ESPHome 2026.11.0-dev
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esphome::valve::Valve Class Referenceabstract

Base class for all valve devices. More...

#include <valve.h>

Inheritance diagram for esphome::valve::Valve:
esphome::EntityBase esphome::demo::DemoValve esphome::template_::TemplateValve

Public Member Functions

 Valve ()
 
ValveCall make_call ()
 Construct a new valve call used to control the valve.
 
template<typename F >
void add_on_state_callback (F &&f)
 
void publish_state (bool save=true)
 Publish the current state of the valve.
 
virtual ValveTraits get_traits ()=0
 
bool is_fully_open () const
 Helper method to check if the valve is fully open. Equivalent to comparing .position against 1.0.
 
bool is_fully_closed () const
 Helper method to check if the valve is fully closed. Equivalent to comparing .position against 0.0.
 
- Public Member Functions inherited from esphome::EntityBase
 ESPDEPRECATED ("Use get_name_to() or get_log_name() instead. Will be removed in ESPHome 2027.5.0", "2026.11.0") const StringRef &get_name() const
 The name is in flash here; the first call makes a RAM copy that is kept for the life of the device.
 
StringRef get_name_to (std::span< char, ENTITY_NAME_BUF_SIZE > buffer) const
 Get the name of this Entity, copied out of flash into buffer.
 
 ESPDEPRECATED ("Use get_name_to() or get_log_name() instead. Will be removed in ESPHome 2027.5.0", "2026.11.0") const StringRef &get_name() const
 
const StringRef & get_name_to (std::span< char, ENTITY_NAME_BUF_SIZE >) const
 
bool name_equals (const StringRef &other) const
 
const ProgmemStringRef & get_name_progmem () const
 The name as stored, for consumers that read flash themselves (e.g. API progmem fields).
 
size_t write_name_to (char *buf, size_t buf_size) const
 Copy the name into buf (null terminated), returns its length.
 
const LogString * get_log_name () const
 Get the name for a "%s" log argument (LOG_STR_ARG).
 
bool has_own_name () const
 
uint32_t get_object_id_hash () const
 
StringRef get_object_id_to (std::span< char, OBJECT_ID_MAX_LEN > buf) const
 Get object_id with zero heap allocation For static case: returns StringRef to internal storage (buffer unused) For dynamic case: formats into buffer and returns StringRef to buffer.
 
size_t write_object_id_to (char *buf, size_t buf_size) const
 Write object_id directly to buffer, returns length written (excluding null) Useful for building compound strings without intermediate buffer.
 
bool is_internal () const
 
void set_internal (bool internal)
 
bool is_disabled_by_default () const
 
EntityCategory get_entity_category () const
 
const char * get_device_class_to (std::span< char, MAX_DEVICE_CLASS_LENGTH > buffer) const
 
ProgmemStringRef get_device_class_progmem () const
 The device class as stored (in flash on ESP8266), for consumers that read flash themselves.
 
StringRef get_unit_of_measurement_ref () const
 
const char * get_icon_to (std::span< char, MAX_ICON_LENGTH > buffer) const
 
ProgmemStringRef get_icon_progmem () const
 The icon as stored (in flash on ESP8266), for consumers that read flash themselves.
 
uint32_t get_device_id () const
 
Device * get_device () const
 
bool has_state () const
 
void set_has_state (bool state)
 
 ESPDEPRECATED ("Use make_entity_preference<T>() instead, or preferences won't be migrated. " "See https://github.com/esphome/backlog/issues/85. Will be removed in 2027.1.0.", "2026.7.0") uint32_t get_preference_hash()
 Get a unique hash for storing preferences/settings for this entity.
 
template<typename T >
ESPPreferenceObject make_entity_preference (uint32_t version=0)
 Create a preference object for storing this entity's state/settings.
 
template<typename T >
ESPPreferenceObject make_entity_preference (uint32_t version, bool in_flash)
 As make_entity_preference(), stored in flash or RTC memory where the backend supports the choice.
 

Data Fields

ValveOperation current_operation {VALVE_OPERATION_IDLE}
 The current operation of the valve (idle, opening, closing).
 
float position
 The position of the valve from 0.0 (fully closed) to 1.0 (fully open).
 

Protected Member Functions

virtual void control (const ValveCall &call)=0
 
optional< ValveRestoreState > restore_state_ ()
 
- Protected Member Functions inherited from esphome::EntityBase
friend void::setup ()
 
friend void::original_setup ()
 
void configure_entity_ (const char *name, uint32_t object_id_hash, uint32_t entity_fields)
 Combined entity setup from codegen: set name, object_id hash, entity string indices, and flags.
 
void set_device_ (Device *device)
 
ESPPreferenceObject make_entity_preference_ (size_t size, uint32_t version)
 Non-template helpers for make_entity_preference() to avoid code bloat.
 
ESPPreferenceObject make_entity_preference_ (size_t size, uint32_t version, bool in_flash)
 
uint32_t entity_preference_key_ (uint32_t version)
 Key for both helpers; preference hash migration goes here.
 

Protected Attributes

friend ValveCall
 
LazyCallbackManager< void()> state_callback_ {}
 
ESPPreferenceObject rtc_
 
- Protected Attributes inherited from esphome::EntityBase
ProgmemStringRef name_
 
uint32_t object_id_hash_ {}
 
Device * device_ {}
 
struct esphome::EntityBase::EntityFlags flags_
 
uint8_t device_class_idx_ {}
 
uint8_t uom_idx_ {}
 
uint8_t icon_idx_ {}
 

Detailed Description

Base class for all valve devices.

Valves currently have three properties:

  • position - The current position of the valve from 0.0 (fully closed) to 1.0 (fully open). For valves with only binary OPEN/CLOSED position this will always be either 0.0 or 1.0
  • current_operation - The operation the valve is currently performing, this can be one of IDLE, OPENING and CLOSING.

For users: All valve operations must be performed over the .make_call() interface. To command a valve, use .make_call() to create a call object, set all properties you wish to set, and activate the command with .perform(). For reading out the current values of the valve, use the public .position, etc. properties (these are read-only for users)

For integrations: Integrations must implement two methods: control() and get_traits(). Control will be called with the arguments supplied by the user and should be used to control all values of the valve. Also implement get_traits() to return what operations the valve supports.

Definition at line 102 of file valve.h.

Constructor & Destructor Documentation

◆ Valve()

esphome::valve::Valve::Valve ( )
explicit

Definition at line 32 of file valve.cpp.

Member Function Documentation

◆ add_on_state_callback()

template<typename F >
void esphome::valve::Valve::add_on_state_callback ( F && f)
inline

Definition at line 118 of file valve.h.

◆ control()

virtual void esphome::valve::Valve::control ( const ValveCall & call)
protectedpure virtual

◆ get_traits()

virtual ValveTraits esphome::valve::Valve::get_traits ( )
pure virtual

◆ is_fully_closed()

bool esphome::valve::Valve::is_fully_closed ( ) const
inline

Helper method to check if the valve is fully closed. Equivalent to comparing .position against 0.0.

Definition at line 134 of file valve.h.

◆ is_fully_open()

bool esphome::valve::Valve::is_fully_open ( ) const
inline

Helper method to check if the valve is fully open. Equivalent to comparing .position against 1.0.

Definition at line 132 of file valve.h.

◆ make_call()

ValveCall esphome::valve::Valve::make_call ( )
inline

Construct a new valve call used to control the valve.

Definition at line 116 of file valve.h.

◆ publish_state()

void esphome::valve::Valve::publish_state ( bool save = true)

Publish the current state of the valve.

First set the .position, etc. values and then call this method to publish the state of the valve.

Parameters
saveWhether to save the updated values in RTC area.

Definition at line 125 of file valve.cpp.

◆ restore_state_()

optional< ValveRestoreState > esphome::valve::Valve::restore_state_ ( )
protected

Definition at line 155 of file valve.cpp.

Field Documentation

◆ current_operation

ValveOperation esphome::valve::Valve::current_operation {VALVE_OPERATION_IDLE}

The current operation of the valve (idle, opening, closing).

Definition at line 107 of file valve.h.

◆ position

float esphome::valve::Valve::position

The position of the valve from 0.0 (fully closed) to 1.0 (fully open).

For binary valves this is always equals to 0.0 or 1.0 (see also VALVE_OPEN and VALVE_CLOSED constants).

Definition at line 113 of file valve.h.

◆ rtc_

ESPPreferenceObject esphome::valve::Valve::rtc_
protected

Definition at line 145 of file valve.h.

◆ state_callback_

LazyCallbackManager<void()> esphome::valve::Valve::state_callback_ {}
protected

Definition at line 143 of file valve.h.

◆ ValveCall

friend esphome::valve::Valve::ValveCall
protected

Definition at line 137 of file valve.h.


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