SensorHdc1000.h File Reference

Detailed Description

Driver for Texas Instruments HCD1000 humidity sensor.

Driver include

This header file should be included in an application as follows:

#include <ti/mw/sensors/SensorHdc1000.h>

#include "stdbool.h"
#include "stdint.h"

Go to the source code of this file.

Functions
bool	SensorHdc1000_init (void)
	Initialize the sensor. More...
void	SensorHdc1000_start (void)
	Start measurement. More...
bool	SensorHdc1000_read (uint16_t *pRawTemp, uint16_t *pRawHum)
	Read humidity sensor data. More...
void	SensorHdc1000_convert (uint16_t rawTemp, uint16_t rawHum, float *pTemp, float *pHum)
	Convert raw data to temperature and humidity. More...
bool	SensorHdc1000_test (void)
	Humidity sensor self test. More...

Function Documentation

SensorHdc1000_init()

bool SensorHdc1000_init

(

void

)

Initialize the sensor.

Configure reading of temperature and humidity as one read cycle, and use 14 bit data size.

Returns

true if writing to the sensor succeeds

SensorHdc1000_start()

void SensorHdc1000_start

(

void

)

Start measurement.

Precondition

SensorHdc1000_init must be called (and succeed first).

SensorHdc1000_read()

bool SensorHdc1000_read	(	uint16_t *	pRawTemp,
		uint16_t *	pRawHum
	)

Read humidity sensor data.

Parameters

pRawTemp	- buffer for raw temperature
pRawHum	- buffer for raw humidity

Returns

true if I2C read operation succeeds

SensorHdc1000_convert()

void SensorHdc1000_convert	(	uint16_t	rawTemp,
		uint16_t	rawHum,
		float *	pTemp,
		float *	pHum
	)

Convert raw data to temperature and humidity.

Calculate relative humidity and temperature based on provided raw data.

Parameters

rawTemp	- raw temperature value
rawHum	- raw humidity value
pTemp	- converted temperature [deg. C]
pHum	- converted humidity

SensorHdc1000_test()

bool SensorHdc1000_test

(

void

)

Humidity sensor self test.

Returns

true if test passes