esphome::sensor::MedianFilter Class Reference

Simple median filter. More...

#include <filter.h>

Inheritance diagram for esphome::sensor::MedianFilter:

Public Member Functions
	MedianFilter (size_t window_size, size_t send_every, size_t send_first_at)
	Construct a MedianFilter. More...
optional< float >	new_value (float value) override
void	set_send_every (size_t send_every)
void	set_window_size (size_t window_size)
Public Member Functions inherited from esphome::sensor::Filter
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
std::deque< float >	queue_
size_t	send_every_
size_t	send_at_
size_t	window_size_
Protected Attributes inherited from esphome::sensor::Filter
friend	Sensor
Filter *	next_ {nullptr}
Sensor *	parent_ {nullptr}

Detailed Description

Simple median filter.

Takes the median of the last <send_every> values and pushes it out every <send_every>.

Definition at line 82 of file filter.h.

Constructor & Destructor Documentation

MedianFilter()

esphome::sensor::MedianFilter::MedianFilter ( size_t  window_size, size_t  send_every, size_t  send_first_at  )

explicit

Construct a MedianFilter.

Parameters

window_size	The number of values that should be used in median calculation.
send_every	After how many sensor values should a new one be pushed out.
send_first_at	After how many values to forward the very first value. Defaults to the first value on startup being published on the first raw value, so with no filter applied. Must be less than or equal to send_every.

Definition at line 35 of file filter.cpp.

Member Function Documentation

new_value()

optional< float > esphome::sensor::MedianFilter::new_value ( float  value )

overridevirtual

Implements esphome::sensor::Filter.

Definition at line 39 of file filter.cpp.

set_send_every()

void esphome::sensor::MedianFilter::set_send_every

(

size_t

send_every

)

Definition at line 37 of file filter.cpp.

set_window_size()

void esphome::sensor::MedianFilter::set_window_size

(

size_t

window_size

)

Definition at line 38 of file filter.cpp.

Field Documentation

queue_

std::deque<float> esphome::sensor::MedianFilter::queue_

protected

Definition at line 100 of file filter.h.

send_at_

size_t esphome::sensor::MedianFilter::send_at_

protected

Definition at line 102 of file filter.h.

send_every_

size_t esphome::sensor::MedianFilter::send_every_

protected

Definition at line 101 of file filter.h.

window_size_

size_t esphome::sensor::MedianFilter::window_size_

protected

Definition at line 103 of file filter.h.

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

• /opt/build/esphome/esphome/components/sensor/filter.h
• /opt/build/esphome/esphome/components/sensor/filter.cpp