Benoit Marchand / iGreenhouse_Node2_gcc_arm_nucleo_l073rz

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Dependencies:   mbed Sht31

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SHT15 Class Reference
Public Member Functions

SHT15 Class Reference

Class: SHT15 Humidity and Temperature Sensor - SHT15 High level software interface. More...

#include <sht15.hpp>

Public Member Functions

float getTemperature (void)
 Function: getTemperature Returns the current temperature.
float getHumidity (void)
 Function: getHumidity Returns the current relative humidity.
bool checkBattery (void)
 Function: checkBattery Returns true if battery voltage drops below 2.4 volt.
bool setHeater (bool value)
 Function: setHeater Enable on chip heating element.
bool setResolution (bool value)
 Function: setResolution Set lower measurement resolution to allow faster update frequencies.
bool setOTPReload (bool value)
 Function: setOTPReload With this operation the calibration data is uploaded to the register before each measurement.
void setScale (bool value)
 Function: setScale Sets output scale to fahrenheit or celcius.
bool update (void)
 Function: update Performs humidity and temperature sensor readout of the chip.
bool reset (void)
 Function: reset Resets the interface, clears the status register to default values.
void connectionReset (void)
 Function: connectionReset If communication with the device is lost the command will reset the serial interface.

Detailed Description

Class: SHT15 Humidity and Temperature Sensor - SHT15 High level software interface.

Definition at line 39 of file sht15.hpp.

Member Function Documentation

bool checkBattery ( void   )

Function: checkBattery Returns true if battery voltage drops below 2.4 volt.

Values: returns - true on low battery, false otherwise

Definition at line 54 of file sht15.cpp.

void connectionReset ( void   )

Function: connectionReset If communication with the device is lost the command will reset the serial interface.

Definition at line 117 of file sht15.cpp.

float getHumidity ( void   )

Function: getHumidity Returns the current relative humidity.

Values: returns - relative humidity.

Definition at line 45 of file sht15.cpp.

float getTemperature ( void   )

Function: getTemperature Returns the current temperature.

Values: returns - current temperature.

Definition at line 36 of file sht15.cpp.

bool reset ( void   )

Function: reset Resets the interface, clears the status register to default values.

And waits for a minimum of 11ms.

Values: return - operation result

Definition at line 94 of file sht15.cpp.

bool setHeater ( bool  value )

Function: setHeater Enable on chip heating element.

The heater may increase the temperature of the sensor by 5C to 10C beyond ambient temperature.

Values: value - true->on, false->off return - operation result

Definition at line 60 of file sht15.cpp.

bool setOTPReload ( bool  value )

Function: setOTPReload With this operation the calibration data is uploaded to the register before each measurement.

This may be deactivated for reducing measurement time by about 10ms

Values: value - true->enabled, false->disabled

Definition at line 72 of file sht15.cpp.

bool setResolution ( bool  value )

Function: setResolution Set lower measurement resolution to allow faster update frequencies.

Resolutions low: 8bit humid. - 12bit temp. high: 12bit humid. - 14bit temp.

Values: value - true->low, false->high return - operation result

Definition at line 66 of file sht15.cpp.

void setScale ( bool  value )

Function: setScale Sets output scale to fahrenheit or celcius.

Values: value - true->fahrenheit, false->celcius

Definition at line 78 of file sht15.cpp.

bool update ( void   )

Function: update Performs humidity and temperature sensor readout of the chip.

Values: return - operation result

Definition at line 83 of file sht15.cpp.

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