API for configuring and manipulating Temp&Hum 18 Click driver. More...

Topics
	Temp&Hum 18 Registers List
	List of registers of Temp&Hum 18 Click driver.

	Temp&Hum 18 Command List
	List of commands of Temp&Hum 18 Click driver.

	Temp&Hum 18 status bits
	List of status bits of Temp&Hum 18 Click driver.

	Temp&Hum 18 Registers Settings
	Settings for registers of Temp&Hum 18 Click driver.

	Temp&Hum 18 MikroBUS Map
	MikroBUS pin mapping of Temp&Hum 18 Click driver.

Functions
void	temphum18_cfg_setup (temphum18_cfg_t *cfg)
	Temp&Hum 18 configuration object setup function.

err_t	temphum18_init (temphum18_t ctx, temphum18_cfg_t cfg)
	Temp&Hum 18 initialization function.

err_t	temphum18_default_cfg (temphum18_t *ctx)
	Temp&Hum 18 default configuration function.

err_t	temphum18_generic_write (temphum18_t ctx, uint8_t reg, uint8_t tx_buf, uint8_t tx_len)
	Temp&Hum 18 I2C writing function.

err_t	temphum18_generic_read (temphum18_t ctx, uint8_t reg, uint8_t rx_buf, uint8_t rx_len)
	Temp&Hum 18 I2C reading function.

err_t	temphum18_wake_up (temphum18_t *ctx)
	Temp&Hum 18 wake up function.

err_t	temphum18_get_raw_data (temphum18_t ctx, uint8_t resolution, int16_t temp, uint16_t hum, uint8_t status)
	Temp&Hum 18 get raw data function.

err_t	temphum18_get_temp_hum (temphum18_t ctx, uint8_t resolution, float temperature, float *humidity)
	Temp&Hum 18 get temperature and humidity function.

err_t	temphum18_enter_programming_mode (temphum18_t *ctx)
	Temp&Hum 18 enter programming mode function.

err_t	temphum18_enter_measurements_mode (temphum18_t *ctx)
	Temp&Hum 18 enter measurements mode function.

err_t	temphum18_set_relative_humidity_resolution (temphum18_t *ctx, uint8_t resolution)
	Temp&Hum 18 set relative humidity resolution function.

err_t	temphum18_set_temperature_resolution (temphum18_t *ctx, uint8_t resolution)
	Temp&Hum 18 set relative temperature resolution function.

Detailed Description

API for configuring and manipulating Temp&Hum 18 Click driver.

Any initialization code needed for MCU to function properly. Do not remove this line or clock might not be set correctly.

Function Documentation

◆ temphum18_cfg_setup()

void temphum18_cfg_setup ( temphum18_cfg_t * cfg )

Temp&Hum 18 configuration object setup function.

This function initializes click configuration structure to initial values.

Parameters

[out] cfg : Click configuration structure. See temphum18_cfg_t object definition for detailed explanation.

Returns: Nothing.

Note: The all used pins will be set to unconnected state.

◆ temphum18_default_cfg()

err_t temphum18_default_cfg ( temphum18_t * ctx )

Temp&Hum 18 default configuration function.

This function executes a default configuration of Temp&Hum 18 click board.

Parameters

[in] ctx : Click context object. See temphum18_t object definition for detailed explanation.

Returns

0 - Success,
-1 - Error.

See #err_t definition for detailed explanation.

Note: This function can consist any necessary configuration or setting to put device into operating mode.

◆ temphum18_enter_measurements_mode()

err_t temphum18_enter_measurements_mode ( temphum18_t * ctx )

Temp&Hum 18 enter measurements mode function.

This function enter measurements mode, exit programming mode of the HS3003 High Performance Relative Humidity and Temperature Sensor on the Temp&Hum 18 click board™.

Parameters

[in] ctx : Click context object. See temphum18_t object definition for detailed explanation.

Returns

0 - Success,
-1 - Error.

See #err_t definition for detailed explanation.

Note: None.

◆ temphum18_enter_programming_mode()

err_t temphum18_enter_programming_mode ( temphum18_t * ctx )

Temp&Hum 18 enter programming mode function.

This function enter programming mode, accessing the non-volatile memory of the HS3003 High Performance Relative Humidity and Temperature Sensor on the Temp&Hum 18 click board™.

Parameters

[in] ctx : Click context object. See temphum18_t object definition for detailed explanation.

Returns

0 - Success,
-1 - Error.

See #err_t definition for detailed explanation.

Note: To enter the programming mode, you must call the function within 10 ms after the sensor has been powered on.

◆ temphum18_generic_read()

err_t temphum18_generic_read	(	temphum18_t *	ctx,
		uint8_t	reg,
		uint8_t *	rx_buf,
		uint8_t	rx_len )

Temp&Hum 18 I2C reading function.

This function reads a desired number of data bytes starting from the selected register by using I2C serial interface.

Parameters

[in]	ctx	: Click context object. See temphum18_t object definition for detailed explanation.
[in]	reg	: Start register address.
[out]	rx_buf	: Output read data.
[in]	rx_len	: Number of bytes to be read.

Returns

0 - Success,
-1 - Error.

See #err_t definition for detailed explanation.

Note: None.

◆ temphum18_generic_write()

err_t temphum18_generic_write	(	temphum18_t *	ctx,
		uint8_t	reg,
		uint8_t *	tx_buf,
		uint8_t	tx_len )

Temp&Hum 18 I2C writing function.

This function writes a desired number of data bytes starting from the selected register by using I2C serial interface.

Parameters

[in]	ctx	: Click context object. See temphum18_t object definition for detailed explanation.
[in]	reg	: Start register address.
[in]	tx_buf	: Data to be written.
[in]	tx_len	: Number of bytes to be written.

Returns

0 - Success,
-1 - Error.

See #err_t definition for detailed explanation.

Note: None.

◆ temphum18_get_raw_data()

err_t temphum18_get_raw_data	(	temphum18_t *	ctx,
		uint8_t	resolution,
		int16_t *	temp,
		uint16_t *	hum,
		uint8_t *	status )

Temp&Hum 18 get raw data function.

This function get raw data of the HS3003 High Performance Relative Humidity and Temperature Sensor on the Temp&Hum 18 click board™.

Parameters

[in]	ctx	: Click context object.
[in]	resolution	: `0x00` ( TEMPHUM18_RESOLUTION_8_BITS ) - 8 bit resolution, `0x01` ( TEMPHUM18_RESOLUTION_10_BITS ) - 10 bit resolution, `0x02` ( TEMPHUM18_RESOLUTION_12_BITS ) - 12 bit resolution, `0x03` ( TEMPHUM18_RESOLUTION_14_BITS ) - 14 bit resolution.
[out]	temp	: Output read Temperature ( RAW ) data.
[out]	hum	: Output read Humidity ( RAW ) data.
[out]	status	: `0x00` ( TEMPHUM18_STATUS_VALID_DATA ) - Data that has not been fetched since the last measurement cycle, `0x01` ( TEMPHUM18_STATUS_STALE_DATA ) - Data that has already been fetched since the last measurement cycle.

Returns

0 - Success,
-1 - Error.

See #err_t definition for detailed explanation.

Note

Status : If a data fetch is performed before or during the first measurement after power-on reset, then the stale status will be returned, but this data is actually invalid since the first measurement has not been completed. The function performs a delay depending on the selected data resolution:

14-bit resolution it is 33.90 milliseconds,
12-bit resolution it is 9.10 milliseconds,
10-bit resolution it is 2.72 milliseconds,
8-bit resolution it is 1.20 milliseconds.

◆ temphum18_get_temp_hum()

err_t temphum18_get_temp_hum	(	temphum18_t *	ctx,
		uint8_t	resolution,
		float *	temperature,
		float *	humidity )

Temp&Hum 18 get temperature and humidity function.

This function get temperature ( degree Celsius ) and humidity ( % ) of the HS3003 High Performance Relative Humidity and Temperature Sensor on the Temp&Hum 18 click board™.

Parameters

[in]	ctx	: Click context object.
[in]	resolution	: `0x00` ( TEMPHUM18_RESOLUTION_8_BITS ) - 8 bit resolution, `0x01` ( TEMPHUM18_RESOLUTION_10_BITS ) - 10 bit resolution, `0x02` ( TEMPHUM18_RESOLUTION_12_BITS ) - 12 bit resolution, `0x03` ( TEMPHUM18_RESOLUTION_14_BITS ) - 14 bit resolution.
[out]	temperature	: Temperature data ( degree Celsius ).
[out]	humidity	: Humidity data ( % ).

Returns

0 ( TEMPHUM18_STATUS_VALID_DATA ) - Data that has not been fetched since the last measurement cycle,
1 ( TEMPHUM18_STATUS_STALE_DATA ) - Data that has already been fetched since the last measurement cycle.
-1 - Communication Error.

See #err_t definition for detailed explanation.

Note

Status : If a data fetch is performed before or during the first measurement after power-on reset, then the stale status will be returned, but this data is actually invalid since the first measurement has not been completed. The function performs a delay depending on the selected data resolution:

14-bit resolution it is 33.90 milliseconds,
12-bit resolution it is 9.10 milliseconds,
10-bit resolution it is 2.72 milliseconds,
8-bit resolution it is 1.20 milliseconds.

◆ temphum18_init()

err_t temphum18_init	(	temphum18_t *	ctx,
		temphum18_cfg_t *	cfg )

Temp&Hum 18 initialization function.

This function initializes all necessary pins and peripherals used for this click board.

Parameters

[out]	ctx	: Click context object. See temphum18_t object definition for detailed explanation.
[in]	cfg	: Click configuration structure. See temphum18_cfg_t object definition for detailed explanation.

Returns

0 - Success,
-1 - Error.

See #err_t definition for detailed explanation.

Note: None.

◆ temphum18_set_relative_humidity_resolution()

err_t temphum18_set_relative_humidity_resolution	(	temphum18_t *	ctx,
		uint8_t	resolution )

Temp&Hum 18 set relative humidity resolution function.

This function sets desired relative humidity resolution of the HS3003 High Performance Relative Humidity and Temperature Sensor on the Temp&Hum 18 click board™.

Parameters

[in]	ctx	: Click context object.
[in]	resolution	: `0x00` ( TEMPHUM18_RESOLUTION_8_BITS ) - 8 bit resolution, `0x01` ( TEMPHUM18_RESOLUTION_10_BITS ) - 10 bit resolution, `0x02` ( TEMPHUM18_RESOLUTION_12_BITS ) - 12 bit resolution, `0x03` ( TEMPHUM18_RESOLUTION_14_BITS ) - 14 bit resolution.

Returns

0 - Success,
-1 - Error.

See #err_t definition for detailed explanation.

Note: The function performs a delay of approximately 14 milliseconds.

◆ temphum18_set_temperature_resolution()

err_t temphum18_set_temperature_resolution	(	temphum18_t *	ctx,
		uint8_t	resolution )

Temp&Hum 18 set relative temperature resolution function.

This function sets desired relative temperature resolution of the HS3003 High Performance Relative Humidity and Temperature Sensor on the Temp&Hum 18 click board™.

Parameters

[in]	ctx	: Click context object.
[in]	resolution	: `0x00` ( TEMPHUM18_RESOLUTION_8_BITS ) - 8 bit resolution, `0x01` ( TEMPHUM18_RESOLUTION_10_BITS ) - 10 bit resolution, `0x02` ( TEMPHUM18_RESOLUTION_12_BITS ) - 12 bit resolution, `0x03` ( TEMPHUM18_RESOLUTION_14_BITS ) - 14 bit resolution.

Returns

0 - Success,
-1 - Error.

See #err_t definition for detailed explanation.

Note: The function performs a delay of approximately 14 milliseconds.

◆ temphum18_wake_up()

err_t temphum18_wake_up ( temphum18_t * ctx )

Temp&Hum 18 wake up function.

This function wake up the HS3003 High Performance Relative Humidity and Temperature Sensor from its Sleep Mode.

Parameters

[in] ctx : Click context object. See temphum18_t object definition for detailed explanation.

Returns

0 - Success,
-1 - Error.

See #err_t definition for detailed explanation.

Note: None.

Topics

Functions

Detailed Description

Function Documentation

◆ temphum18_cfg_setup()

◆ temphum18_default_cfg()

◆ temphum18_enter_measurements_mode()

◆ temphum18_enter_programming_mode()

◆ temphum18_generic_read()

◆ temphum18_generic_write()

◆ temphum18_get_raw_data()

◆ temphum18_get_temp_hum()

◆ temphum18_init()

◆ temphum18_set_relative_humidity_resolution()

◆ temphum18_set_temperature_resolution()

◆ temphum18_wake_up()