Exponential Moving Average Voltage Divider based voltage sampler. More...

Inheritance diagram for EMAVDivSampler:

Public Member Functions
	EMAVDivSampler (const uint8_t pin, const uint16_t r1KOhm, const uint16_t r2KOhm, const float vRef, const uint16_t periodMs, const float alpha)

virtual float	averageVolts ()
	Get the mean value in the sample set.

virtual float	lastVolts ()
	Get the most recent voltage value.

Public Member Functions inherited from EMASampler
	EMASampler (const uint8_t pin, const uint16_t periodMs=10, const float alpha=0.5)

	~EMASampler ()

virtual void	begin ()

virtual void	update ()

virtual float	average ()

virtual int16_t	last ()

Public Member Functions inherited from AbstractSampler
	AbstractSampler (const uint8_t pin, const uint16_t periodMs)

virtual	~AbstractSampler ()
	Destructor.

uint8_t	pin ()
	Accessor for the pin which is geting read from.

Protected Attributes
uint16_t	_r1KOhm

uint16_t	_r2KOhm

float	_vRef

Protected Attributes inherited from EMASampler
float	_alpha
	alpha value used in EMA calculation

uint32_t	_lastUpdated
	when last sample taken

float	_movingAverage
	most recently calculated mean value

int16_t	_lastSample
	keep the most recent sample

Protected Attributes inherited from AbstractSampler
const uint8_t	_pin
	pin to read data from

const uint16_t	_periodMs
	minimum ms

Detailed Description

Exponential Moving Average Voltage Divider based voltage sampler.

Sampler a voltage using a voltage divider, EMA method.

Definition at line 10 of file EMAVDivSampler.h.

Constructor & Destructor Documentation

EMAVDivSampler::EMAVDivSampler	(	const uint8_t	pin,
		const uint16_t	r1KOhm,
		const uint16_t	r2KOhm,
		const float	vRef,
		const uint16_t	periodMs,
		const float	alpha
	)

Constructor

Parameters

pin	the analog input pin to read samples from
periodMs	the number of milliseconds between samples. If update() is called before periodMs has passed since the last update(), no sample will be taken.
samples	the number of samples to keep in the ring buffer used to calculate average(), minimum() and maximum().

Note: this class dynamically allocated memory for the ring buffer.

Definition at line 4 of file EMAVDivSampler.cpp.

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