Simple sliding window moving average filter. More...

#include <filter.h>

Inheritance diagram for esphome::sensor::SlidingWindowMovingAverageFilter:

Public Member Functions
	SlidingWindowFilter (size_t window_size, size_t send_every, size_t send_first_at)
	Construct a SlidingWindowMovingAverageFilter.

Public Member Functions inherited from esphome::sensor::SlidingWindowFilter
	SlidingWindowFilter (size_t window_size, size_t send_every, size_t send_first_at)

optional< float >	new_value (float value) final

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.

void	input (float value)

void	output (float value)

Protected Member Functions
float	compute_result () override

Protected Member Functions inherited from esphome::sensor::SlidingWindowFilter

Additional Inherited Members
Protected Attributes inherited from esphome::sensor::SlidingWindowFilter
FixedVector< float >	window_
	Access the sliding window values (ring buffer implementation) Use: for (size_t i = 0; i < window_count_; i++) { float val = window_[i]; }.

size_t	window_head_ {0}
	Index where next value will be written.

size_t	window_count_ {0}
	Number of valid values in window (0 to window_size_)

size_t	window_size_
	Maximum window size.

size_t	send_every_
	Send result every N values.

size_t	send_at_
	Counter for send_every.

Protected Attributes inherited from esphome::sensor::Filter
friend	Sensor

Filter *	next_ {nullptr}

Sensor *	parent_ {nullptr}

Detailed Description

Simple sliding window moving average filter.

Essentially just takes takes the average of the last window_size values and pushes them out every send_every.

Definition at line 219 of file filter.h.

Member Function Documentation

float esphome::sensor::SlidingWindowMovingAverageFilter::compute_result ( )

overrideprotectedvirtual

Definition at line 150 of file filter.cpp.

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

Parameters

window_size	The number of values that should be averaged.
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 55 of file filter.cpp.

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