ESPHome  2022.1.2
Public Member Functions | Protected Attributes
esphome::sensor::Filter Class Referenceabstract

Apply a filter to sensor values such as moving average. More...

#include <filter.h>

Inheritance diagram for esphome::sensor::Filter:
esphome::sensor::CalibrateLinearFilter esphome::sensor::CalibratePolynomialFilter esphome::sensor::DebounceFilter esphome::sensor::DeltaFilter esphome::sensor::ExponentialMovingAverageFilter esphome::sensor::FilterOutValueFilter esphome::sensor::HeartbeatFilter esphome::sensor::LambdaFilter esphome::sensor::MaxFilter esphome::sensor::MedianFilter esphome::sensor::MinFilter esphome::sensor::MultiplyFilter esphome::sensor::OffsetFilter esphome::sensor::OrFilter esphome::sensor::OrFilter::PhiNode esphome::sensor::QuantileFilter esphome::sensor::SlidingWindowMovingAverageFilter esphome::sensor::ThrottleAverageFilter esphome::sensor::ThrottleFilter

Public Member Functions

virtual optional< float > new_value (float value)=0
 This will be called every time the filter receives a new value. More...
virtual void initialize (Sensor *parent, Filter *next)
 Initialize this filter, please note this can be called more than once. More...
void input (float value)
void output (float value)

Protected Attributes

friend Sensor
Filternext_ {nullptr}
Sensorparent_ {nullptr}

Detailed Description

Apply a filter to sensor values such as moving average.

This class is purposefully kept quite simple, since more complicated filters should really be done with the filter sensor in Home Assistant.

Definition at line 18 of file filter.h.

Member Function Documentation

◆ initialize()

void esphome::sensor::Filter::initialize ( Sensor parent,
Filter next 

Initialize this filter, please note this can be called more than once.

Reimplemented in esphome::sensor::OrFilter.

Definition at line 28 of file filter.cpp.

◆ input()

void esphome::sensor::Filter::input ( float  value)

Definition at line 13 of file filter.cpp.

◆ new_value()

virtual optional<float> esphome::sensor::Filter::new_value ( float  value)
pure virtual

◆ output()

void esphome::sensor::Filter::output ( float  value)

Definition at line 19 of file filter.cpp.

Field Documentation

◆ next_

Filter* esphome::sensor::Filter::next_ {nullptr}

Definition at line 41 of file filter.h.

◆ parent_

Sensor* esphome::sensor::Filter::parent_ {nullptr}

Definition at line 42 of file filter.h.

◆ Sensor

friend esphome::sensor::Filter::Sensor

Definition at line 39 of file filter.h.

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