Adafruit_MPL3115A2 Class Reference

Class that stores state and functions for interacting with MPL3115A2 altimeter. More...

#include <Adafruit_MPL3115A2.h>

Public Member Functions
	Adafruit_MPL3115A2 ()
	Instantiates a new MPL3115A2 class.
boolean	begin (TwoWire *twoWire=&Wire)
	Setups the HW (reads coefficients values, etc.) More...
float	getPressure (void)
	Get barometric pressure. More...
float	getAltitude (void)
	Get altitude. More...
int8_t	getAltitudeOffset (void)
	Get the altitude offset. More...
void	setAltitudeOffset (int8_t offset)
	Set the altitude offset. More...
float	getTemperature (void)
	Get temperature. More...
void	setSeaPressure (float SLP)
	Set the local sea level pressure. More...
void	setMode (mpl3115a2_mode_t mode=MPL3115A2_BAROMETER)
	Set measurement mode. More...
void	startOneShot (void)
	Initiate a one-shot measurement.
bool	conversionComplete (void)
	Check for measurement conversion completion. More...
float	getLastConversionResults (mpl3115a2_meas_t value=MPL3115A2_PRESSURE)
	Get results from last measurement. More...
void	write8 (uint8_t a, uint8_t d)
	write a byte of data to the specified address More...

Detailed Description

Class that stores state and functions for interacting with MPL3115A2 altimeter.

Member Function Documentation

begin()

boolean Adafruit_MPL3115A2::begin

(

TwoWire *

twoWire = &Wire

)

Setups the HW (reads coefficients values, etc.)

Parameters

twoWire

Optional TwoWire I2C object

Returns

true on successful startup, false otherwise

getPressure()

float Adafruit_MPL3115A2::getPressure

(

void

)

Get barometric pressure.

Returns

pressure reading as a floating point value in hPa

getAltitude()

float Adafruit_MPL3115A2::getAltitude

(

void

)

Get altitude.

Returns

altitude reading as a floating-point value in meters

getAltitudeOffset()

int8_t Adafruit_MPL3115A2::getAltitudeOffset

(

void

)

Get the altitude offset.

Returns

Offset value in meters

setAltitudeOffset()

void Adafruit_MPL3115A2::setAltitudeOffset

(

int8_t

offset

)

Set the altitude offset.

Parameters

offset

Offset value in meters, from -127 to 128

getTemperature()

float Adafruit_MPL3115A2::getTemperature

(

void

)

Get temperature.

Returns

temperature reading as a floating-point value in degC

setSeaPressure()

void Adafruit_MPL3115A2::setSeaPressure

(

float

SLP

)

Set the local sea level pressure.

Parameters

SLP	sea level pressure in hPa

setMode()

void Adafruit_MPL3115A2::setMode

(

mpl3115a2_mode_t

mode = MPL3115A2_BAROMETER

)

Set measurement mode.

Parameters

mode	The measurement mode. Can be MPL3115A2_BAROMETER or MPL3115A2_ALTIMETER.

conversionComplete()

bool Adafruit_MPL3115A2::conversionComplete

(

void

)

Check for measurement conversion completion.

Returns

true if conversion is complete, otherwise false.

getLastConversionResults()

float Adafruit_MPL3115A2::getLastConversionResults

(

mpl3115a2_meas_t

value = MPL3115A2_PRESSURE

)

Get results from last measurement.

Parameters

value

Measurement value, can be MPL3115A2_PRESSURE, MPL3115A2_ALTITUDE, or MPL3115A2_TEMPERATURE

Returns

The measurement value.

write8()

void Adafruit_MPL3115A2::write8	(	uint8_t	a,
		uint8_t	d
	)

write a byte of data to the specified address

Parameters

a	the address to write to
d	the byte to write

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

• Adafruit_MPL3115A2.h
• Adafruit_MPL3115A2.cpp