SensESP 3.4.1-alpha
Universal Signal K sensor toolkit ESP32
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sensesp::MovingAverage Class Reference

Outputs the moving average of the last sample_size inputs. More...

#include <sensesp/transforms/moving_average.h>

Inheritance diagram for sensesp::MovingAverage:
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Public Member Functions

 MovingAverage (int sample_size, float multiplier=1.0, const String &config_path="")
 
virtual void set (const float &input) override
 
virtual bool to_json (JsonObject &root) override
 
virtual bool from_json (const JsonObject &config) override
 
- Public Member Functions inherited from sensesp::SymmetricTransform< float >
 SymmetricTransform (String config_path="")
 
- Public Member Functions inherited from sensesp::Transform< C, P >
 Transform (String config_path="")
 
Transform< C, P > * connect_from (ValueProducer< P > *producer0, ValueProducer< P > *producer1=NULL, ValueProducer< P > *producer2=NULL, ValueProducer< P > *producer3=NULL, ValueProducer< P > *producer4=NULL)
 
- Public Member Functions inherited from sensesp::TransformBase
 TransformBase (const String &config_path)
 
virtual ~TransformBase ()
 
- Public Member Functions inherited from sensesp::FileSystemSaveable
 FileSystemSaveable (const String &config_path)
 
virtual bool load () override
 Load and populate the object from a persistent storage.
 
virtual bool save () override
 Save the object to a persistent storage.
 
virtual bool clear () override
 Delete the data from a persistent storage.
 
bool find_config_file (const String &config_path, String &filename)
 
- Public Member Functions inherited from sensesp::Saveable
 Saveable (const String &config_path)
 
virtual bool refresh ()
 Refresh the object. This may or may not access the persistent storage but is not expected to overwrite the object's state.
 
const String & get_config_path () const
 
- Public Member Functions inherited from sensesp::ValueConsumer< C >
virtual void set (const C &new_value)
 
virtual void set_input (const C &new_value)
 
void connect_from (ValueProducer< C > *producer)
 
- Public Member Functions inherited from sensesp::ValueProducer< P >
 ValueProducer ()
 
 ValueProducer (const P &initial_value)
 
virtual const P & get () const
 
std::enable_if< std::is_base_of< ValueConsumer< typenameVConsumer::input_type >, VConsumer >::value &&std::is_convertible< P, typenameVConsumer::input_type >::value, std::shared_ptr< VConsumer > >::type connect_to (std::shared_ptr< VConsumer > consumer)
 Connect a producer to a transform with a different input type.
 
std::enable_if< std::is_base_of< ValueConsumer< typenameVConsumer::input_type >, VConsumer >::value &&std::is_convertible< P, typenameVConsumer::input_type >::value, VConsumer * >::type connect_to (VConsumer *consumer)
 
std::enable_if< std::is_base_of< ValueConsumer< typenameVConsumer::input_type >, VConsumer >::value &&std::is_convertible< P, typenameVConsumer::input_type >::value, VConsumer * >::type connect_to (VConsumer &consumer)
 
void emit (const P &new_value)
 
- Public Member Functions inherited from sensesp::Observable
 Observable ()
 
 Observable (Observable &&other)
 Move constructor.
 
void notify ()
 
int attach (std::function< void()> observer)
 Attach an observer callback.
 
void detach (int id)
 Remove a previously attached observer by its ID.
 

Additional Inherited Members

- Public Types inherited from sensesp::ValueConsumer< C >
using input_type = C
 
- Static Public Member Functions inherited from sensesp::TransformBase
static const std::set< TransformBase * > & get_transforms ()
 
static void clear_registry ()
 
- Protected Attributes inherited from sensesp::Saveable
const String config_path_
 
- Protected Attributes inherited from sensesp::ValueProducer< P >
output_
 

Detailed Description

Outputs the moving average of the last sample_size inputs.

Used to smooth the output of a value (signal) that has frequent variations. For example, the output of a temperature sensor may vary from 180 to 185 several times over a short period, but you just want to see the average of that. MovingAverage outputs the average of the most recent sample_size values. It also incorporates a "scale" factor, in case you want to increase or decrease your final output by a fixed percentage.

Definition at line 23 of file moving_average.h.

Constructor & Destructor Documentation

◆ MovingAverage()

sensesp::MovingAverage::MovingAverage ( int  sample_size,
float  multiplier = 1.0,
const String &  config_path = "" 
)
Parameters
sample_sizeThe number of most recent values you want to average for your output.
multiplierMoving average will be multiplied by multiplier before it is output - make it something other than 1. if you need to scale your output up or down by a fixed percentage.
config_pathThe path used to configure this transform in the Config UI.

Definition at line 7 of file moving_average.cpp.

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Member Function Documentation

◆ from_json()

bool sensesp::MovingAverage::from_json ( const JsonObject &  root)
overridevirtual

Deserializes the current object data from a JsonObject.

Reimplemented from sensesp::Serializable.

Definition at line 42 of file moving_average.cpp.

◆ set()

void sensesp::MovingAverage::set ( const float &  input)
overridevirtual

Definition at line 19 of file moving_average.cpp.

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◆ to_json()

bool sensesp::MovingAverage::to_json ( JsonObject &  root)
overridevirtual

Serializes the current object data into a JsonObject.

Reimplemented from sensesp::Serializable.

Definition at line 36 of file moving_average.cpp.


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