::BLETextSensor, esphome::ble_nus::BLENUS, esphome::ble_presence::BLEPresenceDevice, esphome::ble_rssi::BLERSSISensor, esphome::ble_scanner::BLEScanner, esphome::bluetooth_proxy::BluetoothConnection, esphome::bluetooth_proxy::BluetoothProxy, esphome::bm8563::BM8563, esphome::bme280_base::BME280Component, esphome::bme680::BME680Component, esphome::bme680_bsec::BME680BSECComponent, esphome::bme68x_bsec2::BME68xBSEC2Component, esphome::bmi160::BMI160Component, esphome::bmp085::BMP085Component, esphome::bmp280_base::BMP280Component, esphome::bmp280_i2c::BMP280I2CComponent, esphome::bmp3xx_base::BMP3XXComponent, esphome::bmp581_base::BMP581Component, esphome::bmp581_i2c::BMP581I2CComponent, esphome::bp1658cj::BP1658CJ, esphome::bp5758d::BP5758D, esphome::bthome_mithermometer::BTHomeMiThermometer, esphome::canbus::Canbus, esphome::cap1188::CAP1188Component, esphome::captive_portal::CaptivePortal, esphome::cc1101::CC1101Component, esphome::ccs811::CCS811Component, esphome::cd74hc4067::CD74HC4067Component, esphome::cd74hc4067::CD74HC4067Sensor, esphome::ch422g::CH422GComponent, esphome::ch423::CH423Component, esphome::chsc6x::CHSC6XTouchscreen, esphome::climate_ir::ClimateIR, esphome::cm1106::CM1106Component, esphome::combination::KalmanCombinationComponent, esphome::combination::LinearCombinationComponent, esphome::combination::MaximumCombinationComponent, esphome::combination::MeanCombinationComponent, esphome::combination::MedianCombinationComponent, esphome::combination::MinimumCombinationComponent, esphome::combination::MostRecentCombinationComponent, esphome::combination::RangeCombinationComponent, esphome::combination::SumCombinationComponent, esphome::copy::CopyBinarySensor, esphome::copy::CopyButton, esphome::copy::CopyCover, esphome::copy::CopyFan, esphome::copy::CopyLock, esphome::copy::CopyNumber, esphome::copy::CopySelect, esphome::copy::CopySensor, esphome::copy::CopySwitch, esphome::copy::CopyText, esphome::copy::CopyTextSensor, esphome::cs5460a::CS5460AComponent, esphome::cse7761::CSE7761Component, esphome::cse7766::CSE7766Component, esphome::cst226::CST226Button, esphome::cst226::CST226Touchscreen, esphome::cst816::CST816Touchscreen, esphome::ct_clamp::CTClampSensor, esphome::current_based::CurrentBasedCover, esphome::dac7678::DAC7678Output, esphome::dallas_temp::DallasTemperatureSensor, esphome::daly_bms::DalyBmsComponent, esphome::debug::DebugComponent, esphome::deep_sleep::DeepSleepComponent, esphome::dfplayer::DFPlayer, esphome::dht12::DHT12Component, esphome::dht::DHT, esphome::dlms_meter::DlmsMeterComponent, esphome::dps310::DPS310Component, esphome::ds1307::DS1307Component, esphome::ds2484::DS2484OneWireBus, esphome::dsmr::Dsmr, esphome::duty_cycle::DutyCycleSensor, esphome::duty_time_sensor::DutyTimeSensor, esphome::ee895::EE895Component, esphome::ektf2232::EKTF2232Touchscreen, esphome::emc2101::Emc2101Component, esphome::emc2101::EMC2101Sensor, esphome::endstop::EndstopCover, esphome::ens160_base::ENS160Component, esphome::ens210::ENS210Component, esphome::epaper_spi::EPaperBase, esphome::es7210::ES7210, esphome::es7243e::ES7243E, esphome::es8156::ES8156, esphome::es8311::ES8311, esphome::esp32_ble::ESP32BLE, esphome::esp32_ble_beacon::ESP32BLEBeacon, esphome::esp32_ble_client::BLEClientBase, esphome::esp32_ble_server::BLEServer, esphome::esp32_ble_tracker::ESP32BLETracker, esphome::esp32_camera::ESP32Camera, esphome::esp32_camera_web_server::CameraWebServer, esphome::esp32_dac::ESP32DAC, esphome::esp32_hosted::Esp32HostedUpdate, esphome::esp32_improv::ESP32ImprovComponent, esphome::esp32_rmt_led_strip::ESP32RMTLEDStripLightOutput, esphome::esp32_touch::ESP32TouchComponent, esphome::esp8266_pwm::ESP8266PWM, esphome::esp_ldo::EspLdo, esphome::ESPHomeOTAComponent, esphome::espnow::ESPNowComponent, esphome::ethernet::EthernetComponent, esphome::ethernet_info::DNSAddressEthernetInfo, esphome::ethernet_info::IPAddressEthernetInfo, esphome::ethernet_info::MACAddressEthernetInfo, esphome::ezo::EZOSensor, esphome::ezo_pmp::EzoPMP, esphome::factory_reset::FactoryResetButton, esphome::factory_reset::FactoryResetComponent, esphome::factory_reset::FactoryResetSwitch, esphome::fastled_base::FastLEDLightOutput, esphome::feedback::FeedbackCover, esphome::fingerprint_grow::FingerprintGrowComponent, esphome::fs3000::FS3000Component, esphome::ft5x06::FT5x06Touchscreen, esphome::ft63x6::FT63X6Touchscreen, esphome::gcja5::GCJA5Component, esphome::gl_r01_i2c::GLR01I2CComponent, esphome::gp2y1010au0f::GP2Y1010AU0FSensor, esphome::gp8403::GP8403Component, esphome::gp8403::GP8403Output, esphome::gpio::GPIOBinaryOutput, esphome::gpio::GPIOBinarySensor, esphome::gpio::GPIOOneWireBus, esphome::gpio::GPIOSwitch, esphome::gps::GPS, esphome::graph::Graph, esphome::graphical_display_menu::GraphicalDisplayMenu, esphome::gree::GreeModeBitSwitch, esphome::grove_tb6612fng::GroveMotorDriveTB6612FNG, esphome::growatt_solar::GrowattSolar, esphome::gt911::GT911Button, esphome::gt911::GT911Touchscreen, esphome::haier::HaierClimateBase, esphome::haier::HonClimate, esphome::haier::Smartair2Climate, esphome::havells_solar::HavellsSolar, esphome::hbridge::HBridgeFan, esphome::hbridge::HBridgeSwitch, esphome::hc8::HC8Component, esphome::hdc1080::HDC1080Component, esphome::hdc2010::HDC2010Component, esphome::hdc302x::HDC302XComponent, esphome::he60r::HE60rCover, esphome::hlk_fm22x::HlkFm22xComponent, esphome::hlw8012::HLW8012Component, esphome::hlw8032::HLW8032Component, esphome::hm3301::HM3301Component, esphome::hmc5883l::HMC5883LComponent, esphome::homeassistant::HomeassistantBinarySensor, esphome::homeassistant::HomeassistantNumber, esphome::homeassistant::HomeassistantSensor, esphome::homeassistant::HomeassistantSwitch, esphome::homeassistant::HomeassistantTextSensor, esphome::homeassistant::HomeassistantTime, esphome::honeywell_hih_i2c::HoneywellHIComponent, esphome::honeywellabp2_i2c::HONEYWELLABP2Sensor, esphome::honeywellabp::HONEYWELLABPSensor, esphome::hrxl_maxsonar_wr::HrxlMaxsonarWrComponent, esphome::hte501::HTE501Component, esphome::http_request::HttpRequestComponent, esphome::http_request::HttpRequestIDF, esphome::http_request::OtaHttpRequestComponent, esphome::htu21d::HTU21DComponent, esphome::htu31d::HTU31DComponent, esphome::hub75::HUB75Display, esphome::hx711::HX711Sensor, esphome::hydreon_rgxx::HydreonRGxxComponent, esphome::hyt271::HYT271Component, esphome::i2c::ArduinoI2CBus, esphome::i2c::IDFI2CBus, esphome::i2c::ZephyrI2CBus, esphome::i2c_device::I2CDeviceComponent, esphome::i2s_audio::I2SAudioMediaPlayer, esphome::i2s_audio::I2SAudioMicrophone, esphome::i2s_audio::I2SAudioSpeaker, esphome::iaqcore::IAQCore, esphome::ili9xxx::ILI9XXXDisplay, esphome::improv_serial::ImprovSerialComponent, esphome::ina219::INA219Component, esphome::ina226::INA226Component, esphome::ina260::INA260Component, esphome::ina2xx_base::INA2XX, esphome::ina2xx_i2c::INA2XXI2C, esphome::ina2xx_spi::INA2XXSPI, esphome::ina3221::INA3221Component, esphome::infrared::Infrared, esphome::inkbird_ibsth1_mini::InkbirdIbstH1Mini, esphome::inkplate::Inkplate, esphome::integration::IntegrationSensor, esphome::internal_temperature::InternalTemperatureSensor, esphome::ir_rf_proxy::IrRfProxy, esphome::jsn_sr04t::Jsnsr04tComponent, esphome::kamstrup_kmp::KamstrupKMPComponent, esphome::key_collector::KeyCollector, esphome::kuntze::Kuntze, esphome::lc709203f::Lc709203f, esphome::lcd_gpio::GPIOLCDDisplay, esphome::lcd_menu::LCDCharacterMenuComponent, esphome::lcd_pcf8574::PCF8574LCDDisplay, esphome::ld2420::LD2420BinarySensor, esphome::ld2420::LD2420Component, esphome::ld2420::LD2420Sensor, esphome::ld2420::LD2420TextSensor, esphome::ledc::LEDCOutput, esphome::libretiny::LTComponent, esphome::libretiny_pwm::LibreTinyPWM, esphome::light::LightState, esphome::lightwaverf::LightWaveRF, esphome::lilygo_t5_47::LilygoT547Touchscreen, esphome::lm75b::LM75BComponent, esphome::logger::Logger, esphome::lps22::LPS22Component, esphome::ltr390::LTR390Component, esphome::ltr501::LTRAlsPs501Component, esphome::ltr_als_ps::LTRAlsPsComponent, esphome::lvgl::LvglComponent, esphome::m5stack_8angle::M5Stack8AngleComponent, esphome::matrix_keypad::MatrixKeypad, esphome::max17043::MAX17043Component, esphome::max31855::MAX31855Sensor, esphome::max31856::MAX31856Sensor, esphome::max31865::MAX31865Sensor, esphome::max44009::MAX44009Sensor, esphome::max6675::MAX6675Sensor, esphome::max6956::MAX6956, esphome::max6956::MAX6956LedChannel, esphome::max7219::MAX7219Component, esphome::max7219digit::MAX7219Component, esphome::max9611::MAX9611Component, esphome::mcp23008::MCP23008, esphome::mcp23017::MCP23017, esphome::mcp23s08::MCP23S08, esphome::mcp23s17::MCP23S17, esphome::mcp3008::MCP3008, esphome::mcp3008::MCP3008Sensor, esphome::mcp3204::MCP3204, esphome::mcp3204::MCP3204Sensor, esphome::mcp4461::Mcp4461Component, esphome::mcp4725::MCP4725, esphome::mcp4728::MCP4728Component, esphome::mcp47a1::MCP47A1, esphome::mcp9600::MCP9600Component, esphome::mcp9808::MCP9808Sensor, esphome::mdns::MDNSComponent, esphome::mhz19::MHZ19Component, esphome::micro_wake_word::MicroWakeWord, esphome::micronova::MicroNova, esphome::micronova::MicroNovaButton, esphome::micronova::MicroNovaNumber, esphome::micronova::MicroNovaSensor, esphome::micronova::MicroNovaSwitch, esphome::micronova::MicroNovaTextSensor, esphome::midea::ac::AirConditioner, esphome::mipi_dsi::MIPI_DSI, esphome::mipi_rgb::MipiRgb, esphome::mipi_rgb::MipiRgbSpi, esphome::mipi_spi::MipiSpi< BUFFERTYPE, BUFFERPIXEL, IS_BIG_ENDIAN, DISPLAYPIXEL, BUS_TYPE, WIDTH, HEIGHT, OFFSET_WIDTH, OFFSET_HEIGHT >, esphome::mipi_spi::MipiSpiBuffer< BUFFERTYPE, BUFFERPIXEL, IS_BIG_ENDIAN, DISPLAYPIXEL, BUS_TYPE, WIDTH, HEIGHT, OFFSET_WIDTH, OFFSET_HEIGHT, ROTATION, FRACTION, ROUNDING >, esphome::mixer_speaker::MixerSpeaker, esphome::mixer_speaker::SourceSpeaker, esphome::mlx90393::MLX90393Cls, esphome::mlx90614::MLX90614Component, esphome::mmc5603::MMC5603Component, esphome::mmc5983::MMC5983Component, esphome::modbus::Modbus, esphome::modbus_controller::ModbusBinaryOutput, esphome::modbus_controller::ModbusBinarySensor, esphome::modbus_controller::ModbusController, esphome::modbus_controller::ModbusFloatOutput, esphome::modbus_controller::ModbusNumber, esphome::modbus_controller::ModbusSelect, esphome::modbus_controller::ModbusSensor, esphome::modbus_controller::ModbusSwitch, esphome::modbus_controller::ModbusTextSensor, esphome::mopeka_pro_check::MopekaProCheck, esphome::mopeka_std_check::MopekaStdCheck, esphome::mpl3115a2::MPL3115A2Component, esphome::mpr121::MPR121Component, esphome::mpu6050::MPU6050Component, esphome::mpu6886::MPU6886Component, esphome::mqtt::MQTTAlarmControlPanelComponent, esphome::mqtt::MQTTBinarySensorComponent, esphome::mqtt::MQTTButtonComponent, esphome::mqtt::MQTTClientComponent, esphome::mqtt::MQTTCoverComponent, esphome::mqtt::MQTTDateComponent, esphome::mqtt::MQTTDateTimeComponent, esphome::mqtt::MQTTEventComponent, esphome::mqtt::MQTTFanComponent, esphome::mqtt::MQTTJSONLightComponent, esphome::mqtt::MQTTLockComponent, esphome::mqtt::MQTTMessageTrigger, esphome::mqtt::MQTTNumberComponent, esphome::mqtt::MQTTSelectComponent, esphome::mqtt::MQTTSensorComponent, esphome::mqtt::MQTTSwitchComponent, esphome::mqtt::MQTTTextComponent, esphome::mqtt::MQTTTextSensor, esphome::mqtt::MQTTTimeComponent, esphome::mqtt::MQTTUpdateComponent, esphome::mqtt::MQTTValveComponent, esphome::mqtt_subscribe::MQTTSubscribeSensor, esphome::mqtt_subscribe::MQTTSubscribeTextSensor, esphome::ms5611::MS5611Component, esphome::ms8607::MS8607Component, esphome::msa3xx::MSA3xxComponent, esphome::my9231::MY9231OutputComponent, esphome::nau7802::NAU7802Sensor, esphome::nextion::Nextion, esphome::nfc::NfcTagBinarySensor, esphome::npi19::NPI19Component, esphome::nrf52::DeviceFirmwareUpdate, esphome::ntc::NTC, esphome::opentherm::OpenthermHub, esphome::opentherm::OpenthermNumber, esphome::opentherm::OpenthermSwitch, esphome::openthread::OpenThreadComponent, esphome::openthread_info::ChannelOpenThreadInfo, esphome::openthread_info::Eui64OpenThreadInfo, esphome::openthread_info::ExtAddrOpenThreadInfo, esphome::openthread_info::ExtPanIdOpenThreadInfo, esphome::openthread_info::IPAddressOpenThreadInfo, esphome::openthread_info::NetworkKeyOpenThreadInfo, esphome::openthread_info::NetworkNameOpenThreadInfo, esphome::openthread_info::PanIdOpenThreadInfo, esphome::openthread_info::Rloc16OpenThreadInfo, esphome::openthread_info::RoleOpenThreadInfo, esphome::opt3001::OPT3001Sensor, esphome::output::OutputButton, esphome::output::OutputLock, esphome::output::OutputSwitch, esphome::packet_transport::PacketTransport, esphome::pca6416a::PCA6416AComponent, esphome::pca9554::PCA9554Component, esphome::pca9685::PCA9685Output, esphome::pcd8544::PCD8544, esphome::pcf85063::PCF85063Component, esphome::pcf8563::PCF8563Component, esphome::pcf8574::PCF8574Component, esphome::pi4ioe5v6408::PI4IOE5V6408Component, esphome::pid::PIDClimate, esphome::pid::PIDClimateSensor, esphome::pipsolar::PipsolarSwitch, esphome::pm1006::PM1006Component, esphome::pm2005::PM2005Component, esphome::pmsa003i::PMSA003IComponent, esphome::pmsx003::PMSX003Component, esphome::pmwcs3::PMWCS3Component, esphome::pn532::PN532, esphome::pn532_i2c::PN532I2C, esphome::pn532_spi::PN532Spi, esphome::pn7150::PN7150, esphome::pn7150_i2c::PN7150I2C, esphome::pn7160::PN7160, esphome::pn7160_i2c::PN7160I2C, esphome::pn7160_spi::PN7160Spi, esphome::power_supply::PowerSupply, esphome::pulse_counter::PulseCounterSensor, esphome::pulse_meter::PulseMeterSensor, esphome::pulse_width::PulseWidthSensor, esphome::pvvx_mithermometer::PVVXDisplay, esphome::pvvx_mithermometer::PVVXMiThermometer, esphome::pylontech::PylontechComponent, esphome::pylontech::PylontechSensor, esphome::pylontech::PylontechTextSensor, esphome::pzem004t::PZEM004T, esphome::pzemac::PZEMAC, esphome::pzemdc::PZEMDC, esphome::qmc5883l::QMC5883LComponent, esphome::qmp6988::QMP6988Component, esphome::qr_code::QrCode, esphome::qspi_dbi::QspiDbi, esphome::qwiic_pir::QwiicPIRComponent, esphome::radon_eye_rd200::RadonEyeRD200, esphome::rc522::RC522, esphome::rc522_i2c::RC522I2C, esphome::rc522_spi::RC522Spi, esphome::rd03d::RD03DComponent, esphome::remote_base::RemoteReceiverBinarySensorBase, esphome::remote_receiver::RemoteReceiverComponent, esphome::remote_transmitter::RemoteTransmitterComponent, esphome::resampler::ResamplerSpeaker, esphome::resistance::ResistanceSensor, esphome::restart::RestartButton, esphome::restart::RestartSwitch, esphome::rf_bridge::RFBridgeComponent, esphome::rotary_encoder::RotaryEncoderSensor, esphome::rp2040_pio_led_strip::RP2040PIOLEDStripLightOutput, esphome::rp2040_pwm::RP2040PWM, esphome::rpi_dpi_rgb::RpiDpiRgb, esphome::rtttl::Rtttl, esphome::ruuvitag::RuuviTag, esphome::rx8130::RX8130Component, esphome::safe_mode::SafeModeButton, esphome::safe_mode::SafeModeComponent, esphome::safe_mode::SafeModeSwitch, esphome::scd30::SCD30Component, esphome::scd4x::SCD4XComponent, esphome::sdl::Sdl, esphome::sdm_meter::SDMMeter, esphome::sdp3x::SDP3XComponent, esphome::sds011::SDS011Component, esphome::seeed_mr24hpc1::MR24HPC1Component, esphome::seeed_mr60bha2::MR60BHA2Component, esphome::seeed_mr60fda2::MR60FDA2Component, esphome::selec_meter::SelecMeter, esphome::sen0321_sensor::Sen0321Sensor, esphome::sen21231_sensor::Sen21231Sensor, esphome::sen5x::SEN5XComponent, esphome::senseair::SenseAirComponent, esphome::servo::Servo, esphome::sfa30::SFA30Component, esphome::sgp30::SGP30Component, esphome::sgp4x::SGP4xComponent, esphome::shelly_dimmer::ShellyDimmer, esphome::sht3xd::SHT3XDComponent, esphome::sht4x::SHT4XComponent, esphome::shtcx::SHTCXComponent, esphome::shutdown::ShutdownButton, esphome::shutdown::ShutdownSwitch, esphome::sigma_delta_output::SigmaDeltaOutput, esphome::sim800l::Sim800LComponent, esphome::slow_pwm::SlowPWMOutput, esphome::sm10bit_base::Sm10BitBase, esphome::sm16716::SM16716, esphome::sm2135::SM2135, esphome::sm2235::SM2235, esphome::sm2335::SM2335, esphome::sm300d2::SM300D2Sensor, esphome::sml::Sml, esphome::sml::SmlSensor, esphome::sml::SmlTextSensor, esphome::smt100::SMT100Component, esphome::sn74hc165::SN74HC165Component, esphome::sn74hc595::SN74HC595Component, esphome::sntp::SNTPComponent, esphome::sonoff_d1::SonoffD1Output, esphome::sound_level::SoundLevelComponent, esphome::speed::SpeedFan, esphome::spi::SPIComponent, esphome::spi_device::SPIDeviceComponent, esphome::spi_led_strip::SpiLedStrip, esphome::sprinkler::Sprinkler, esphome::sprinkler::SprinklerControllerNumber, esphome::sprinkler::SprinklerControllerSwitch, esphome::sps30::SPS30Component, esphome::ssd1306_i2c::I2CSSD1306, esphome::ssd1306_spi::SPISSD1306, esphome::ssd1322_spi::SPISSD1322, esphome::ssd1325_spi::SPISSD1325, esphome::ssd1327_i2c::I2CSSD1327, esphome::ssd1327_spi::SPISSD1327, esphome::ssd1331_spi::SPISSD1331, esphome::ssd1351_spi::SPISSD1351, esphome::st7567_i2c::I2CST7567, esphome::st7567_spi::SPIST7567, esphome::st7701s::ST7701S, esphome::st7735::ST7735, esphome::st7789v::ST7789V, esphome::st7920::ST7920, esphome::statsd::StatsdComponent, esphome::status::StatusBinarySensor, esphome::status_led::StatusLED, esphome::status_led::StatusLEDLightOutput, esphome::sts3x::STS3XComponent, esphome::stts22h::STTS22HComponent, esphome::sun::SunSensor, esphome::sun::SunTextSensor, esphome::sun_gtil2::SunGTIL2, esphome::switch_::SwitchBinarySensor, esphome::sx126x::SX126x, esphome::sx127x::SX127x, esphome::sx1509::SX1509Component, esphome::sx1509::SX1509FloatOutputChannel, esphome::sy6970::SY6970Component, esphome::t6615::T6615Component, esphome::tc74::TC74Component, esphome::tca9548a::TCA9548AComponent, esphome::tca9555::TCA9555Component, esphome::tcs34725::TCS34725Component, esphome::tee501::TEE501Component, esphome::teleinfo::TeleInfo, esphome::teleinfo::TeleInfoSensor, esphome::teleinfo::TeleInfoTextSensor, esphome::tem3200::TEM3200Component, esphome::template_::TemplateAlarmControlPanel, esphome::template_::TemplateBinarySensor, esphome::template_::TemplateCover, esphome::template_::TemplateDate, esphome::template_::TemplateDateTime, esphome::template_::TemplateFan, esphome::template_::TemplateLock, esphome::template_::TemplateNumber, esphome::template_::TemplateSelect< HAS_LAMBDA, OPTIMISTIC, RESTORE_VALUE, INITIAL_OPTION_INDEX >, esphome::template_::TemplateSensor, esphome::template_::TemplateSwitch, esphome::template_::TemplateText, esphome::template_::TemplateTextSensor, esphome::template_::TemplateTime, esphome::template_::TemplateValve, esphome::template_::TemplateWaterHeater, esphome::thermopro_ble::ThermoProBLE, esphome::thermostat::ThermostatClimate, esphome::time::RealTimeClock, esphome::time_based::TimeBasedCover, esphome::tinyusb::TinyUSB, esphome::tlc59208f::TLC59208FOutput, esphome::tlc5947::TLC5947, esphome::tlc5971::TLC5971, esphome::tm1621::TM1621Display, esphome::tm1637::TM1637Display, esphome::tm1638::TM1638Component, esphome::tm1638::TM1638OutputLed, esphome::tm1638::TM1638SwitchLed, esphome::tm1651::TM1651Display, esphome::tmp102::TMP102Component, esphome::tmp1075::TMP1075Sensor, esphome::tmp117::TMP117Component, esphome::tof10120::TOF10120Sensor, esphome::tormatic::Tormatic, esphome::total_daily_energy::TotalDailyEnergy, esphome::tsl2561::TSL2561Sensor, esphome::tsl2591::TSL2591Component, esphome::tt21100::TT21100Button, esphome::tt21100::TT21100Touchscreen, esphome::ttp229_bsf::TTP229BSFComponent, esphome::ttp229_lsf::TTP229LSFComponent, esphome::tuya::Tuya, esphome::tuya::TuyaBinarySensor, esphome::tuya::TuyaClimate, esphome::tuya::TuyaCover, esphome::tuya::TuyaFan, esphome::tuya::TuyaLight, esphome::tuya::TuyaNumber, esphome::tuya::TuyaSelect, esphome::tuya::TuyaSensor, esphome::tuya::TuyaSwitch, esphome::tuya::TuyaTextSensor, esphome::tx20::Tx20Component, esphome::uart::ESP8266UartComponent, esphome::uart::HostUartComponent, esphome::uart::IDFUARTComponent, esphome::uart::LibreTinyUARTComponent, esphome::uart::RP2040UartComponent, esphome::uart::UARTButton, esphome::uart::UARTEvent, esphome::uart::UARTSwitch, esphome::udp::UDPComponent, esphome::ufire_ec::UFireECComponent, esphome::ufire_ise::UFireISEComponent, esphome::uln2003::ULN2003, esphome::ultrasonic::UltrasonicSensorComponent, esphome::uponor_smatrix::UponorSmatrixClimate, esphome::uponor_smatrix::UponorSmatrixComponent, esphome::uptime::UptimeSecondsSensor, esphome::uptime::UptimeTextSensor, esphome::uptime::UptimeTimestampSensor, esphome::usb_cdc_acm::USBCDCACMComponent, esphome::usb_host::USBClient, esphome::usb_uart::USBUartComponent, esphome::vbus::DeltaSolBS2009BSensor, esphome::vbus::DeltaSolBS2009Sensor, esphome::vbus::DeltaSolBS2BSensor, esphome::vbus::DeltaSolBS2Sensor, esphome::vbus::DeltaSolBSPlusBSensor, esphome::vbus::DeltaSolBSPlusSensor, esphome::vbus::DeltaSolCBSensor, esphome::vbus::DeltaSolCS2BSensor, esphome::vbus::DeltaSolCS2Sensor, esphome::vbus::DeltaSolCSensor, esphome::vbus::DeltaSolCSPlusBSensor, esphome::vbus::DeltaSolCSPlusSensor, esphome::vbus::VBus, esphome::vbus::VBusCustomBSensor, esphome::vbus::VBusCustomSensor, esphome::veml3235::VEML3235Sensor, esphome::veml7700::VEML7700Component, esphome::version::VersionTextSensor, esphome::vl53l0x::VL53L0XSensor, esphome::wake_on_lan::WakeOnLanButton, esphome::waveshare_epaper::GDEW0154M09, esphome::waveshare_epaper::GDEW029T5, esphome::waveshare_epaper::GDEY029T94, esphome::waveshare_epaper::GDEY042T81, esphome::waveshare_epaper::GDEY0583T81, esphome::waveshare_epaper::WaveshareEPaper13P3InK, esphome::waveshare_epaper::WaveshareEPaper1P54InBV2, esphome::waveshare_epaper::WaveshareEPaper2P13InDKE, esphome::waveshare_epaper::WaveshareEPaper2P13InV3, esphome::waveshare_epaper::WaveshareEPaper2P7In, esphome::waveshare_epaper::WaveshareEPaper2P7InB, esphome::waveshare_epaper::WaveshareEPaper2P7InBV2, esphome::waveshare_epaper::WaveshareEPaper2P7InV2, esphome::waveshare_epaper::WaveshareEPaper2P9InB, esphome::waveshare_epaper::WaveshareEPaper2P9InBV3, esphome::waveshare_epaper::WaveshareEPaper2P9InD, esphome::waveshare_epaper::WaveshareEPaper2P9InDKE, esphome::waveshare_epaper::WaveshareEPaper2P9InV2R2, esphome::waveshare_epaper::WaveshareEPaper4P2In, esphome::waveshare_epaper::WaveshareEPaper4P2InBV2, esphome::waveshare_epaper::WaveshareEPaper4P2InBV2BWR, esphome::waveshare_epaper::WaveshareEPaper5P65InF, esphome::waveshare_epaper::WaveshareEPaper5P8In, esphome::waveshare_epaper::WaveshareEPaper5P8InV2, esphome::waveshare_epaper::WaveshareEPaper7P3InF, esphome::waveshare_epaper::WaveshareEPaper7P5In, esphome::waveshare_epaper::WaveshareEPaper7P5InBC, esphome::waveshare_epaper::WaveshareEPaper7P5InBV2, esphome::waveshare_epaper::WaveshareEPaper7P5InBV3, esphome::waveshare_epaper::WaveshareEPaper7P5InBV3BWR, esphome::waveshare_epaper::WaveshareEPaper7P5InHDB, esphome::waveshare_epaper::WaveshareEPaper7P5InV2, esphome::waveshare_epaper::WaveshareEPaper7P5InV2alt, esphome::waveshare_epaper::WaveshareEPaper7P5InV2P, esphome::waveshare_epaper::WaveshareEPaperTypeA, esphome::web_server::WebServer, esphome::web_server::WebServerOTAComponent, esphome::weikai_i2c::WeikaiComponentI2C, esphome::weikai_spi::WeikaiComponentSPI, esphome::wiegand::Wiegand, esphome::wifi::WiFiComponent, esphome::wifi_info::BSSIDWiFiInfo, esphome::wifi_info::DNSAddressWifiInfo, esphome::wifi_info::IPAddressWiFiInfo, esphome::wifi_info::MacAddressWifiInfo, esphome::wifi_info::PowerSaveModeWiFiInfo, esphome::wifi_info::ScanResultsWiFiInfo, esphome::wifi_info::SSIDWiFiInfo, esphome::wireguard::Wireguard, esphome::wl_134::Wl134Component, esphome::wts01::WTS01Sensor, esphome::x9c::X9cOutput, esphome::xgzp68xx::XGZP68XXComponent, esphome::xiaomi_cgd1::XiaomiCGD1, esphome::xiaomi_cgdk2::XiaomiCGDK2, esphome::xiaomi_cgg1::XiaomiCGG1, esphome::xiaomi_cgpr1::XiaomiCGPR1, esphome::xiaomi_gcls002::XiaomiGCLS002, esphome::xiaomi_hhccjcy01::XiaomiHHCCJCY01, esphome::xiaomi_hhccjcy10::XiaomiHHCCJCY10, esphome::xiaomi_hhccpot002::XiaomiHHCCPOT002, esphome::xiaomi_jqjcy01ym::XiaomiJQJCY01YM, esphome::xiaomi_lywsd02::XiaomiLYWSD02, esphome::xiaomi_lywsd02mmc::XiaomiLYWSD02MMC, esphome::xiaomi_lywsd03mmc::XiaomiLYWSD03MMC, esphome::xiaomi_lywsdcgq::XiaomiLYWSDCGQ, esphome::xiaomi_mhoc303::XiaomiMHOC303, esphome::xiaomi_mhoc401::XiaomiMHOC401, esphome::xiaomi_miscale::XiaomiMiscale, esphome::xiaomi_mjyd02yla::XiaomiMJYD02YLA, esphome::xiaomi_mue4094rt::XiaomiMUE4094RT, esphome::xiaomi_rtcgq02lm::XiaomiRTCGQ02LM, esphome::xiaomi_wx08zm::XiaomiWX08ZM, esphome::xiaomi_xmwsdj04mmc::XiaomiXMWSDJ04MMC, esphome::xl9535::XL9535Component, esphome::xpt2046::XPT2046Component, esphome::zigbee::ZigbeeBinarySensor, esphome::zigbee::ZigbeeComponent, esphome::zigbee::ZigbeeNumber, esphome::zigbee::ZigbeeSensor, esphome::zigbee::ZigbeeSwitch, esphome::zigbee::ZigbeeTime, esphome::zio_ultrasonic::ZioUltrasonicComponent, esphome::zwave_proxy::ZWaveProxy, and esphome::zyaura::ZyAuraSensor.

Definition at line 453 of file component.cpp.

enable_loop()

void esphome::Component::enable_loop

(

)

Enable this component's loop.

The loop() method will be called normally.

This is useful for components that transition between active and inactive states and need to re-enable their loop() method when becoming active again.

Note

Components should call this->enable_loop() on themselves, not on other components. This ensures the component's state is properly updated along with the loop partition.

Definition at line 307 of file component.cpp.

enable_loop_soon_any_context()

void IRAM_ATTR HOT esphome::Component::enable_loop_soon_any_context

(

)

Thread and ISR-safe version of enable_loop() that can be called from any context.

This method defers the actual enable via enable_pending_loops_ to the main loop, making it safe to call from ISR handlers, timer callbacks, other threads, or any interrupt context.

Note

The actual loop enabling will happen on the next main loop iteration.

Only one pending enable request is tracked per component.

There is no disable_loop_soon_any_context() on purpose - it would race against enable calls and synchronization would get too complex to provide a safe version that would work for each component.

Use disable_loop() from the main thread only.

If you need to disable the loop from ISR, carefully implement it in the component itself, with an ISR safe approach, and call disable_loop() in its next loop() iteration. Implementations will need to carefully consider all possible race conditions.

Definition at line 314 of file component.cpp.

ESPDEPRECATED() [1/7]

ESPDEPRECATED("cancel_retry is deprecated and will be removed in 2026.8.0.", "2026.2.0") bool cancel_retry(const std esphome::Component::ESPDEPRECATED ( "cancel_retry is deprecated and will be removed in 2026.8.0." , "2026.2.0"  ) const

protected

ESPDEPRECATED() [2/7]

esphome::Component::ESPDEPRECATED ( "cancel_retry is deprecated and will be removed in 2026.8.0." , "2026.2.0"  )

protected

ESPDEPRECATED() [3/7]

ESPDEPRECATED("set_retry is deprecated and will be removed in 2026.8.0. Use set_timeout or set_interval instead.", "2026.2.0") void set_retry(const std esphome::Component::ESPDEPRECATED ( "set_retry is deprecated and will be removed in 2026.8.0. Use set_timeout or set_interval instead." , "2026.2.0"  ) const

protected

ESPDEPRECATED() [4/7]

esphome::Component::ESPDEPRECATED ( "set_retry is deprecated and will be removed in 2026.8.0. Use set_timeout or set_interval instead." , "2026.2.0"  )

protected

ESPDEPRECATED() [5/7]

esphome::Component::ESPDEPRECATED ( "set_retry is deprecated and will be removed in 2026.8.0. Use set_timeout or set_interval instead." , "2026.2.0"  )

protected

ESPDEPRECATED() [6/7]

esphome::Component::ESPDEPRECATED ( "Use mark_failed(LOG_STR(\"static string literal\")) instead. Do NOT use .c_str() from temporary " "strings. Will stop working in 2026.6.0" , "2025.12.0"  ) const

inline

Definition at line 176 of file component.h.

ESPDEPRECATED() [7/7]

esphome::Component::ESPDEPRECATED	(	"Use status_set_error(LOG_STR(\"static string literal\")) instead. Do NOT use .c_str() from temporary " "strings. Will stop working in 2026.6.0"	,
		"2025.12.0"	) const

get_actual_setup_priority()

float esphome::Component::get_actual_setup_priority

(

)

const

Definition at line 466 of file component.cpp.

get_component_log_str()

const LogString * esphome::Component::get_component_log_str

(

)

const

Get the integration where this component was declared as a LogString for logging.

Returns LOG_STR("<unknown>") if source not set

Definition at line 277 of file component.cpp.

get_component_state()

uint8_t esphome::Component::get_component_state

(

)

const

Definition at line 236 of file component.cpp.

get_loop_priority()

float esphome::Component::get_loop_priority ( ) const

virtual

priority of loop().

higher -> executed earlier

Defaults to 0.

Returns

The loop priority of this component

Reimplemented in esphome::ch422g::CH422GComponent, esphome::ch423::CH423Component, esphome::deep_sleep::DeepSleepComponent, esphome::pca9554::PCA9554Component, esphome::pcf8574::PCF8574Component, esphome::status_led::StatusLED, esphome::status_led::StatusLEDLightOutput, and esphome::wifi::WiFiComponent.

Definition at line 89 of file component.cpp.

get_setup_priority()

float esphome::Component::get_setup_priority ( ) const

virtual

priority of setup().

higher -> executed earlier

Defaults to setup_priority::DATA, i.e. 600.

Returns

The setup priority of this component

Reimplemented in esphome::a4988::A4988, esphome::adc128s102::ADC128S102, esphome::apds9306::APDS9306, esphome::api::APIServer, esphome::atm90e32::ATM90E32Component, esphome::bedjet::BedJetClimate, esphome::bedjet::BedJetFan, esphome::bedjet::BedJetHub, esphome::beken_spi_led_strip::BekenSPILEDStripLightOutput, esphome::binary_sensor::AutorepeatFilter, esphome::binary_sensor::DelayedOffFilter, esphome::binary_sensor::DelayedOnFilter, esphome::binary_sensor::DelayedOnOffFilter, esphome::binary_sensor::MultiClickTrigger, esphome::binary_sensor::SettleFilter, esphome::bl0940::CalibrationNumber, esphome::bp1658cj::BP1658CJ, esphome::bp5758d::BP5758D, esphome::canbus::Canbus, esphome::captive_portal::CaptivePortal, esphome::cd74hc4067::CD74HC4067Sensor, esphome::ch422g::CH422GComponent, esphome::ch423::CH423Component, esphome::ct_clamp::CTClampSensor, esphome::dac7678::DAC7678Output, esphome::debug::DebugComponent, esphome::deep_sleep::DeepSleepComponent, esphome::DelayAction< Ts >, esphome::display_menu_base::DisplayMenuComponent, esphome::ds2484::DS2484OneWireBus, esphome::e131::E131Component, esphome::emc2101::Emc2101Component, esphome::epaper_spi::EPaperBase, esphome::esp32_ble::ESP32BLE, esphome::esp32_ble_beacon::ESP32BLEBeacon, esphome::esp32_ble_client::BLEClientBase, esphome::esp32_ble_server::BLEServer, esphome::esp32_ble_tracker::ESP32BLETracker, esphome::esp32_camera_web_server::CameraWebServer, esphome::esp32_dac::ESP32DAC, esphome::esp32_hosted::Esp32HostedUpdate, esphome::esp32_improv::ESP32ImprovComponent, esphome::esp32_rmt_led_strip::ESP32RMTLEDStripLightOutput, esphome::esp8266_pwm::ESP8266PWM, esphome::esp_ldo::EspLdo, esphome::ESPHomeOTAComponent, esphome::espnow::ESPNowComponent, esphome::espnow::ESPNowTransport, esphome::ethernet::EthernetComponent, esphome::ethernet_info::MACAddressEthernetInfo, esphome::fastled_base::FastLEDLightOutput, esphome::ForCondition< Ts >, esphome::globals::RestoringGlobalsComponent< T >, esphome::globals::RestoringGlobalStringComponent< T, SZ >, esphome::gp2y1010au0f::GP2Y1010AU0FSensor, esphome::gp8403::GP8403Output, esphome::gpio::GPIOBinaryOutput, esphome::gpio::GPIOBinarySensor, esphome::gpio::GPIOOneWireBus, esphome::gpio::GPIOSwitch, esphome::gps::GPS, esphome::graph::Graph, esphome::haier::HaierClimateBase, esphome::hbridge::HBridgeLightOutput, esphome::hbridge::HBridgeSwitch, esphome::homeassistant::HomeassistantBinarySensor, esphome::homeassistant::HomeassistantNumber, esphome::homeassistant::HomeassistantSensor, esphome::homeassistant::HomeassistantSwitch, esphome::homeassistant::HomeassistantTextSensor, esphome::honeywellabp::HONEYWELLABPSensor, esphome::http_request::HttpRequestComponent, esphome::http_request::HttpRequestUpdate, esphome::http_request::OtaHttpRequestComponent, esphome::hub75::HUB75Display, esphome::i2c::ArduinoI2CBus, esphome::i2c::IDFI2CBus, esphome::i2c::ZephyrI2CBus, esphome::i2s_audio::I2SAudioMediaPlayer, esphome::i2s_audio::I2SAudioSpeaker, esphome::ili9xxx::ILI9XXXDisplay, esphome::improv_serial::ImprovSerialComponent, esphome::infrared::Infrared, esphome::inkplate::Inkplate, esphome::lcd_base::LCDDisplay, esphome::lcd_menu::LCDCharacterMenuComponent, esphome::ld2420::LD2420Component, esphome::ledc::LEDCOutput, esphome::libretiny::LTComponent, esphome::libretiny_pwm::LibreTinyPWM, esphome::light::LightState, esphome::logger::Logger, esphome::LoopTrigger, esphome::lvgl::LvglComponent, esphome::max6956::MAX6956, esphome::max6956::MAX6956LedChannel, esphome::max7219::MAX7219Component, esphome::max7219digit::MAX7219Component, esphome::mcp23016::MCP23016, esphome::mcp23xxx_base::MCP23XXXBase< N >, esphome::mcp23xxx_base::MCP23XXXBase< 16 >, esphome::mcp23xxx_base::MCP23XXXBase< 8 >, esphome::mcp3008::MCP3008, esphome::mcp3204::MCP3204, esphome::mcp4461::Mcp4461Component, esphome::mcp4728::MCP4728Component, esphome::mdns::MDNSComponent, esphome::micro_wake_word::MicroWakeWord, esphome::midea::ApplianceBase< T >, esphome::midea::ApplianceBase< dudanov::midea::ac::AirConditioner >, esphome::modbus::Modbus, esphome::modbus_controller::ModbusNumber, esphome::mpr121::MPR121Component, esphome::mqtt::MQTTClientComponent, esphome::mqtt::MQTTComponent, esphome::mqtt::MQTTMessageTrigger, esphome::mqtt_subscribe::MQTTSubscribeSensor, esphome::mqtt_subscribe::MQTTSubscribeTextSensor, esphome::my9231::MY9231OutputComponent, esphome::neopixelbus::NeoPixelBusLightOutputBase< T_METHOD, T_COLOR_FEATURE >, esphome::neopixelbus::NeoPixelBusLightOutputBase< T_METHOD, NeoRgbFeature >, esphome::neopixelbus::NeoPixelBusLightOutputBase< T_METHOD, NeoRgbwFeature >, esphome::number::ValueRangeTrigger, esphome::opentherm::OpenthermHub, esphome::openthread::OpenThreadComponent, esphome::openthread::OpenThreadSrpComponent, esphome::openthread_info::IPAddressOpenThreadInfo, esphome::openthread_info::OpenThreadInstancePollingComponent, esphome::output::OutputLock, esphome::output::OutputSwitch, esphome::pca6416a::PCA6416AComponent, esphome::pca9554::PCA9554Component, esphome::pca9685::PCA9685Output, esphome::pcd8544::PCD8544, esphome::pcf8574::PCF8574Component, esphome::pi4ioe5v6408::PI4IOE5V6408Component, esphome::power_supply::PowerSupply, esphome::preferences::IntervalSyncer, esphome::ProjectUpdateTrigger, esphome::prometheus::PrometheusHandler, esphome::remote_transmitter::RemoteTransmitterComponent, esphome::resampler::ResamplerSpeaker, esphome::rp2040_pio_led_strip::RP2040PIOLEDStripLightOutput, esphome::rp2040_pwm::RP2040PWM, esphome::rpi_dpi_rgb::RpiDpiRgb, esphome::safe_mode::SafeModeComponent, esphome::sdl::Sdl, esphome::seeed_mr24hpc1::MR24HPC1Component, esphome::seeed_mr60bha2::MR60BHA2Component, esphome::seeed_mr60fda2::MR60FDA2Component, esphome::sensor::DebounceFilter, esphome::sensor::HeartbeatFilter, esphome::sensor::ThrottleAverageFilter, esphome::sensor::TimeoutFilterBase, esphome::sensor::ValueRangeTrigger, esphome::shelly_dimmer::ShellyDimmer, esphome::ShutdownTrigger, esphome::slow_pwm::SlowPWMOutput, esphome::sm10bit_base::Sm10BitBase, esphome::sm16716::SM16716, esphome::sm2135::SM2135, esphome::sn74hc165::SN74HC165Component, esphome::sn74hc595::SN74HC595Component, esphome::sntp::SNTPComponent, esphome::sound_level::SoundLevelComponent, esphome::speaker::SpeakerMediaPlayer, esphome::spi::SPIComponent, esphome::spi_led_strip::SpiLedStrip, esphome::sprinkler::SprinklerControllerNumber, esphome::sprinkler::SprinklerControllerSwitch, esphome::ssd1306_base::SSD1306, esphome::ssd1322_base::SSD1322, esphome::ssd1325_base::SSD1325, esphome::ssd1327_base::SSD1327, esphome::ssd1331_base::SSD1331, esphome::ssd1351_base::SSD1351, esphome::st7567_base::ST7567, esphome::st7735::ST7735, esphome::st7789v::ST7789V, esphome::st7920::ST7920, esphome::StartupTrigger, esphome::statsd::StatsdComponent, esphome::status_led::StatusLED, esphome::status_led::StatusLEDLightOutput, esphome::sun_gtil2::SunGTIL2, esphome::sx126x::SX126x, esphome::sx126x::SX126xTransport, esphome::sx127x::SX127x, esphome::sx127x::SX127xTransport, esphome::sx1509::SX1509Component, esphome::sx1509::SX1509FloatOutputChannel, esphome::tca9548a::TCA9548AComponent, esphome::tca9555::TCA9555Component, esphome::template_::TemplateBinarySensor, esphome::template_::TemplateCover, esphome::template_::TemplateDate, esphome::template_::TemplateDateTime, esphome::template_::TemplateLock, esphome::template_::TemplateNumber, esphome::template_::TemplateSelect< HAS_LAMBDA, OPTIMISTIC, RESTORE_VALUE, INITIAL_OPTION_INDEX >, esphome::template_::TemplateSensor, esphome::template_::TemplateSwitch, esphome::template_::TemplateText, esphome::template_::TemplateTextSensor, esphome::template_::TemplateTime, esphome::template_::TemplateValve, esphome::template_::TemplateWaterHeater, esphome::time::CronTrigger, esphome::tinyusb::TinyUSB, esphome::tlc59208f::TLC59208FOutput, esphome::tlc5947::TLC5947, esphome::tlc5971::TLC5971, esphome::tm1621::TM1621Display, esphome::tm1637::TM1637Display, esphome::tm1638::TM1638Component, esphome::tt21100::TT21100Touchscreen, esphome::tuya::Tuya, esphome::uart::ESP8266UartComponent, esphome::uart::HostUartComponent, esphome::uart::IDFUARTComponent, esphome::uart::LibreTinyUARTComponent, esphome::uart::RP2040UartComponent, esphome::uart::UARTTransport, esphome::udp::UDPComponent, esphome::udp::UDPTransport, esphome::uln2003::ULN2003, esphome::uptime::UptimeSecondsSensor, esphome::uptime::UptimeTextSensor, esphome::uptime::UptimeTimestampSensor, esphome::usb_cdc_acm::USBCDCACMComponent, esphome::usb_host::USBClient, esphome::usb_host::USBHost, esphome::voice_assistant::VoiceAssistant, esphome::WaitUntilAction< Ts >, esphome::wake_on_lan::WakeOnLanButton, esphome::waveshare_epaper::WaveshareEPaperBase, esphome::web_server::WebServer, esphome::web_server::WebServerOTAComponent, esphome::weikai::WeikaiComponent, esphome::wiegand::Wiegand, esphome::wifi::WiFiComponent, esphome::wifi_info::ScanResultsWiFiInfo, esphome::wireguard::Wireguard, esphome::xl9535::XL9535Component, and esphome::zwave_proxy::ZWaveProxy.

Definition at line 92 of file component.cpp.

has_overridden_loop()

bool esphome::Component::has_overridden_loop ( ) const

inline

Definition at line 276 of file component.h.

is_failed()

bool esphome::Component::is_failed

(

)

const

Definition at line 383 of file component.cpp.

is_idle()

bool esphome::Component::is_idle

(

)

const

Check if this component is idle.

Being idle means being in LOOP_DONE state. This means the component has completed setup, is not failed, but its loop is currently disabled.

Returns

True if the component is idle

Definition at line 389 of file component.cpp.

is_in_loop_state()

bool esphome::Component::is_in_loop_state

(

)

const

Check if this component has completed setup and is in the loop state.

Returns

True if in loop state, false otherwise.

Definition at line 342 of file component.cpp.

is_ready()

bool esphome::Component::is_ready

(

)

const

Definition at line 384 of file component.cpp.

loop()

void esphome::Component::loop ( )

virtual

This method will be called repeatedly.

Analogous to Arduino's loop(). setup() is guaranteed to be called before this. Defaults to doing nothing.

Reimplemented in esphome::a01nyub::A01nyubComponent, esphome::a02yyuw::A02yyuwComponent, esphome::a4988::A4988, esphome::absolute_humidity::AbsoluteHumidityComponent, esphome::ade7880::ADE7880, esphome::am43::Am43Component, esphome::anova::Anova, esphome::api::APIServer, esphome::atm90e32::ATM90E32Component, esphome::bedjet::BedJetClimate, esphome::bedjet::BedJetHub, esphome::bh1750::BH1750Sensor, esphome::binary_sensor_map::BinarySensorMap, esphome::bl0939::BL0939, esphome::bl0940::BL0940, esphome::bl0942::BL0942, esphome::ble_client::BLEBinaryOutput, esphome::ble_client::BLEClient, esphome::ble_client::BLEClientRSSISensor, esphome::ble_client::BLEClientSwitch, esphome::ble_client::BLESensor, esphome::ble_client::BLETextSensor, esphome::ble_nus::BLENUS, esphome::ble_presence::BLEPresenceDevice, esphome::bluetooth_proxy::BluetoothConnection, esphome::bluetooth_proxy::BluetoothProxy, esphome::bme680_bsec::BME680BSECComponent, esphome::bme68x_bsec2::BME68xBSEC2Component, esphome::bp1658cj::BP1658CJ, esphome::bp5758d::BP5758D, esphome::canbus::Canbus, esphome::cap1188::CAP1188Component, esphome::captive_portal::CaptivePortal, esphome::cc1101::CC1101Component, esphome::ch422g::CH422GComponent, esphome::ch423::CH423Component, esphome::cse7766::CSE7766Component, esphome::ct_clamp::CTClampSensor, esphome::current_based::CurrentBasedCover, esphome::daly_bms::DalyBmsComponent, esphome::datetime::OnDateTimeTrigger, esphome::datetime::OnTimeTrigger, esphome::debug::DebugComponent, esphome::deep_sleep::DeepSleepComponent, esphome::dfplayer::DFPlayer, esphome::dlms_meter::DlmsMeterComponent, esphome::dsmr::Dsmr, esphome::duty_time_sensor::DutyTimeSensor, esphome::e131::E131Component, esphome::endstop::EndstopCover, esphome::epaper_spi::EPaperBase, esphome::esp32_ble::ESP32BLE, esphome::esp32_ble_client::BLEClientBase, esphome::esp32_ble_server::BLEServer, esphome::esp32_ble_tracker::ESP32BLETracker, esphome::esp32_camera::ESP32Camera, esphome::esp32_camera_web_server::CameraWebServer, esphome::esp32_improv::ESP32ImprovComponent, esphome::esp32_touch::ESP32TouchComponent, esphome::ESPHomeOTAComponent, esphome::espnow::ESPNowComponent, esphome::ethernet::EthernetComponent, esphome::ezo::EZOSensor, esphome::ezo_pmp::EzoPMP, esphome::feedback::FeedbackCover, esphome::ForCondition< Ts >, esphome::gcja5::GCJA5Component, esphome::gp2y1010au0f::GP2Y1010AU0FSensor, esphome::gpio::GPIOBinarySensor, esphome::gps::GPS, esphome::growatt_solar::GrowattSolar, esphome::haier::HaierClimateBase, esphome::he60r::HE60rCover, esphome::hlw8032::HLW8032Component, esphome::honeywell_hih_i2c::HoneywellHIComponent, esphome::honeywellabp2_i2c::HONEYWELLABP2Sensor, esphome::hrxl_maxsonar_wr::HrxlMaxsonarWrComponent, esphome::hydreon_rgxx::HydreonRGxxComponent, esphome::i2s_audio::I2SAudioMediaPlayer, esphome::i2s_audio::I2SAudioMicrophone, esphome::i2s_audio::I2SAudioSpeaker, esphome::improv_serial::ImprovSerialComponent, esphome::ina2xx_base::INA2XX, esphome::jsn_sr04t::Jsnsr04tComponent, esphome::kamstrup_kmp::KamstrupKMPComponent, esphome::key_collector::KeyCollector, esphome::kuntze::Kuntze, esphome::ld2420::LD2420Component, esphome::light::LightState, esphome::logger::Logger, esphome::LoopTrigger, esphome::ltr501::LTRAlsPs501Component, esphome::ltr_als_ps::LTRAlsPsComponent, esphome::lvgl::LvglComponent, esphome::matrix_keypad::MatrixKeypad, esphome::max7219digit::MAX7219Component, esphome::mcp23016::MCP23016, esphome::mcp23xxx_base::MCP23XXXBase< N >, esphome::mcp23xxx_base::MCP23XXXBase< 16 >, esphome::mcp23xxx_base::MCP23XXXBase< 8 >, esphome::mcp4461::Mcp4461Component, esphome::mcp4728::MCP4728Component, esphome::micro_wake_word::MicroWakeWord, esphome::micronova::MicroNova, esphome::midea::ApplianceBase< T >, esphome::midea::ApplianceBase< dudanov::midea::ac::AirConditioner >, esphome::mipi_rgb::MipiRgb, esphome::mixer_speaker::MixerSpeaker, esphome::mixer_speaker::SourceSpeaker, esphome::modbus::Modbus, esphome::modbus_controller::ModbusController, esphome::mpr121::MPR121Component, esphome::mqtt::MQTTClientComponent, esphome::msa3xx::MSA3xxComponent, esphome::my9231::MY9231OutputComponent, esphome::nau7802::NAU7802Sensor, esphome::nextion::Nextion, esphome::nrf52::DeviceFirmwareUpdate, esphome::online_image::OnlineImage, esphome::opentherm::OpenthermHub, esphome::packet_transport::PacketTransport, esphome::pca6416a::PCA6416AComponent, esphome::pca9554::PCA9554Component, esphome::pca9685::PCA9685Output, esphome::pcf8574::PCF8574Component, esphome::pi4ioe5v6408::PI4IOE5V6408Component, esphome::pm1006::PM1006Component, esphome::pmsx003::PMSX003Component, esphome::pn532::PN532, esphome::pn7150::PN7150, esphome::pn7160::PN7160, esphome::preferences::IntervalSyncer, esphome::pulse_meter::PulseMeterSensor, esphome::pylontech::PylontechComponent, esphome::pzem004t::PZEM004T, esphome::qwiic_pir::QwiicPIRComponent, esphome::rc522::RC522, esphome::rd03d::RD03DComponent, esphome::rdm6300::RDM6300Component, esphome::remote_receiver::RemoteReceiverComponent, esphome::resampler::ResamplerSpeaker, esphome::rf_bridge::RFBridgeComponent, esphome::rotary_encoder::RotaryEncoderSensor, esphome::rpi_dpi_rgb::RpiDpiRgb, esphome::rtttl::Rtttl, esphome::safe_mode::SafeModeComponent, esphome::script::QueueingScript< Ts >, esphome::script::ScriptWaitAction< C, Ts >, esphome::sdl::Sdl, esphome::sds011::SDS011Component, esphome::seeed_mr24hpc1::MR24HPC1Component, esphome::seeed_mr60bha2::MR60BHA2Component, esphome::seeed_mr60fda2::MR60FDA2Component, esphome::sensor::TimeoutFilterBase, esphome::servo::Servo, esphome::sim800l::Sim800LComponent, esphome::slow_pwm::SlowPWMOutput, esphome::sm10bit_base::Sm10BitBase, esphome::sm16716::SM16716, esphome::sm2135::SM2135, esphome::sml::Sml, esphome::smt100::SMT100Component, esphome::sn74hc165::SN74HC165Component, esphome::sntp::SNTPComponent, esphome::sonoff_d1::SonoffD1Output, esphome::sound_level::SoundLevelComponent, esphome::speaker::SpeakerMediaPlayer, esphome::sprinkler::Sprinkler, esphome::sprinkler::SprinklerControllerSwitch, esphome::st7701s::ST7701S, esphome::status_led::StatusLED, esphome::status_led::StatusLEDLightOutput, esphome::sun_gtil2::SunGTIL2, esphome::sx126x::SX126x, esphome::sx127x::SX127x, esphome::sx1509::SX1509Component, esphome::t6615::T6615Component, esphome::tca9555::TCA9555Component, esphome::teleinfo::TeleInfo, esphome::template_::TemplateAlarmControlPanel, esphome::template_::TemplateBinarySensor, esphome::template_::TemplateCover, esphome::template_::TemplateLock, esphome::template_::TemplateSwitch, esphome::template_::TemplateValve, esphome::template_::TemplateWaterHeater, esphome::thermostat::ThermostatClimate, esphome::time::CronTrigger, esphome::time_based::TimeBasedCover, esphome::tlc59208f::TLC59208FOutput, esphome::tlc5947::TLC5947, esphome::tlc5971::TLC5971, esphome::tm1637::TM1637Display, esphome::tm1638::TM1638Component, esphome::tormatic::Tormatic, esphome::total_daily_energy::TotalDailyEnergy, esphome::touchscreen::Touchscreen, esphome::ttp229_bsf::TTP229BSFComponent, esphome::ttp229_lsf::TTP229LSFComponent, esphome::tuya::Tuya, esphome::tuya::TuyaClimate, esphome::tx20::Tx20Component, esphome::uart::UARTDebugger, esphome::uart::UARTDummyReceiver, esphome::uart::UARTEvent, esphome::uart::UARTSwitch, esphome::uart::UARTTransport, esphome::udp::UDPComponent, esphome::uln2003::ULN2003, esphome::ultrasonic::UltrasonicSensorComponent, esphome::uponor_smatrix::UponorSmatrixClimate, esphome::uponor_smatrix::UponorSmatrixComponent, esphome::usb_cdc_acm::USBCDCACMComponent, esphome::usb_host::USBClient, esphome::usb_host::USBHost, esphome::usb_uart::USBUartComponent, esphome::vbus::VBus, esphome::veml7700::VEML7700Component, esphome::vl53l0x::VL53L0XSensor, esphome::voice_assistant::VoiceAssistant, esphome::WaitUntilAction< Ts >, esphome::web_server::WebServer, esphome::weikai::WeikaiComponent, esphome::wiegand::Wiegand, esphome::wifi::WiFiComponent, esphome::wifi::WiFiConfigureAction< Ts >, esphome::wireguard::Wireguard, esphome::wl_134::Wl134Component, esphome::wts01::WTS01Sensor, esphome::zephyr_ble_server::BLEServer, esphome::zigbee::ZigbeeComponent, and esphome::zwave_proxy::ZWaveProxy.

Definition at line 96 of file component.cpp.

mark_failed() [1/2]

void esphome::Component::mark_failed

(

)

Mark this component as failed.

Any future timeouts/intervals/setup/loop will no longer be called.

This might be useful if a component wants to indicate that a connection to its peripheral failed. For example, i2c based components can check if the remote device is responding and otherwise mark the component as failed. Eventually this will also enable smart status LEDs.

Definition at line 293 of file component.cpp.

mark_failed() [2/2]

void esphome::Component::mark_failed ( const LogString * message )

inline

Definition at line 187 of file component.h.

on_powerdown()

virtual void esphome::Component::on_powerdown ( )

inlinevirtual

Called after teardown is complete to power down hardware.

This is called after all components have finished their teardown process, making it safe to power down hardware like ethernet PHY.

Reimplemented in esphome::ethernet::EthernetComponent, esphome::ili9xxx::ILI9XXXDisplay, esphome::ina219::INA219Component, esphome::pn532::PN532, and esphome::power_supply::PowerSupply.

Definition at line 143 of file component.h.

on_safe_shutdown()

virtual void esphome::Component::on_safe_shutdown ( )

inlinevirtual

Reimplemented in esphome::epaper_spi::EPaperBase, esphome::esp32_dac::ESP32DAC, esphome::safe_mode::SafeModeComponent, and esphome::waveshare_epaper::WaveshareEPaperBase.

Definition at line 130 of file component.h.

on_shutdown()

virtual void esphome::Component::on_shutdown ( )

inlinevirtual

Reimplemented in esphome::api::APIServer, esphome::debug::DebugComponent, esphome::esp32_camera_web_server::CameraWebServer, esphome::esp32_touch::ESP32TouchComponent, esphome::globals::RestoringGlobalsComponent< T >, esphome::globals::RestoringGlobalStringComponent< T, SZ >, esphome::mdns::MDNSComponent, esphome::mqtt::MQTTClientComponent, esphome::opentherm::OpenthermHub, esphome::preferences::IntervalSyncer, esphome::ShutdownTrigger, esphome::wireguard::Wireguard, and esphome::zephyr_ble_server::BLEServer.

Definition at line 129 of file component.h.

reset_to_construction_state()

void esphome::Component::reset_to_construction_state

(

)

Reset this component back to the construction state to allow setup to run again.

This can be used by components that have recoverable failures to attempt setup again.

Definition at line 334 of file component.cpp.

set_component_source()

void esphome::Component::set_component_source ( const LogString * source )

inline

Set where this component was loaded from for some debug messages.

This is set by the ESPHome core, and should not be called manually.

Definition at line 282 of file component.h.

set_component_state_()

void esphome::Component::set_component_state_ ( uint8_t state )

inlineprotected

Helper to set component state (clears state bits and sets new state)

Definition at line 299 of file component.h.

set_interval() [1/3]

void esphome::Component::set_interval ( InternalSchedulerID id, uint32_t interval, std::function< void()> && f )

protected

set_interval() [2/3]

void esphome::Component::set_interval ( uint32_t id, uint32_t interval, std::function< void()> && f )

protected

Set an interval function with a numeric ID (zero heap allocation).

Parameters

id	The numeric identifier for this interval function
interval	The interval in ms
f	The function to call

set_interval() [3/3]

void esphome::Component::set_interval ( uint32_t interval, std::function< void()> && f )

protected

set_setup_priority()

void esphome::Component::set_setup_priority

(

float

priority

)

Definition at line 481 of file component.cpp.

set_status_flag_()

bool esphome::Component::set_status_flag_ ( uint8_t flag )

protected

Helper to set a status LED flag on both this component and the app.

Returns true if the flag was newly set, false if it was already set. Note: Callers often use the return value to decide whether to log a warning/error, so once a flag is set, subsequent (potentially different) messages may be suppressed.

Definition at line 393 of file component.cpp.

set_timeout() [1/3]

void esphome::Component::set_timeout ( InternalSchedulerID id, uint32_t timeout, std::function< void()> && f )

protected

set_timeout() [2/3]

void esphome::Component::set_timeout ( uint32_t id, uint32_t timeout, std::function< void()> && f )

protected

Set a timeout function with a numeric ID (zero heap allocation).

Parameters

id	The numeric identifier for this timeout function
timeout	The timeout in ms
f	The function to call

set_timeout() [3/3]

void esphome::Component::set_timeout ( uint32_t timeout, std::function< void()> && f )

protected

setup()

void esphome::Component::setup ( )

virtual

Where the component's initialization should happen.

Analogous to Arduino's setup(). This method is guaranteed to only be called once. Defaults to doing nothing.

Reimplemented in esphome::a4988::A4988, esphome::absolute_humidity::AbsoluteHumidityComponent, esphome::ac_dimmer::AcDimmer, esphome::adc128s102::ADC128S102, esphome::adc::ADCSensor, esphome::addressable_light::AddressableLightDisplay, esphome::ade7880::ADE7880, esphome::ade7953_base::ADE7953, esphome::ade7953_spi::AdE7953Spi, esphome::ads1115::ADS1115Component, esphome::ads1118::ADS1118, esphome::ags10::AGS10Component, esphome::aht10::AHT10Component, esphome::aic3204::AIC3204, esphome::airthings_wave_plus::AirthingsWavePlus, esphome::alpha3::Alpha3, esphome::am2315c::AM2315C, esphome::am2320::AM2320Component, esphome::am43::Am43, esphome::am43::Am43Component, esphome::analog_threshold::AnalogThresholdBinarySensor, esphome::anova::Anova, esphome::apds9306::APDS9306, esphome::api::APIServer, esphome::aqi::AQISensor, esphome::as3935_spi::SPIAS3935Component, esphome::as5600::AS5600Component, esphome::as7341::AS7341Component, esphome::at581x::AT581XComponent, esphome::atm90e26::ATM90E26Component, esphome::atm90e32::ATM90E32Component, esphome::axs15231::AXS15231Touchscreen, esphome::bang_bang::BangBangClimate, esphome::bedjet::BedJetClimate, esphome::bedjet::BedJetHub, esphome::beken_spi_led_strip::BekenSPILEDStripLightOutput, esphome::bh1750::BH1750Sensor, esphome::bh1900nux::BH1900NUXSensor, esphome::binary::BinaryFan, esphome::binary_sensor::MultiClickTrigger, esphome::bl0939::BL0939, esphome::bl0940::BL0940, esphome::bl0940::CalibrationNumber, esphome::bl0942::BL0942, esphome::ble_client::BLEClient, esphome::ble_nus::BLENUS, esphome::bluetooth_proxy::BluetoothProxy, esphome::bm8563::BM8563, esphome::bme280_base::BME280Component, esphome::bme680::BME680Component, esphome::bme680_bsec::BME680BSECComponent, esphome::bme68x_bsec2::BME68xBSEC2Component, esphome::bmi160::BMI160Component, esphome::bmp085::BMP085Component, esphome::bmp280_base::BMP280Component, esphome::bmp3xx_base::BMP3XXComponent, esphome::bmp581_base::BMP581Component, esphome::bp1658cj::BP1658CJ, esphome::bp5758d::BP5758D, esphome::canbus::Canbus, esphome::canbus::CanbusTrigger, esphome::cap1188::CAP1188Component, esphome::captive_portal::CaptivePortal, esphome::cc1101::CC1101Component, esphome::ccs811::CCS811Component, esphome::cd74hc4067::CD74HC4067Component, esphome::ch422g::CH422GComponent, esphome::ch423::CH423Component, esphome::chsc6x::CHSC6XTouchscreen, esphome::climate_ir::ClimateIR, esphome::cm1106::CM1106Component, esphome::combination::CombinationNoParameterComponent, esphome::combination::KalmanCombinationComponent, esphome::combination::LinearCombinationComponent, esphome::copy::CopyBinarySensor, esphome::copy::CopyCover, esphome::copy::CopyFan, esphome::copy::CopyLock, esphome::copy::CopyNumber, esphome::copy::CopySelect, esphome::copy::CopySensor, esphome::copy::CopySwitch, esphome::copy::CopyText, esphome::copy::CopyTextSensor, esphome::cs5460a::CS5460AComponent, esphome::cse7761::CSE7761Component, esphome::cst226::CST226Button, esphome::cst226::CST226Touchscreen, esphome::cst816::CST816Touchscreen, esphome::current_based::CurrentBasedCover, esphome::dac7678::DAC7678Output, esphome::daikin_arc::DaikinArcClimate, esphome::dallas_temp::DallasTemperatureSensor, esphome::deep_sleep::DeepSleepComponent, esphome::demo::DemoAlarmControlPanel, esphome::demo::DemoBinarySensor, esphome::demo::DemoClimate, esphome::demo::DemoCover, esphome::demo::DemoDate, esphome::demo::DemoDateTime, esphome::demo::DemoNumber, esphome::demo::DemoSwitch, esphome::demo::DemoText, esphome::demo::DemoTime, esphome::dht12::DHT12Component, esphome::dht::DHT, esphome::dps310::DPS310Component, esphome::ds1307::DS1307Component, esphome::ds2484::DS2484OneWireBus, esphome::dsmr::Dsmr, esphome::duty_cycle::DutyCycleSensor, esphome::duty_time_sensor::DutyTimeSensor, esphome::e131::E131Component, esphome::ee895::EE895Component, esphome::ektf2232::EKTF2232Touchscreen, esphome::emc2101::Emc2101Component, esphome::endstop::EndstopCover, esphome::ens160_base::ENS160Component, esphome::ens210::ENS210Component, esphome::epaper_spi::EPaperBase, esphome::es7210::ES7210, esphome::es7243e::ES7243E, esphome::es8156::ES8156, esphome::es8311::ES8311, esphome::esp32_ble::ESP32BLE, esphome::esp32_ble_beacon::ESP32BLEBeacon, esphome::esp32_ble_client::BLEClientBase, esphome::esp32_ble_server::BLEServer, esphome::esp32_ble_tracker::ESP32BLETracker, esphome::esp32_camera::ESP32Camera, esphome::esp32_camera_web_server::CameraWebServer, esphome::esp32_dac::ESP32DAC, esphome::esp32_hosted::Esp32HostedUpdate, esphome::esp32_improv::ESP32ImprovComponent, esphome::esp32_rmt_led_strip::ESP32RMTLEDStripLightOutput, esphome::esp32_touch::ESP32TouchComponent, esphome::esp8266_pwm::ESP8266PWM, esphome::esp_ldo::EspLdo, esphome::ESPHomeOTAComponent, esphome::espnow::ESPNowComponent, esphome::espnow::ESPNowTransport, esphome::ethernet::EthernetComponent, esphome::ethernet_info::DNSAddressEthernetInfo, esphome::ethernet_info::IPAddressEthernetInfo, esphome::ethernet_info::MACAddressEthernetInfo, esphome::factory_reset::FactoryResetComponent, esphome::fastled_base::FastLEDLightOutput, esphome::feedback::FeedbackCover, esphome::fingerprint_grow::FingerprintGrowComponent, esphome::fs3000::FS3000Component, esphome::ft5x06::FT5x06Touchscreen, esphome::ft63x6::FT63X6Touchscreen, esphome::gl_r01_i2c::GLR01I2CComponent, esphome::globals::GlobalsComponent< T >, esphome::globals::RestoringGlobalsComponent< T >, esphome::globals::RestoringGlobalStringComponent< T, SZ >, esphome::gp8403::GP8403Component, esphome::gpio::GPIOBinaryOutput, esphome::gpio::GPIOBinarySensor, esphome::gpio::GPIOOneWireBus, esphome::gpio::GPIOSwitch, esphome::graph::Graph, esphome::graphical_display_menu::GraphicalDisplayMenu, esphome::gree::GreeModeBitSwitch, esphome::grove_tb6612fng::GroveMotorDriveTB6612FNG, esphome::gt911::GT911Button, esphome::gt911::GT911Touchscreen, esphome::haier::HaierClimateBase, esphome::hbridge::HBridgeFan, esphome::hbridge::HBridgeLightOutput, esphome::hbridge::HBridgeSwitch, esphome::hc8::HC8Component, esphome::hdc1080::HDC1080Component, esphome::hdc2010::HDC2010Component, esphome::hdc302x::HDC302XComponent, esphome::he60r::HE60rCover, esphome::heatpumpir::HeatpumpIRClimate, esphome::hlk_fm22x::HlkFm22xComponent, esphome::hlw8012::HLW8012Component, esphome::hm3301::HM3301Component, esphome::hmc5883l::HMC5883LComponent, esphome::homeassistant::HomeassistantBinarySensor, esphome::homeassistant::HomeassistantNumber, esphome::homeassistant::HomeassistantSensor, esphome::homeassistant::HomeassistantSwitch, esphome::homeassistant::HomeassistantTextSensor, esphome::homeassistant::HomeassistantTime, esphome::honeywellabp::HONEYWELLABPSensor, esphome::hte501::HTE501Component, esphome::http_request::HttpRequestUpdate, esphome::htu21d::HTU21DComponent, esphome::htu31d::HTU31DComponent, esphome::hub75::HUB75Display, esphome::hx711::HX711Sensor, esphome::hydreon_rgxx::HydreonRGxxComponent, esphome::i2c::ArduinoI2CBus, esphome::i2c::IDFI2CBus, esphome::i2c::ZephyrI2CBus, esphome::i2s_audio::I2SAudioComponent, esphome::i2s_audio::I2SAudioMediaPlayer, esphome::i2s_audio::I2SAudioMicrophone, esphome::i2s_audio::I2SAudioSpeaker, esphome::iaqcore::IAQCore, esphome::ili9xxx::ILI9XXXDisplay, esphome::improv_serial::ImprovSerialComponent, esphome::ina219::INA219Component, esphome::ina226::INA226Component, esphome::ina260::INA260Component, esphome::ina2xx_base::INA2XX, esphome::ina2xx_i2c::INA2XXI2C, esphome::ina2xx_spi::INA2XXSPI, esphome::ina3221::INA3221Component, esphome::infrared::Infrared, esphome::inkplate::Inkplate, esphome::integration::IntegrationSensor, esphome::internal_temperature::InternalTemperatureSensor, esphome::interval::IntervalTrigger, esphome::kmeteriso::KMeterISOComponent, esphome::lc709203f::Lc709203f, esphome::lcd_base::LCDDisplay, esphome::lcd_gpio::GPIOLCDDisplay, esphome::lcd_menu::LCDCharacterMenuComponent, esphome::lcd_pcf8574::PCF8574LCDDisplay, esphome::ld2420::LD2420Component, esphome::ledc::LEDCOutput, esphome::libretiny_pwm::LibreTinyPWM, esphome::light::LightState, esphome::lightwaverf::LightWaveRF, esphome::lilygo_t5_47::LilygoT547Touchscreen, esphome::logger::LoggerLevelSelect, esphome::lps22::LPS22Component, esphome::ltr390::LTR390Component, esphome::ltr501::LTRAlsPs501Component, esphome::ltr_als_ps::LTRAlsPsComponent, esphome::lvgl::LvglComponent, esphome::lvgl::LVGLNumber, esphome::lvgl::LVGLSelect, esphome::lvgl::LVGLSwitch, esphome::m5stack_8angle::M5Stack8AngleComponent, esphome::m5stack_8angle::M5Stack8AngleLightOutput, esphome::matrix_keypad::MatrixKeypad, esphome::max17043::MAX17043Component, esphome::max31855::MAX31855Sensor, esphome::max31856::MAX31856Sensor, esphome::max31865::MAX31865Sensor, esphome::max44009::MAX44009Sensor, esphome::max6675::MAX6675Sensor, esphome::max6956::MAX6956, esphome::max6956::MAX6956LedChannel, esphome::max7219::MAX7219Component, esphome::max7219digit::MAX7219Component, esphome::max9611::MAX9611Component, esphome::mcp23008::MCP23008, esphome::mcp23016::MCP23016, esphome::mcp23017::MCP23017, esphome::mcp23s08::MCP23S08, esphome::mcp23s17::MCP23S17, esphome::mcp3008::MCP3008, esphome::mcp3204::MCP3204, esphome::mcp4461::Mcp4461Component, esphome::mcp4725::MCP4725, esphome::mcp4728::MCP4728Component, esphome::mcp9600::MCP9600Component, esphome::mcp9808::MCP9808Sensor, esphome::mdns::MDNSComponent, esphome::mhz19::MHZ19Component, esphome::micro_wake_word::MicroWakeWord, esphome::micronova::MicroNova, esphome::midea::ApplianceBase< T >, esphome::midea::ApplianceBase< dudanov::midea::ac::AirConditioner >, esphome::mipi_dsi::MIPI_DSI, esphome::mipi_rgb::MipiRgb, esphome::mipi_rgb::MipiRgbSpi, esphome::mipi_spi::MipiSpi< BUFFERTYPE, BUFFERPIXEL, IS_BIG_ENDIAN, DISPLAYPIXEL, BUS_TYPE, WIDTH, HEIGHT, OFFSET_WIDTH, OFFSET_HEIGHT >, esphome::mipi_spi::MipiSpiBuffer< BUFFERTYPE, BUFFERPIXEL, IS_BIG_ENDIAN, DISPLAYPIXEL, BUS_TYPE, WIDTH, HEIGHT, OFFSET_WIDTH, OFFSET_HEIGHT, ROTATION, FRACTION, ROUNDING >, esphome::mixer_speaker::MixerSpeaker, esphome::mixer_speaker::SourceSpeaker, esphome::mlx90393::MLX90393Cls, esphome::mlx90614::MLX90614Component, esphome::mmc5603::MMC5603Component, esphome::mmc5983::MMC5983Component, esphome::modbus::Modbus, esphome::modbus_controller::ModbusController, esphome::modbus_controller::ModbusSwitch, esphome::mpl3115a2::MPL3115A2Component, esphome::mpr121::MPR121Component, esphome::mpu6050::MPU6050Component, esphome::mpu6886::MPU6886Component, esphome::mqtt::MQTTAlarmControlPanelComponent, esphome::mqtt::MQTTBinarySensorComponent, esphome::mqtt::MQTTButtonComponent, esphome::mqtt::MQTTClientComponent, esphome::mqtt::MQTTClimateComponent, esphome::mqtt::MQTTCoverComponent, esphome::mqtt::MQTTDateComponent, esphome::mqtt::MQTTDateTimeComponent, esphome::mqtt::MQTTEventComponent, esphome::mqtt::MQTTFanComponent, esphome::mqtt::MQTTJSONLightComponent, esphome::mqtt::MQTTLockComponent, esphome::mqtt::MQTTMessageTrigger, esphome::mqtt::MQTTNumberComponent, esphome::mqtt::MQTTSelectComponent, esphome::mqtt::MQTTSensorComponent, esphome::mqtt::MQTTSwitchComponent, esphome::mqtt::MQTTTextComponent, esphome::mqtt::MQTTTextSensor, esphome::mqtt::MQTTTimeComponent, esphome::mqtt::MQTTUpdateComponent, esphome::mqtt::MQTTValveComponent, esphome::mqtt_subscribe::MQTTSubscribeSensor, esphome::mqtt_subscribe::MQTTSubscribeTextSensor, esphome::ms5611::MS5611Component, esphome::ms8607::MS8607Component, esphome::msa3xx::MSA3xxComponent, esphome::my9231::MY9231OutputComponent, esphome::nau7802::NAU7802Sensor, esphome::neopixelbus::NeoPixelBusLightOutputBase< T_METHOD, T_COLOR_FEATURE >, esphome::neopixelbus::NeoPixelBusLightOutputBase< T_METHOD, NeoRgbFeature >, esphome::neopixelbus::NeoPixelBusLightOutputBase< T_METHOD, NeoRgbwFeature >, esphome::nextion::Nextion, esphome::nfc::NfcTagBinarySensor, esphome::noblex::NoblexClimate, esphome::npi19::NPI19Component, esphome::nrf52::DeviceFirmwareUpdate, esphome::ntc::NTC, esphome::number::ValueRangeTrigger, esphome::opentherm::OpenthermHub, esphome::opentherm::OpenthermNumber, esphome::opentherm::OpenthermSwitch, esphome::openthread::OpenThreadComponent, esphome::openthread::OpenThreadSrpComponent, esphome::output::OutputSwitch, esphome::packet_transport::PacketTransport, esphome::pca6416a::PCA6416AComponent, esphome::pca9554::PCA9554Component, esphome::pca9685::PCA9685Output, esphome::pcd8544::PCD8544, esphome::pcf85063::PCF85063Component, esphome::pcf8563::PCF8563Component, esphome::pcf8574::PCF8574Component, esphome::pi4ioe5v6408::PI4IOE5V6408Component, esphome::pid::PIDClimate, esphome::pid::PIDClimateSensor, esphome::pid::PIDSimulator, esphome::pm1006::PM1006Component, esphome::pm2005::PM2005Component, esphome::pmsa003i::PMSA003IComponent, esphome::pmsx003::PMSX003Component, esphome::pn532::PN532, esphome::pn532_spi::PN532Spi, esphome::pn7150::PN7150, esphome::pn7160::PN7160, esphome::pn7160_spi::PN7160Spi, esphome::power_supply::PowerSupply, esphome::preferences::IntervalSyncer, esphome::ProjectUpdateTrigger, esphome::prometheus::PrometheusHandler, esphome::pulse_counter::PulseCounterSensor, esphome::pulse_meter::PulseMeterSensor, esphome::pulse_width::PulseWidthSensor, esphome::pylontech::PylontechComponent, esphome::pzem004t::PZEM004T, esphome::qmc5883l::QMC5883LComponent, esphome::qmp6988::QMP6988Component, esphome::qspi_dbi::QspiDbi, esphome::qwiic_pir::QwiicPIRComponent, esphome::rc522::RC522, esphome::rc522_spi::RC522Spi, esphome::rd03d::RD03DComponent, esphome::remote_receiver::RemoteReceiverComponent, esphome::remote_transmitter::RemoteTransmitterComponent, esphome::resampler::ResamplerSpeaker, esphome::resistance::ResistanceSensor, esphome::rotary_encoder::RotaryEncoderSensor, esphome::rp2040_pio_led_strip::RP2040PIOLEDStripLightOutput, esphome::rp2040_pwm::RP2040PWM, esphome::rpi_dpi_rgb::RpiDpiRgb, esphome::rx8130::RX8130Component, esphome::scd30::SCD30Component, esphome::scd4x::SCD4XComponent, esphome::script::ScriptWaitAction< C, Ts >, esphome::sdl::Sdl, esphome::sdl::SdlTouchscreen, esphome::sdp3x::SDP3XComponent, esphome::sds011::SDS011Component, esphome::seeed_mr24hpc1::MR24HPC1Component, esphome::seeed_mr60fda2::MR60FDA2Component, esphome::sen0321_sensor::Sen0321Sensor, esphome::sen5x::SEN5XComponent, esphome::sensor::HeartbeatFilter, esphome::sensor::ThrottleAverageFilter, esphome::sensor::ValueRangeTrigger, esphome::servo::Servo, esphome::sfa30::SFA30Component, esphome::sgp30::SGP30Component, esphome::sgp4x::SGP4xComponent, esphome::shelly_dimmer::ShellyDimmer, esphome::sht3xd::SHT3XDComponent, esphome::sht4x::SHT4XComponent, esphome::shtcx::SHTCXComponent, esphome::sigma_delta_output::SigmaDeltaOutput, esphome::slow_pwm::SlowPWMOutput, esphome::sm10bit_base::Sm10BitBase, esphome::sm16716::SM16716, esphome::sm2135::SM2135, esphome::sm2235::SM2235, esphome::sm2335::SM2335, esphome::sn74hc165::SN74HC165Component, esphome::sn74hc595::SN74HC595Component, esphome::sn74hc595::SN74HC595GPIOComponent, esphome::sn74hc595::SN74HC595SPIComponent, esphome::sntp::SNTPComponent, esphome::sonoff_d1::SonoffD1Output, esphome::sound_level::SoundLevelComponent, esphome::speaker::SpeakerMediaPlayer, esphome::speed::SpeedFan, esphome::spi::SPIComponent, esphome::spi_device::SPIDeviceComponent, esphome::spi_led_strip::SpiLedStrip, esphome::sprinkler::Sprinkler, esphome::sprinkler::SprinklerControllerNumber, esphome::sprinkler::SprinklerControllerSwitch, esphome::sps30::SPS30Component, esphome::ssd1306_base::SSD1306, esphome::ssd1306_i2c::I2CSSD1306, esphome::ssd1306_spi::SPISSD1306, esphome::ssd1322_base::SSD1322, esphome::ssd1322_spi::SPISSD1322, esphome::ssd1325_base::SSD1325, esphome::ssd1325_spi::SPISSD1325, esphome::ssd1327_base::SSD1327, esphome::ssd1327_i2c::I2CSSD1327, esphome::ssd1327_spi::SPISSD1327, esphome::ssd1331_base::SSD1331, esphome::ssd1331_spi::SPISSD1331, esphome::ssd1351_base::SSD1351, esphome::ssd1351_spi::SPISSD1351, esphome::st7567_base::ST7567, esphome::st7567_i2c::I2CST7567, esphome::st7567_spi::SPIST7567, esphome::st7701s::ST7701S, esphome::st7735::ST7735, esphome::st7789v::ST7789V, esphome::st7920::ST7920, esphome::StartupTrigger, esphome::statsd::StatsdComponent, esphome::status::StatusBinarySensor, esphome::status_led::StatusLEDLightOutput, esphome::sts3x::STS3XComponent, esphome::stts22h::STTS22HComponent, esphome::sun_gtil2::SunGTIL2, esphome::switch_::SwitchBinarySensor, esphome::sx126x::SX126x, esphome::sx126x::SX126xTransport, esphome::sx127x::SX127x, esphome::sx127x::SX127xTransport, esphome::sx1509::SX1509Component, esphome::sx1509::SX1509FloatOutputChannel, esphome::sy6970::SY6970Component, esphome::syslog::Syslog, esphome::tc74::TC74Component, esphome::tca9548a::TCA9548AComponent, esphome::tca9555::TCA9555Component, esphome::tcs34725::TCS34725Component, esphome::tee501::TEE501Component, esphome::teleinfo::TeleInfo, esphome::tem3200::TEM3200Component, esphome::template_::TemplateAlarmControlPanel, esphome::template_::TemplateBinarySensor, esphome::template_::TemplateCover, esphome::template_::TemplateDate, esphome::template_::TemplateDateTime, esphome::template_::TemplateFan, esphome::template_::TemplateLock, esphome::template_::TemplateNumber, esphome::template_::TemplateSelect< HAS_LAMBDA, OPTIMISTIC, RESTORE_VALUE, INITIAL_OPTION_INDEX >, esphome::template_::TemplateSwitch, esphome::template_::TemplateText, esphome::template_::TemplateTime, esphome::template_::TemplateValve, esphome::template_::TemplateWaterHeater, esphome::thermostat::ThermostatClimate, esphome::time_based::TimeBasedCover, esphome::tinyusb::TinyUSB, esphome::tlc59208f::TLC59208FOutput, esphome::tlc5947::TLC5947, esphome::tlc5971::TLC5971, esphome::tm1621::TM1621Display, esphome::tm1637::TM1637Display, esphome::tm1638::TM1638Component, esphome::tm1651::TM1651Display, esphome::tmp1075::TMP1075Sensor, esphome::tmp117::TMP117Component, esphome::tof10120::TOF10120Sensor, esphome::tormatic::Tormatic, esphome::toshiba::ToshibaClimate, esphome::total_daily_energy::TotalDailyEnergy, esphome::touchscreen::TouchscreenBinarySensor, esphome::tsl2561::TSL2561Sensor, esphome::tsl2591::TSL2591Component, esphome::tt21100::TT21100Button, esphome::tt21100::TT21100Touchscreen, esphome::ttp229_bsf::TTP229BSFComponent, esphome::ttp229_lsf::TTP229LSFComponent, esphome::tuya::Tuya, esphome::tuya::TuyaBinarySensor, esphome::tuya::TuyaClimate, esphome::tuya::TuyaCover, esphome::tuya::TuyaFan, esphome::tuya::TuyaLight, esphome::tuya::TuyaNumber, esphome::tuya::TuyaSelect, esphome::tuya::TuyaSensor, esphome::tuya::TuyaSwitch, esphome::tuya::TuyaTextSensor, esphome::tx20::Tx20Component, esphome::uart::ESP8266UartComponent, esphome::uart::HostUartComponent, esphome::uart::IDFUARTComponent, esphome::uart::LibreTinyUARTComponent, esphome::uart::RP2040UartComponent, esphome::uart::UARTEvent, esphome::udp::UDPComponent, esphome::udp::UDPTransport, esphome::ufire_ec::UFireECComponent, esphome::ufire_ise::UFireISEComponent, esphome::uln2003::ULN2003, esphome::ultrasonic::UltrasonicSensorComponent, esphome::uponor_smatrix::UponorSmatrixComponent, esphome::uptime::UptimeTextSensor, esphome::uptime::UptimeTimestampSensor, esphome::usb_cdc_acm::USBCDCACMComponent, esphome::usb_host::USBClient, esphome::usb_host::USBHost, esphome::usb_uart::USBUartComponent, esphome::veml3235::VEML3235Sensor, esphome::veml7700::VEML7700Component, esphome::version::VersionTextSensor, esphome::vl53l0x::VL53L0XSensor, esphome::voice_assistant::VoiceAssistant, esphome::wake_on_lan::WakeOnLanButton, esphome::waveshare_epaper::WaveshareEPaper2P13InV3, esphome::waveshare_epaper::WaveshareEPaper7C, esphome::waveshare_epaper::WaveshareEPaperBase, esphome::web_server::WebServer, esphome::web_server::WebServerOTAComponent, esphome::weikai_i2c::WeikaiComponentI2C, esphome::weikai_spi::WeikaiComponentSPI, esphome::whirlpool::WhirlpoolClimate, esphome::wiegand::Wiegand, esphome::wifi::WiFiComponent, esphome::wifi_info::BSSIDWiFiInfo, esphome::wifi_info::DNSAddressWifiInfo, esphome::wifi_info::IPAddressWiFiInfo, esphome::wifi_info::MacAddressWifiInfo, esphome::wifi_info::PowerSaveModeWiFiInfo, esphome::wifi_info::ScanResultsWiFiInfo, esphome::wifi_info::SSIDWiFiInfo, esphome::wireguard::Wireguard, esphome::wl_134::Wl134Component, esphome::x9c::X9cOutput, esphome::xgzp68xx::XGZP68XXComponent, esphome::xl9535::XL9535Component, esphome::xpt2046::XPT2046Component, esphome::yashima::YashimaClimate, esphome::zephyr_ble_server::BLEServer, esphome::zhlt01::ZHLT01Climate, esphome::zigbee::ZigbeeBinarySensor, esphome::zigbee::ZigbeeComponent, esphome::zigbee::ZigbeeNumber, esphome::zigbee::ZigbeeSensor, esphome::zigbee::ZigbeeSwitch, esphome::zigbee::ZigbeeTime, esphome::zwave_proxy::ZWaveProxy, and esphome::zyaura::ZyAuraSensor.

Definition at line 94 of file component.cpp.

should_warn_of_blocking()

bool esphome::Component::should_warn_of_blocking

(

uint32_t

blocking_time

)

Definition at line 280 of file component.cpp.

status_clear_error()

void esphome::Component::status_clear_error

(

)

Definition at line 439 of file component.cpp.

status_clear_warning()

void esphome::Component::status_clear_warning

(

)

Definition at line 433 of file component.cpp.

status_has_error()

bool esphome::Component::status_has_error

(

)

const

Definition at line 392 of file component.cpp.

status_has_warning()

bool esphome::Component::status_has_warning

(

)

const

Definition at line 391 of file component.cpp.

status_momentary_error()

void esphome::Component::status_momentary_error	(	const char *	name,
		uint32_t	length = 5000 )

Set error status flag and automatically clear it after a timeout.

Parameters

name	Identifier for the timeout (used to cancel/replace existing timeouts with the same name). Must be a static string literal (stored in flash/rodata), not a temporary or dynamic string. This is NOT a message to display - use status_set_error() with a message if logging is needed.
length	Duration in milliseconds before the error is automatically cleared.

Definition at line 449 of file component.cpp.

status_momentary_warning()

void esphome::Component::status_momentary_warning	(	const char *	name,
		uint32_t	length = 5000 )

Set warning status flag and automatically clear it after a timeout.

Parameters

name	Identifier for the timeout (used to cancel/replace existing timeouts with the same name). Must be a static string literal (stored in flash/rodata), not a temporary or dynamic string. This is NOT a message to display - use status_set_warning() with a message if logging is needed.
length	Duration in milliseconds before the warning is automatically cleared.

Definition at line 445 of file component.cpp.

status_set_error() [1/2]

void esphome::Component::status_set_error

(

)

Definition at line 413 of file component.cpp.

status_set_error() [2/2]

void esphome::Component::status_set_error

(

const LogString *

message

)

Definition at line 423 of file component.cpp.

status_set_warning() [1/2]

void esphome::Component::status_set_warning

(

const char *

message = nullptr

)

Definition at line 401 of file component.cpp.

status_set_warning() [2/2]

void esphome::Component::status_set_warning

(

const LogString *

message

)

Definition at line 407 of file component.cpp.

teardown()

virtual bool esphome::Component::teardown ( )

inlinevirtual

Called during teardown to allow component to gracefully finish operations.

Returns

true if teardown is complete, false if more time is needed

Reimplemented in esphome::api::APIServer, and esphome::openthread::OpenThreadComponent.

Definition at line 136 of file component.h.

Field Documentation

backoff_increase_factor [1/3]

ESPDEPRECATED("set_retry is deprecated and will be removed in 2026.8.0. Use set_timeout or set_interval instead.", "2026.2.0") void set_retry(const std uint32_t uint8_t std::function<RetryResult(uint8_t)> float esphome::Component::backoff_increase_factor = 1.0f)

protected

Definition at line 387 of file component.h.

backoff_increase_factor [2/3]

uint32_t uint8_t std::function<RetryResult(uint8_t)> float esphome::Component::backoff_increase_factor = 1.0f)

protected

Definition at line 393 of file component.h.

backoff_increase_factor [3/3]

uint8_t std::function<RetryResult(uint8_t)> float esphome::Component::backoff_increase_factor = 1.0f)

protected

Definition at line 399 of file component.h.

cancel_defer

bool esphome::Component::cancel_defer

protected

Cancel a defer callback using the specified name, name must not be empty.

Definition at line 505 of file component.h.

cancel_interval

bool esphome::Component::cancel_interval

protected

Cancel an interval function.

Parameters

name	The identifier for this interval function.

Returns

Whether an interval functions was deleted.

Definition at line 372 of file component.h.

cancel_timeout

bool esphome::Component::cancel_timeout

protected

Cancel a timeout function.

Parameters

name	The identifier for this timeout function.

Returns

Whether a timeout functions was deleted.

Definition at line 465 of file component.h.

component_source_

const LogString* esphome::Component::component_source_ {nullptr}

protected

Definition at line 509 of file component.h.

component_state_

uint8_t esphome::Component::component_state_ {0x00}

protected

State of this component - each bit has a purpose: Bits 0-2: Component state (0x00=CONSTRUCTION, 0x01=SETUP, 0x02=LOOP, 0x03=FAILED, 0x04=LOOP_DONE) Bit 3: STATUS_LED_WARNING Bit 4: STATUS_LED_ERROR Bit 5: Has overridden loop() (set at registration time) Bits 6-7: Unused - reserved for future expansion.

Definition at line 517 of file component.h.

defer

void esphome::Component::defer

protected

Defer a callback to the next loop() call.

If name is specified and a defer() object with the same name exists, the old one is first removed.

Parameters

name	The name of the defer function.
f	The callback. Defer a callback to the next loop() call with a const char* name.

IMPORTANT: The provided name pointer must remain valid for the lifetime of the deferred task. This means the name should be:

• A string literal (e.g., "update")
• A static const char* variable
• A pointer with lifetime >= the deferred execution

For dynamic strings, use the std::string overload instead.

Parameters

name	The name of the defer function (must have static lifetime)
f	The callback

Definition at line 493 of file component.h.

f [1/3]

ESPDEPRECATED("set_retry is deprecated and will be removed in 2026.8.0. Use set_timeout or set_interval instead.", "2026.2.0") void set_retry(const std uint32_t uint8_t std::function<RetryResult(uint8_t)>&& esphome::Component::f

protected

Definition at line 387 of file component.h.

f [2/3]

uint32_t uint8_t std::function<RetryResult(uint8_t)>&& esphome::Component::f

protected

Definition at line 393 of file component.h.

f [3/3]

uint8_t std::function<RetryResult(uint8_t)>&& esphome::Component::f

protected

Definition at line 398 of file component.h.

initial_wait_time [1/2]

ESPDEPRECATED("set_retry is deprecated and will be removed in 2026.8.0. Use set_timeout or set_interval instead.", "2026.2.0") void set_retry(const std uint32_t esphome::Component::initial_wait_time

protected

Definition at line 386 of file component.h.

initial_wait_time [2/2]

uint32_t esphome::Component::initial_wait_time

protected

Definition at line 392 of file component.h.

max_attempts [1/3]

ESPDEPRECATED("set_retry is deprecated and will be removed in 2026.8.0. Use set_timeout or set_interval instead.", "2026.2.0") void set_retry(const std uint32_t uint8_t esphome::Component::max_attempts

protected

Definition at line 386 of file component.h.

max_attempts [2/3]

uint32_t uint8_t esphome::Component::max_attempts

protected

Definition at line 392 of file component.h.

max_attempts [3/3]

uint8_t esphome::Component::max_attempts

protected

Definition at line 398 of file component.h.

pending_enable_loop_

volatile bool esphome::Component::pending_enable_loop_ {false}

protected

ISR-safe flag for enable_loop_soon_any_context.

Definition at line 518 of file component.h.

set_interval

void esphome::Component::set_interval

protected

Set an interval function with a unique name.

Empty name means no cancelling possible.

This will call f every interval ms. Can be cancelled via CancelInterval(). Similar to javascript's setInterval().

IMPORTANT NOTE: The only guarantee offered by this call is that the callback will be called no earlier than the specified interval after the previous call. Any given interval may be longer due to other components blocking the loop() call.

So do not rely on this having correct timing. If you need exact timing please use hardware timers.

Note also that the first call to f will not happen immediately, but after a random delay. This is intended to prevent many interval functions from being called at the same time.

Parameters

name	The identifier for this interval function.
interval	The interval in ms.
f	The function (or lambda) that should be called

See also

cancel_interval() Set an interval function with a const char* name.

IMPORTANT: The provided name pointer must remain valid for the lifetime of the scheduler item. This means the name should be:

• A string literal (e.g., "update")
• A static const char* variable
• A pointer with lifetime >= the scheduled task

For dynamic strings, use the std::string overload instead.

Parameters

name	The identifier for this interval function (must have static lifetime)
interval	The interval in ms
f	The function to call

Definition at line 350 of file component.h.

set_timeout

void esphome::Component::set_timeout

protected

Set a timeout function with a unique name.

Similar to javascript's setTimeout(). Empty name means no cancelling possible.

IMPORTANT: Do not rely on this having correct timing. This is only called from loop() and therefore can be significantly delay. If you need exact timing please use hardware timers.

Parameters

name	The identifier for this timeout function.
timeout	The timeout in ms.
f	The function (or lambda) that should be called

See also

cancel_timeout() Set a timeout function with a const char* name.

IMPORTANT: The provided name pointer must remain valid for the lifetime of the scheduler item. This means the name should be:

• A string literal (e.g., "init")
• A static const char* variable
• A pointer with lifetime >= the timeout duration

For dynamic strings, use the std::string overload instead.

Parameters

name	The identifier for this timeout function (must have static lifetime)
timeout	The timeout in ms
f	The function to call

Definition at line 443 of file component.h.

warn_if_blocking_over_

uint16_t esphome::Component::warn_if_blocking_over_ {WARN_IF_BLOCKING_OVER_MS}

protected

Warn if blocked for this many ms (max 65.5s)

Definition at line 510 of file component.h.

---

The documentation for this class was generated from the following files:

• esphome/core/component.h
• esphome/core/component.cpp