ESPHome
2024.12.4
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#include <pca9554.h>
Public Member Functions | |
PCA9554Component ()=default | |
void | setup () override |
Check i2c availability and setup masks. More... | |
void | loop () override |
Poll for input changes periodically. More... | |
bool | digital_read (uint8_t pin) |
Helper function to read the value of a pin. More... | |
void | digital_write (uint8_t pin, bool value) |
Helper function to write the value of a pin. More... | |
void | pin_mode (uint8_t pin, gpio::Flags flags) |
Helper function to set the pin mode of a pin. More... | |
float | get_setup_priority () const override |
float | get_loop_priority () const override |
void | dump_config () override |
void | set_pin_count (size_t pin_count) |
Public Member Functions inherited from esphome::Component | |
float | get_actual_setup_priority () const |
void | set_setup_priority (float priority) |
void | call () |
virtual void | on_shutdown () |
virtual void | on_safe_shutdown () |
uint32_t | get_component_state () const |
virtual void | mark_failed () |
Mark this component as failed. More... | |
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="unspecified") |
void | status_set_error (const char *message="unspecified") |
void | status_clear_warning () |
void | status_clear_error () |
void | status_momentary_warning (const std::string &name, uint32_t length=5000) |
void | status_momentary_error (const std::string &name, uint32_t length=5000) |
bool | has_overridden_loop () const |
void | set_component_source (const char *source) |
Set where this component was loaded from for some debug messages. More... | |
const char * | get_component_source () const |
Get the integration where this component was declared as a string. More... | |
Public Member Functions inherited from esphome::i2c::I2CDevice | |
I2CDevice ()=default | |
we use the C++ default constructor More... | |
void | set_i2c_address (uint8_t address) |
We store the address of the device on the bus. More... | |
void | set_i2c_bus (I2CBus *bus) |
we store the pointer to the I2CBus to use More... | |
I2CRegister | reg (uint8_t a_register) |
calls the I2CRegister constructor More... | |
I2CRegister16 | reg16 (uint16_t a_register) |
calls the I2CRegister16 constructor More... | |
ErrorCode | read (uint8_t *data, size_t len) |
reads an array of bytes from the device using an I2CBus More... | |
ErrorCode | read_register (uint8_t a_register, uint8_t *data, size_t len, bool stop=true) |
reads an array of bytes from a specific register in the I²C device More... | |
ErrorCode | read_register16 (uint16_t a_register, uint8_t *data, size_t len, bool stop=true) |
reads an array of bytes from a specific register in the I²C device More... | |
ErrorCode | write (const uint8_t *data, size_t len, bool stop=true) |
writes an array of bytes to a device using an I2CBus More... | |
ErrorCode | write_register (uint8_t a_register, const uint8_t *data, size_t len, bool stop=true) |
writes an array of bytes to a specific register in the I²C device More... | |
ErrorCode | write_register16 (uint16_t a_register, const uint8_t *data, size_t len, bool stop=true) |
write an array of bytes to a specific register in the I²C device More... | |
bool | read_bytes (uint8_t a_register, uint8_t *data, uint8_t len) |
Compat APIs All methods below have been added for compatibility reasons. More... | |
bool | read_bytes_raw (uint8_t *data, uint8_t len) |
template<size_t N> | |
optional< std::array< uint8_t, N > > | read_bytes (uint8_t a_register) |
template<size_t N> | |
optional< std::array< uint8_t, N > > | read_bytes_raw () |
bool | read_bytes_16 (uint8_t a_register, uint16_t *data, uint8_t len) |
bool | read_byte (uint8_t a_register, uint8_t *data, bool stop=true) |
optional< uint8_t > | read_byte (uint8_t a_register) |
bool | read_byte_16 (uint8_t a_register, uint16_t *data) |
bool | write_bytes (uint8_t a_register, const uint8_t *data, uint8_t len, bool stop=true) |
bool | write_bytes (uint8_t a_register, const std::vector< uint8_t > &data) |
template<size_t N> | |
bool | write_bytes (uint8_t a_register, const std::array< uint8_t, N > &data) |
bool | write_bytes_16 (uint8_t a_register, const uint16_t *data, uint8_t len) |
bool | write_byte (uint8_t a_register, uint8_t data, bool stop=true) |
bool | write_byte_16 (uint8_t a_register, uint16_t data) |
Protected Member Functions | |
bool | read_inputs_ () |
bool | write_register_ (uint8_t reg, uint16_t value) |
Protected Member Functions inherited from esphome::Component | |
virtual void | call_loop () |
virtual void | call_setup () |
virtual void | call_dump_config () |
void | set_interval (const std::string &name, uint32_t interval, std::function< void()> &&f) |
Set an interval function with a unique name. More... | |
void | set_interval (uint32_t interval, std::function< void()> &&f) |
bool | cancel_interval (const std::string &name) |
Cancel an interval function. More... | |
void | set_retry (const std::string &name, uint32_t initial_wait_time, uint8_t max_attempts, std::function< RetryResult(uint8_t)> &&f, float backoff_increase_factor=1.0f) |
Set an retry function with a unique name. More... | |
void | set_retry (uint32_t initial_wait_time, uint8_t max_attempts, std::function< RetryResult(uint8_t)> &&f, float backoff_increase_factor=1.0f) |
bool | cancel_retry (const std::string &name) |
Cancel a retry function. More... | |
void | set_timeout (const std::string &name, uint32_t timeout, std::function< void()> &&f) |
Set a timeout function with a unique name. More... | |
void | set_timeout (uint32_t timeout, std::function< void()> &&f) |
bool | cancel_timeout (const std::string &name) |
Cancel a timeout function. More... | |
void | defer (const std::string &name, std::function< void()> &&f) |
Defer a callback to the next loop() call. More... | |
void | defer (std::function< void()> &&f) |
Defer a callback to the next loop() call. More... | |
bool | cancel_defer (const std::string &name) |
Cancel a defer callback using the specified name, name must not be empty. More... | |
Protected Attributes | |
size_t | pin_count_ {8} |
number of bits the expander has More... | |
size_t | reg_width_ {1} |
width of registers More... | |
uint16_t | config_mask_ {0x00} |
Mask for the pin config - 1 means OUTPUT, 0 means INPUT. More... | |
uint16_t | output_mask_ {0x00} |
The mask to write as output state - 1 means HIGH, 0 means LOW. More... | |
uint16_t | input_mask_ {0x00} |
The state of the actual input pin states - 1 means HIGH, 0 means LOW. More... | |
uint16_t | was_previously_read_ = {0x00} |
Flags to check if read previously during this loop. More... | |
esphome::i2c::ErrorCode | last_error_ |
Storage for last I2C error seen. More... | |
Protected Attributes inherited from esphome::Component | |
uint32_t | component_state_ {0x0000} |
State of this component. More... | |
float | setup_priority_override_ {NAN} |
const char * | component_source_ {nullptr} |
Protected Attributes inherited from esphome::i2c::I2CDevice | |
uint8_t | address_ {0x00} |
store the address of the device on the bus More... | |
I2CBus * | bus_ {nullptr} |
pointer to I2CBus instance More... | |
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default |
bool esphome::pca9554::PCA9554Component::digital_read | ( | uint8_t | pin | ) |
Helper function to read the value of a pin.
Definition at line 56 of file pca9554.cpp.
void esphome::pca9554::PCA9554Component::digital_write | ( | uint8_t | pin, |
bool | value | ||
) |
Helper function to write the value of a pin.
Definition at line 70 of file pca9554.cpp.
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overridevirtual |
Reimplemented from esphome::Component.
Definition at line 47 of file pca9554.cpp.
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overridevirtual |
Reimplemented from esphome::Component.
Definition at line 131 of file pca9554.cpp.
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overridevirtual |
Reimplemented from esphome::Component.
Definition at line 127 of file pca9554.cpp.
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overridevirtual |
Poll for input changes periodically.
Reimplemented from esphome::Component.
Definition at line 40 of file pca9554.cpp.
void esphome::pca9554::PCA9554Component::pin_mode | ( | uint8_t | pin, |
gpio::Flags | flags | ||
) |
Helper function to set the pin mode of a pin.
Definition at line 79 of file pca9554.cpp.
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protected |
Definition at line 90 of file pca9554.cpp.
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overridevirtual |
Check i2c availability and setup masks.
Reimplemented from esphome::Component.
Definition at line 15 of file pca9554.cpp.
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protected |
Definition at line 112 of file pca9554.cpp.
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