Adafruit_SHT4x Class Reference

#include <Adafruit_SHT4x.h>

Public Member Functions
	Adafruit_SHT4x (void)
	SHT4x constructor.
	~Adafruit_SHT4x (void)
	SHT4x destructor.
bool	begin (TwoWire *theWire=&Wire)
uint32_t	readSerial (void)
bool	reset (void)
void	setPrecision (sht4x_precision_t prec)
	Sets the precision rating - more precise takes longer! More...
sht4x_precision_t	getPrecision (void)
	Gets the precision rating - more precise takes longer! More...
void	setHeater (sht4x_heater_t heat)
	Sets the heating setting - more heating uses more power and takes longer. More...
sht4x_heater_t	getHeater (void)
	Gets the heating setting - more heating uses more power and takes longer. More...
bool	getEvent (sensors_event_t *humidity, sensors_event_t *temp)
	Gets the humidity sensor and temperature values as sensor events. More...
Adafruit_Sensor *	getTemperatureSensor (void)
	Gets the Adafruit_Sensor object for the SHT4x's temperature sensor. More...
Adafruit_Sensor *	getHumiditySensor (void)
	Gets the Adafruit_Sensor object for the SHT4x's humidity sensor. More...

Protected Attributes
float	_temperature
	Last reading's temperature (C)
float	_humidity
	Last reading's humidity (percent)
uint16_t	_sensorid_humidity
	ID number for humidity.
uint16_t	_sensorid_temp
	ID number for temperature.
Adafruit_I2CDevice *	i2c_dev = NULL
	Pointer to I2C bus interface.
Adafruit_SHT4x_Temp *	temp_sensor = NULL
	Temp sensor data object.
Adafruit_SHT4x_Humidity *	humidity_sensor
	Humidity sensor data object. More...

Friends
class	Adafruit_SHT4x_Temp
class	Adafruit_SHT4x_Humidity

Detailed Description

Driver for the Adafruit SHT4x Temperature and Humidity breakout board.

Member Function Documentation

begin()

bool Adafruit_SHT4x::begin

(

TwoWire *

theWire = &Wire

)

Initialises the I2C bus, and assigns the I2C address to us.

Parameters

theWire

The I2C bus to use, defaults to &Wire

Returns

True if initialisation was successful, otherwise False.

readSerial()

uint32_t Adafruit_SHT4x::readSerial

(

void

)

Gets the ID register contents.

Returns

The 32-bit ID register.

reset()

bool Adafruit_SHT4x::reset

(

void

)

Performs a soft reset of the sensor to put it into a known state.

Returns

True on success, false if could not communicate with chip

setPrecision()

void Adafruit_SHT4x::setPrecision

(

sht4x_precision_t

prec

)

Sets the precision rating - more precise takes longer!

Parameters

prec	The desired precision setting, will be used during reads

getPrecision()

sht4x_precision_t Adafruit_SHT4x::getPrecision

(

void

)

Gets the precision rating - more precise takes longer!

Returns

The current precision setting, will be used during reads

setHeater()

void Adafruit_SHT4x::setHeater

(

sht4x_heater_t

heat

)

Sets the heating setting - more heating uses more power and takes longer.

Parameters

heat	The desired heater setting, will be used during reads

getHeater()

sht4x_heater_t Adafruit_SHT4x::getHeater

(

void

)

Gets the heating setting - more heating uses more power and takes longer.

Returns

The current heater setting, will be used during reads

getEvent()

bool Adafruit_SHT4x::getEvent	(	sensors_event_t *	humidity,
		sensors_event_t *	temp
	)

Gets the humidity sensor and temperature values as sensor events.

Parameters

humidity	Sensor event object that will be populated with humidity data
temp	Sensor event object that will be populated with temp data

Returns

true if the event data was read successfully

getTemperatureSensor()

Adafruit_Sensor * Adafruit_SHT4x::getTemperatureSensor

(

void

)

Gets the Adafruit_Sensor object for the SHT4x's temperature sensor.

Returns

Adafruit_Sensor*

getHumiditySensor()

Adafruit_Sensor * Adafruit_SHT4x::getHumiditySensor

(

void

)

Gets the Adafruit_Sensor object for the SHT4x's humidity sensor.

Returns

Adafruit_Sensor*

Friends And Related Function Documentation

Adafruit_SHT4x_Temp

friend class Adafruit_SHT4x_Temp

friend

Gives access to private members to Temp data object

Adafruit_SHT4x_Humidity

friend class Adafruit_SHT4x_Humidity

friend

Gives access to private members to Humidity data object

Member Data Documentation

humidity_sensor

Adafruit_SHT4x_Humidity* Adafruit_SHT4x::humidity_sensor

protected

Initial value:

=
      NULL

Humidity sensor data object.

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

• Adafruit_SHT4x.h
• Adafruit_SHT4x.cpp