SensESP 2.7.2
Universal Signal K sensor toolkit ESP32
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sensesp::Frequency Class Reference

Transforms its input into frequency (Hz: cycles per second) More...

#include <sensesp/transforms/frequency.h>

Inheritance diagram for sensesp::Frequency:
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Public Member Functions

 Frequency (float multiplier=1, String config_path="")
 
virtual void set_input (int input, uint8_t inputChannel=0) override
 
virtual void start () override
 
virtual void get_configuration (JsonObject &doc) override
 
virtual bool set_configuration (const JsonObject &config) override
 
virtual String get_config_schema () override
 
- Public Member Functions inherited from sensesp::Transform< int, float >
 Transform (String config_path="")
 
Transform< int, float > * connect_from (ValueProducer< float > *producer0, ValueProducer< float > *producer1=NULL, ValueProducer< float > *producer2=NULL, ValueProducer< float > *producer3=NULL, ValueProducer< float > *producer4=NULL)
 
- Public Member Functions inherited from sensesp::TransformBase
 TransformBase (String config_path="")
 
- Public Member Functions inherited from sensesp::Configurable
 Configurable (String config_path="", String description="", int sort_order=1000)
 
String get_description ()
 
void set_description (String description)
 Set the description of the Configurable.
 
int get_sort_order ()
 
void set_sort_order (int sort_order)
 
virtual void save_configuration ()
 
- Public Member Functions inherited from sensesp::Startable
 Startable (int priority=0)
 
const int get_start_priority ()
 
void set_start_priority (int priority)
 
- Public Member Functions inherited from sensesp::ValueConsumer< T >
virtual void set_input (T new_value, uint8_t input_channel=0)
 
void connect_from (ValueProducer< T > *producer, uint8_t input_channel=0)
 
- Public Member Functions inherited from sensesp::ValueProducer< T >
 ValueProducer ()
 
virtual const T & get () const
 
void connect_to (ValueConsumer< T > *consumer, uint8_t input_channel=0)
 
template<typename CT >
void connect_to (ValueConsumer< CT > *consumer, uint8_t input_channel=0)
 Connect a producer to a consumer of a different type.
 
template<typename T2 >
Transform< T, T2 > * connect_to (Transform< T, T2 > *consumer_producer, uint8_t input_channel=0)
 
template<typename TT , typename T2 >
Transform< TT, T2 > * connect_to (Transform< TT, T2 > *consumer_producer, uint8_t input_channel=0)
 Connect a producer to a transform with a different input type.
 
void emit (T new_value)
 
- Public Member Functions inherited from sensesp::Observable
 Observable ()
 
 Observable (Observable &&other)
 Move constructor.
 
void notify ()
 
void attach (std::function< void()> observer)
 

Additional Inherited Members

- Static Public Member Functions inherited from sensesp::TransformBase
static const std::set< TransformBase * > & get_transforms ()
 
- Static Public Member Functions inherited from sensesp::Startable
static void start_all ()
 
- Public Attributes inherited from sensesp::Configurable
const String config_path_
 
- Protected Member Functions inherited from sensesp::Configurable
virtual void load_configuration ()
 
- Protected Attributes inherited from sensesp::Configurable
String description_ = ""
 
int sort_order_ = 1000
 
- Protected Attributes inherited from sensesp::ValueProducer< T >
output
 

Detailed Description

Transforms its input into frequency (Hz: cycles per second)

Divides its input value by the time elapsed since the last reading.

Parameters
multiplierOutput is multiplied by this parameter before being output, as a way to adjust the scale of the ouput. For example, if you're calculating the frequency of engine revolutions and you're sensing 4 signals per revolution (such as with 4 magnets on the flywheel), set multiplier = 0.25 to convert the total signals into "revolutions".
config_pathPath to configure this transform in the Config UI.

Definition at line 21 of file frequency.h.

Constructor & Destructor Documentation

◆ Frequency()

sensesp::Frequency::Frequency ( float  multiplier = 1,
String  config_path = "" 
)

Definition at line 7 of file frequency.cpp.

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Member Function Documentation

◆ get_config_schema()

String sensesp::Frequency::get_config_schema ( )
overridevirtual

Returns a configuration schema that specifies the key/value pairs that can be expected when calling get_configuration(), or are expected by set_configuration(). The schema will be in JSON Schema format

See also
https://json-schema.org

Reimplemented from sensesp::Configurable.

Definition at line 32 of file frequency.cpp.

◆ get_configuration()

void sensesp::Frequency::get_configuration ( JsonObject configObject)
overridevirtual

Returns the current configuration data as a JsonObject. In general, the current state of local member variables are saved to a new object created with JsonDocument::as<JsonObject>() and returned.

Reimplemented from sensesp::Configurable.

Definition at line 21 of file frequency.cpp.

◆ set_configuration()

bool sensesp::Frequency::set_configuration ( const JsonObject config)
overridevirtual

Sets the current state of local member variables using the data stored in config.

Reimplemented from sensesp::Configurable.

Definition at line 34 of file frequency.cpp.

◆ set_input()

void sensesp::Frequency::set_input ( int  input,
uint8_t  inputChannel = 0 
)
overridevirtual

Definition at line 14 of file frequency.cpp.

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◆ start()

void sensesp::Frequency::start ( )
overridevirtual

Called during the initialization process. Override this method to add runtime initialization code to your class

Reimplemented from sensesp::Startable.

Definition at line 12 of file frequency.cpp.


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