Here is a list of all variables with links to the structures/unions they belong to:

- f -

• f1_ : esphome::as7341::AS7341Component
• f2_ : esphome::as7341::AS7341Component
• f3_ : esphome::as7341::AS7341Component
• f4_ : esphome::as7341::AS7341Component
• f5_ : esphome::as7341::AS7341Component
• f6_ : esphome::as7341::AS7341Component
• f7_ : esphome::as7341::AS7341Component
• f8_ : esphome::as7341::AS7341Component
• f_ : esphome::binary_sensor::LambdaFilter, esphome::LambdaAction< Ts >, esphome::LambdaCondition< Ts >, esphome::light::AddressableLambdaLightEffect, esphome::light::LambdaLightEffect, esphome::sprinkler::SprinklerControllerSwitch, esphome::TemplatableValue< T, X >, esphome::template_::TemplateBinarySensor, esphome::template_::TemplateDate, esphome::template_::TemplateDateTime, esphome::template_::TemplateLock, esphome::template_::TemplateNumber, esphome::template_::TemplateSelect, esphome::template_::TemplateSensor, esphome::template_::TemplateSwitch, esphome::template_::TemplateText, esphome::template_::TemplateTextSensor, esphome::template_::TemplateTime
• facility_ : esphome::syslog::Syslog
• factory_reset_button_ : esphome::ld2420::LD2420Component
• fade_out_rate_ : esphome::light::AddressableFireworksEffect
• fade_rate_ : esphome::shelly_dimmer::ShellyDimmer
• fahrenheit_ : esphome::anova::Anova, esphome::anova::AnovaCodec, esphome::daikin_brc::DaikinBrcClimate, esphome::midea_ir::MideaIR, esphome::tm1621::TM1621Display, esphome::whynter::Whynter
• fail_count_ : esphome::pn7150::PN7150, esphome::pn7160::PN7160
• fake_infrared_lux : esphome::veml7700::VEML7700Component::Readings
• fake_infrared_sensor_ : esphome::veml7700::VEML7700Component
• falling_edge_mode : esphome::pulse_counter::PulseCounterStorageBase
• fan_interval_ : esphome::sps30::SPS30Component
• fan_mode : esphome::api::ClimateCommandRequest, esphome::api::ClimateStateResponse, esphome::climate::Climate, esphome::climate::ClimateDeviceRestoreState, esphome::haier::HaierClimateBase::HvacSettings, esphome::haier::hon_protocol::HaierPacketControl, esphome::haier::smartair2_protocol::HaierPacketControl
• fan_mode_ : esphome::climate::ClimateCall, esphome::mitsubishi::MitsubishiClimate, esphome::thermostat::ThermostatClimateTargetTempConfig
• fan_mode_auto_trigger_ : esphome::thermostat::ThermostatClimate
• fan_mode_diffuse_trigger_ : esphome::thermostat::ThermostatClimate
• fan_mode_focus_trigger_ : esphome::thermostat::ThermostatClimate
• fan_mode_high_trigger_ : esphome::thermostat::ThermostatClimate
• fan_mode_low_trigger_ : esphome::thermostat::ThermostatClimate
• fan_mode_medium_trigger_ : esphome::thermostat::ThermostatClimate
• fan_mode_middle_trigger_ : esphome::thermostat::ThermostatClimate
• fan_mode_off_trigger_ : esphome::thermostat::ThermostatClimate
• fan_mode_on_trigger_ : esphome::thermostat::ThermostatClimate
• fan_mode_quiet_trigger_ : esphome::thermostat::ThermostatClimate
• fan_mode_speed_ : esphome::haier::HaierClimateBase
• fan_modes_ : esphome::climate_ir::ClimateIR
• fan_on_time_ : esphome::pmsx003::PMSX003Component
• fan_only_action_trigger_ : esphome::thermostat::ThermostatClimate
• fan_only_mode_trigger_ : esphome::thermostat::ThermostatClimate
• fan_pos : esphome::emmeti::EmmetiState
• fan_speed : esphome::emmeti::EmmetiState
• fan_speed_auto_value_ : esphome::tuya::TuyaClimate
• fan_speed_high_value_ : esphome::tuya::TuyaClimate
• fan_speed_id_ : esphome::tuya::TuyaClimate
• fan_speed_low_value_ : esphome::tuya::TuyaClimate
• fan_speed_medium_value_ : esphome::tuya::TuyaClimate
• fan_speed_middle_value_ : esphome::tuya::TuyaClimate
• fan_speed_offset_ : esphome::micronova::MicroNovaSensor
• fan_state_ : esphome::tuya::TuyaClimate
• fan_step : esphome::bedjet::BedjetStatusPacket
• FanCall : esphome::fan::Fan
• fans_ : esphome::Application
• fast_connect_ : esphome::wifi::WiFiComponent
• fast_connect_pref_ : esphome::wifi::WiFiComponent
• fast_filter_ : esphome::as5600::AS5600Component
• fast_mode : esphome::haier::hon_protocol::HaierPacketControl
• faults : esphome::tmp1075::TMP1075Config
• fbcount_ : esphome::vbus::VBus
• fbytes_ : esphome::vbus::VBus
• fd_ : esphome::web_server_idf::AsyncEventSourceResponse
• features_step_size_ : esphome::micro_wake_word::MicroWakeWord
• featureset_ : esphome::sgp30::SGP30Component, esphome::sgp4x::SGP4xComponent
• ffull_int : esphome::bmp3xx_base::BMP3XXComponent
• fields : esphome::tmp1075::TMP1075Config
• fifo_full : esphome::bmp581::BMP581Component
• fifo_full_en : esphome::bmp581::BMP581Component
• fifo_sel_iir_p : esphome::bmp581::BMP581Component
• fifo_sel_iir_t : esphome::bmp581::BMP581Component
• fifo_ths : esphome::bmp581::BMP581Component
• fifo_ths_en : esphome::bmp581::BMP581Component
• file : esphome::speaker::MediaCallCommand, esphome::speaker::PlaylistItem
• file_current_ : esphome::audio::AudioReader
• file_descriptor_ : esphome::uart::HostUartComponent
• file_ring_buffer_ : esphome::audio::AudioReader
• file_type : esphome::audio::AudioFile, esphome::speaker::InfoErrorEvent
• filename_ : esphome::host::HostPreferences
• filter_ : esphome::max31856::MAX31856Sensor, esphome::max31865::MAX31865Sensor, esphome::mlx90393::MLX90393Cls
• filter_list_ : esphome::binary_sensor::BinarySensor, esphome::sensor::Sensor, esphome::text_sensor::TextSensor
• filter_mode_ : esphome::esp32_touch::ESP32TouchComponent, esphome::pulse_meter::PulseMeterSensor
• filter_symbols : esphome::remote_receiver::RemoteReceiverComponentStore
• filter_symbols_ : esphome::remote_receiver::RemoteReceiverComponent
• filter_us : esphome::pulse_counter::PulseCounterStorageBase, esphome::remote_receiver::RemoteReceiverComponentStore
• filter_us_ : esphome::pulse_meter::PulseMeterSensor, esphome::remote_receiver::RemoteReceiverComponent
• filters_ : esphome::resampler::ResamplerSpeaker, esphome::sensor::OrFilter
• final_range : esphome::vl53l0x::SequenceStepEnables
• final_range_mclks : esphome::vl53l0x::SequenceStepTimeouts
• final_range_us : esphome::vl53l0x::SequenceStepTimeouts
• final_range_vcsel_period_pclks : esphome::vl53l0x::SequenceStepTimeouts
• finger_scan_invalid_callback_ : esphome::fingerprint_grow::FingerprintGrowComponent
• finger_scan_matched_callback_ : esphome::fingerprint_grow::FingerprintGrowComponent
• finger_scan_misplaced_callback_ : esphome::fingerprint_grow::FingerprintGrowComponent
• finger_scan_start_callback_ : esphome::fingerprint_grow::FingerprintGrowComponent
• finger_scan_unmatched_callback_ : esphome::fingerprint_grow::FingerprintGrowComponent
• fingerprint_count_sensor_ : esphome::fingerprint_grow::FingerprintGrowComponent
• firmware_url : esphome::update::UpdateInfo
• firmware_ver_build_ : esphome::ens160_base::ENS160Component
• firmware_ver_major_ : esphome::ens160_base::ENS160Component
• firmware_ver_minor_ : esphome::ens160_base::ENS160Component
• firmware_version_ : esphome::nextion::Nextion, esphome::sen5x::SEN5XComponent
• first : esphome::remote_base::CoolixData
• first_error_ : esphome::uart::HostUartComponent
• first_read : esphome::rotary_encoder::RotaryEncoderSensorStore
• first_status_log_ : esphome::gcja5::GCJA5Component
• first_touch_ : esphome::touchscreen::Touchscreen
• first_universe_ : esphome::e131::E131AddressableLightEffect
• first_value_ : esphome::sensor::ExponentialMovingAverageFilter
• fixed_height_ : esphome::online_image::OnlineImage
• fixed_width_ : esphome::online_image::OnlineImage
• flac_decoder_ : esphome::audio::AudioDecoder
• flags : esphome::api::SubscribeBluetoothLEAdvertisementsRequest, esphome::api::SubscribeVoiceAssistantRequest, esphome::api::VoiceAssistantRequest, esphome::template_::SensorInfo
• flags_ : esphome::ch422g::CH422GGPIOPin, esphome::esp32::ESP32InternalGPIOPin, esphome::esp8266::ESP8266GPIOPin, esphome::host::HostGPIOPin, esphome::libretiny::ArduinoInternalGPIOPin, esphome::max6956::MAX6956GPIOPin, esphome::mcp23016::MCP23016GPIOPin, esphome::mcp23xxx_base::MCP23XXXGPIOPin, esphome::mpr121::MPR121GPIOPin, esphome::pca6416a::PCA6416AGPIOPin, esphome::pca9554::PCA9554GPIOPin, esphome::pcf8574::PCF8574GPIOPin, esphome::rp2040::RP2040GPIOPin, esphome::sx1509::SX1509GPIOPin, esphome::tca9555::TCA9555GPIOPin, esphome::weikai::WeikaiGPIOPin, esphome::xl9535::XL9535GPIOPin
• flags_packed : esphome::bedjet::BedjetStatusPacket
• flash_length : esphome::api::LightCommandRequest
• flash_length_ : esphome::light::LightCall
• flash_size_ : esphome::nextion::Nextion
• flash_transition_length_ : esphome::light::LightState
• flip_x_ : esphome::max7219digit::MAX7219Component, esphome::ssd1306_base::SSD1306
• flip_y_ : esphome::ssd1306_base::SSD1306
• float_ : esphome::api::ExecuteServiceArgument
• float_array : esphome::api::ExecuteServiceArgument
• flow_control_pin_ : esphome::modbus::Modbus
• flow_rate_sensor_ : esphome::vbus::DeltaSolCSPlusSensor
• flow_sensor_ : esphome::alpha3::Alpha3, esphome::kamstrup_kmp::KamstrupKMPComponent
• focus_marks_ : esphome::lvgl::LvglComponent
• follow_redirects_ : esphome::http_request::HttpRequestComponent
• Font : esphome::font::Glyph
• font_ : esphome::graphical_display_menu::GraphicalDisplayMenu, esphome::lvgl::FontEngine
• font_id_ : esphome::nextion::NextionComponent
• font_id_is_set_ : esphome::nextion::NextionComponent
• font_id_needs_update_ : esphome::nextion::NextionComponent
• font_label_ : esphome::graph::GraphLegend
• font_value_ : esphome::graph::GraphLegend
• footer : esphome::ld2420::LD2420Component::CmdFrameT
• footer_found_ : esphome::dsmr::Dsmr
• for_direction_ : esphome::uart::UARTDebugger
• force_new_range : esphome::modbus_controller::SensorItem
• force_refresh_ : esphome::bedjet::BedJetHub
• force_send_control_ : esphome::haier::HaierClimateBase
• force_update : esphome::api::ListEntitiesSensorResponse
• force_update_ : esphome::sensor::Sensor
• forced_request_status_ : esphome::haier::HaierClimateBase
• foreground_color_ : esphome::graphical_display_menu::GraphicalDisplayMenu
• formaldehyde : esphome::xiaomi_ble::XiaomiParseResult
• formaldehyde_ : esphome::xiaomi_jqjcy01ym::XiaomiJQJCY01YM
• formaldehyde_sensor_ : esphome::pmsx003::PMSX003Component, esphome::sfa30::SFA30Component, esphome::sm300d2::SM300D2Sensor
• format : esphome::api::MediaPlayerSupportedFormat, esphome::media_player::MediaPlayerSupportedFormat
• format_ : esphome::display_menu_base::MenuItemNumber, esphome::online_image::OnlineImage, esphome::sml::SmlTextSensor, esphome::sun::SunTextSensor
• forward_active_energy : esphome::ade7880::PowerChannel
• forward_active_energy_ : esphome::atm90e32::ATM90E32Component::ATM90E32Phase
• forward_active_energy_sensor_ : esphome::atm90e26::ATM90E26Component, esphome::atm90e32::ATM90E32Component::ATM90E32Phase
• forward_active_energy_total : esphome::ade7880::PowerChannel
• forward_direction_ : esphome::hbridge::HBridgeLightOutput
• found_ : esphome::ble_presence::BLEPresenceDevice, esphome::ble_rssi::BLERSSISensor, esphome::pn532::PN532BinarySensor, esphome::rc522::RC522BinarySensor
• four_way_valve_status : esphome::haier::hon_protocol::HaierPacketBigData
• fragmentation_sensor_ : esphome::debug::DebugComponent
• frame_ : esphome::adalight::AdalightLightEffect
• frame_footer_size_ : esphome::api::APIFrameHelper
• frame_header : esphome::bl0939::DataPacket, esphome::bl0940::DataPacket, esphome::bl0942::DataPacket
• frame_header_padding_ : esphome::api::APIFrameHelper
• framebuffer_get_queue_ : esphome::esp32_camera::ESP32Camera
• framebuffer_return_queue_ : esphome::esp32_camera::ESP32Camera
• framelen : esphome::pmsa003i::PM25AQIData
• frames_ : esphome::vbus::VBus
• free : esphome::api::BluetoothConnectionsFreeResponse
• free_buffer_required_ : esphome::audio::AudioDecoder
• free_heap_ : esphome::debug::DebugComponent
• free_sensor_ : esphome::debug::DebugComponent
• freefall_interrupt : esphome::msa3xx::RegMotionInterrupt
• freefall_trigger_ : esphome::msa3xx::MSA3xxComponent
• FREEZE_PROTECTION : esphome::midea::ac::Constants
• freq_ : esphome::at581x::AT581XComponent
• freq_sensor_ : esphome::atm90e26::ATM90E26Component, esphome::atm90e32::ATM90E32Component
• freq_status_text_sensor_ : esphome::atm90e32::ATM90E32Component
• frequency : esphome::bl0942::DataPacket, esphome::cse7761::CSE7761DataStruct
• frequency_ : esphome::ade7880::ADE7880, esphome::esp8266_pwm::ESP8266PWM, esphome::i2c::ArduinoI2CBus, esphome::i2c::IDFI2CBus, esphome::ledc::LEDCOutput, esphome::libretiny_pwm::LibreTinyPWM, esphome::pca9685::PCA9685Output, esphome::remote_base::CanalSatBaseProtocol, esphome::rp2040_pwm::RP2040PWM, esphome::sx1509::SX1509Component
• frequency_changed_ : esphome::rp2040_pwm::RP2040PWM
• frequency_detector_ : esphome::pid::PIDAutotuner
• frequency_output : esphome::pcf8563::PCF8563Component::PCF8563Reg
• frequency_sensor_ : esphome::ade7953_base::ADE7953, esphome::bl0942::BL0942, esphome::havells_solar::HavellsSolar, esphome::pzemac::PZEMAC, esphome::sdm_meter::SDMMeter
• fresh_air_status : esphome::haier::hon_protocol::HaierPacketControl
• friendly_name : esphome::api::DeviceInfoResponse
• friendly_name_ : esphome::Application
• from_ : esphome::display::DisplayOnPageChangeTrigger
• from_strings_ : esphome::text_sensor::SubstituteFilter
• front_ : esphome::dfrobot_sen0395::CircularCommandQueue
• frontend_config_ : esphome::micro_wake_word::MicroWakeWord
• frontend_state_ : esphome::micro_wake_word::MicroWakeWord
• frost_protection_active_bsensor_ : esphome::vbus::DeltaSolBS2009BSensor
• fs_mode : esphome::es8311::ES8311Coefficient
• full_loop_is_okay_ : esphome::ina2xx_base::INA2XX
• full_mm_ : esphome::mopeka_pro_check::MopekaProCheck, esphome::mopeka_std_check::MopekaStdCheck
• full_refresh_ : esphome::lvgl::LvglComponent
• full_scale_ : esphome::dac7678::DAC7678Channel
• full_spectrum_counts_sensor_ : esphome::ltr501::LTRAlsPs501Component, esphome::ltr_als_ps::LTRAlsPsComponent
• full_spectrum_sensor_ : esphome::tsl2591::TSL2591Component
• full_update_every_ : esphome::inkplate6::Inkplate6, esphome::waveshare_epaper::GDEY042T81, esphome::waveshare_epaper::WaveshareEPaper2P13InDKE, esphome::waveshare_epaper::WaveshareEPaper2P13InV3, esphome::waveshare_epaper::WaveshareEPaper2P9InDKE, esphome::waveshare_epaper::WaveshareEPaper2P9InV2R2, esphome::waveshare_epaper::WaveshareEPaper7P5InV2P, esphome::waveshare_epaper::WaveshareEPaperTypeA
• func : esphome::sprinkler::SprinklerTimer, esphome::thermostat::ThermostatClimateTimer
• func_ : esphome::duty_time_sensor::DutyTimeSensor
• function_ : esphome::micronova::MicroNovaBaseListener
• function_code : esphome::modbus_controller::ModbusCommandItem
• functions : esphome::haier::hon_protocol::DeviceVersionAnswer
• functions_ : esphome::haier::HonClimate::HardwareInfo
• fw_version_ : esphome::m5stack_8angle::M5Stack8AngleComponent
• fw_version_text_sensor_ : esphome::ld2420::LD2420TextSensor
• fwm_int : esphome::bmp3xx_base::BMP3XXComponent