Capacitive digital sensor for relative humidity and temperature.
Dependencies: X_NUCLEO_COMMON ST_INTERFACES
Dependents: HelloWorld_ST_Sensors MOTENV_Mbed mbed-os-mqtt-client HTS221_JS ... more
Diff: HTS221Sensor.cpp
- Revision:
- 5:ccf7f36492ae
- Parent:
- 2:312ee2694a77
diff -r 9f317607860e -r ccf7f36492ae HTS221Sensor.cpp
--- a/HTS221Sensor.cpp Mon Mar 04 13:50:28 2019 +0000
+++ b/HTS221Sensor.cpp Wed Jul 24 14:17:21 2019 +0000
@@ -44,10 +44,10 @@
/* Class Implementation ------------------------------------------------------*/
-HTS221Sensor::HTS221Sensor(SPI *spi, PinName cs_pin, PinName drdy_pin) :
- _dev_spi(spi), _cs_pin(cs_pin), _drdy_pin(drdy_pin) // SPI3W ONLY
-{
- assert(spi);
+HTS221Sensor::HTS221Sensor(SPI *spi, PinName cs_pin, PinName drdy_pin) :
+ _dev_spi(spi), _cs_pin(cs_pin), _drdy_pin(drdy_pin) // SPI3W ONLY
+{
+ assert(spi);
_dev_i2c = NULL;
};
@@ -56,7 +56,7 @@
* @param address the address of the component's instance
*/
HTS221Sensor::HTS221Sensor(DevI2C *i2c, uint8_t address, PinName drdy_pin) :
- _dev_i2c(i2c), _address(address), _cs_pin(NC), _drdy_pin(drdy_pin)
+ _dev_i2c(i2c), _address(address), _cs_pin(NC), _drdy_pin(drdy_pin)
{
assert(i2c);
_dev_spi = NULL;
@@ -69,24 +69,21 @@
*/
int HTS221Sensor::init(void *init)
{
- /* Power down the device */
- if ( HTS221_DeActivate( (void *)this ) == HTS221_ERROR )
- {
- return 1;
- }
+ /* Power down the device */
+ if (HTS221_DeActivate((void *)this) == HTS221_ERROR) {
+ return 1;
+ }
- /* Enable BDU */
- if ( HTS221_Set_BduMode( (void *)this, HTS221_ENABLE ) == HTS221_ERROR )
- {
- return 1;
- }
-
- if(set_odr(1.0f) == 1)
- {
- return 1;
- }
-
- return 0;
+ /* Enable BDU */
+ if (HTS221_Set_BduMode((void *)this, HTS221_ENABLE) == HTS221_ERROR) {
+ return 1;
+ }
+
+ if (set_odr(1.0f) == 1) {
+ return 1;
+ }
+
+ return 0;
}
/**
@@ -95,13 +92,12 @@
*/
int HTS221Sensor::enable(void)
{
- /* Power up the device */
- if ( HTS221_Activate( (void *)this ) == HTS221_ERROR )
- {
- return 1;
- }
+ /* Power up the device */
+ if (HTS221_Activate((void *)this) == HTS221_ERROR) {
+ return 1;
+ }
- return 0;
+ return 0;
}
/**
@@ -110,13 +106,12 @@
*/
int HTS221Sensor::disable(void)
{
- /* Power up the device */
- if ( HTS221_DeActivate( (void *)this ) == HTS221_ERROR )
- {
- return 1;
- }
+ /* Power up the device */
+ if (HTS221_DeActivate((void *)this) == HTS221_ERROR) {
+ return 1;
+ }
- return 0;
+ return 0;
}
/**
@@ -126,18 +121,16 @@
*/
int HTS221Sensor::read_id(uint8_t *id)
{
- if(!id)
- {
- return 1;
- }
-
- /* Read WHO AM I register */
- if ( HTS221_Get_DeviceID( (void *)this, id ) == HTS221_ERROR )
- {
- return 1;
- }
+ if (!id) {
+ return 1;
+ }
- return 0;
+ /* Read WHO AM I register */
+ if (HTS221_Get_DeviceID((void *)this, id) == HTS221_ERROR) {
+ return 1;
+ }
+
+ return 0;
}
/**
@@ -150,20 +143,18 @@
uint8_t tmpreg;
/* Read CTRL_REG2 register */
- if (read_reg(HTS221_CTRL_REG2, &tmpreg) != 0)
- {
- return 1;
+ if (read_reg(HTS221_CTRL_REG2, &tmpreg) != 0) {
+ return 1;
}
/* Enable or Disable the reboot memory */
tmpreg |= (0x01 << HTS221_BOOT_BIT);
/* Write value to MEMS CTRL_REG2 regsister */
- if (write_reg(HTS221_CTRL_REG2, tmpreg) != 0)
- {
- return 1;
+ if (write_reg(HTS221_CTRL_REG2, tmpreg) != 0) {
+ return 1;
}
-
+
return 0;
}
@@ -172,19 +163,18 @@
* @param pfData the pointer to data output
* @retval 0 in case of success, an error code otherwise
*/
-int HTS221Sensor::get_humidity(float* pfData)
+int HTS221Sensor::get_humidity(float *pfData)
{
- uint16_t uint16data = 0;
+ uint16_t uint16data = 0;
- /* Read data from HTS221. */
- if ( HTS221_Get_Humidity( (void *)this, &uint16data ) == HTS221_ERROR )
- {
- return 1;
- }
+ /* Read data from HTS221. */
+ if (HTS221_Get_Humidity((void *)this, &uint16data) == HTS221_ERROR) {
+ return 1;
+ }
- *pfData = ( float )uint16data / 10.0f;
+ *pfData = (float)uint16data / 10.0f;
- return 0;
+ return 0;
}
/**
@@ -192,19 +182,18 @@
* @param pfData the pointer to data output
* @retval 0 in case of success, an error code otherwise
*/
-int HTS221Sensor::get_temperature(float* pfData)
+int HTS221Sensor::get_temperature(float *pfData)
{
- int16_t int16data = 0;
+ int16_t int16data = 0;
- /* Read data from HTS221. */
- if ( HTS221_Get_Temperature( (void *)this, &int16data ) == HTS221_ERROR )
- {
- return 1;
- }
+ /* Read data from HTS221. */
+ if (HTS221_Get_Temperature((void *)this, &int16data) == HTS221_ERROR) {
+ return 1;
+ }
- *pfData = ( float )int16data / 10.0f;
+ *pfData = (float)int16data / 10.0f;
- return 0;
+ return 0;
}
/**
@@ -212,35 +201,33 @@
* @param odr the pointer to the output data rate
* @retval 0 in case of success, an error code otherwise
*/
-int HTS221Sensor::get_odr(float* odr)
+int HTS221Sensor::get_odr(float *odr)
{
- HTS221_Odr_et odr_low_level;
+ HTS221_Odr_et odr_low_level;
- if ( HTS221_Get_Odr( (void *)this, &odr_low_level ) == HTS221_ERROR )
- {
- return 1;
- }
+ if (HTS221_Get_Odr((void *)this, &odr_low_level) == HTS221_ERROR) {
+ return 1;
+ }
- switch( odr_low_level )
- {
- case HTS221_ODR_ONE_SHOT:
- *odr = 0.0f;
- break;
- case HTS221_ODR_1HZ :
- *odr = 1.0f;
- break;
- case HTS221_ODR_7HZ :
- *odr = 7.0f;
- break;
- case HTS221_ODR_12_5HZ :
- *odr = 12.5f;
- break;
- default :
- *odr = -1.0f;
- return 1;
- }
+ switch (odr_low_level) {
+ case HTS221_ODR_ONE_SHOT:
+ *odr = 0.0f;
+ break;
+ case HTS221_ODR_1HZ :
+ *odr = 1.0f;
+ break;
+ case HTS221_ODR_7HZ :
+ *odr = 7.0f;
+ break;
+ case HTS221_ODR_12_5HZ :
+ *odr = 12.5f;
+ break;
+ default :
+ *odr = -1.0f;
+ return 1;
+ }
- return 0;
+ return 0;
}
/**
@@ -250,18 +237,17 @@
*/
int HTS221Sensor::set_odr(float odr)
{
- HTS221_Odr_et new_odr;
+ HTS221_Odr_et new_odr;
- new_odr = ( odr <= 1.0f ) ? HTS221_ODR_1HZ
- : ( odr <= 7.0f ) ? HTS221_ODR_7HZ
- : HTS221_ODR_12_5HZ;
+ new_odr = (odr <= 1.0f) ? HTS221_ODR_1HZ
+ : (odr <= 7.0f) ? HTS221_ODR_7HZ
+ : HTS221_ODR_12_5HZ;
- if ( HTS221_Set_Odr( (void *)this, new_odr ) == HTS221_ERROR )
- {
- return 1;
- }
+ if (HTS221_Set_Odr((void *)this, new_odr) == HTS221_ERROR) {
+ return 1;
+ }
- return 0;
+ return 0;
}
@@ -272,15 +258,14 @@
* @retval 0 in case of success
* @retval 1 in case of failure
*/
-int HTS221Sensor::read_reg( uint8_t reg, uint8_t *data )
+int HTS221Sensor::read_reg(uint8_t reg, uint8_t *data)
{
- if ( HTS221_read_reg( (void *)this, reg, 1, data ) == HTS221_ERROR )
- {
- return 1;
- }
+ if (HTS221_read_reg((void *)this, reg, 1, data) == HTS221_ERROR) {
+ return 1;
+ }
- return 0;
+ return 0;
}
/**
@@ -290,23 +275,22 @@
* @retval 0 in case of success
* @retval 1 in case of failure
*/
-int HTS221Sensor::write_reg( uint8_t reg, uint8_t data )
+int HTS221Sensor::write_reg(uint8_t reg, uint8_t data)
{
- if ( HTS221_write_reg( (void *)this, reg, 1, &data ) == HTS221_ERROR )
- {
- return 1;
- }
+ if (HTS221_write_reg((void *)this, reg, 1, &data) == HTS221_ERROR) {
+ return 1;
+ }
- return 0;
+ return 0;
}
-uint8_t HTS221_io_write( void *handle, uint8_t WriteAddr, uint8_t *pBuffer, uint16_t nBytesToWrite )
+uint8_t HTS221_io_write(void *handle, uint8_t WriteAddr, uint8_t *pBuffer, uint16_t nBytesToWrite)
{
- return ((HTS221Sensor *)handle)->io_write(pBuffer, WriteAddr, nBytesToWrite);
+ return ((HTS221Sensor *)handle)->io_write(pBuffer, WriteAddr, nBytesToWrite);
}
-uint8_t HTS221_io_read( void *handle, uint8_t ReadAddr, uint8_t *pBuffer, uint16_t nBytesToRead )
+uint8_t HTS221_io_read(void *handle, uint8_t ReadAddr, uint8_t *pBuffer, uint16_t nBytesToRead)
{
- return ((HTS221Sensor *)handle)->io_read(pBuffer, ReadAddr, nBytesToRead);
+ return ((HTS221Sensor *)handle)->io_read(pBuffer, ReadAddr, nBytesToRead);
}