barometer3  2.0.0.0
Main Page

Barometer 3 click

Barometer 3 Click is a compact add-on board for applications which require digital barometric air pressure measurement. This board features the DPS368, a digital barometric air pressure sensor from Infineon.

click Product page


Click library

  • Author : MikroE Team
  • Date : Jul 2020.
  • Type : I2C/SPI type

Software Support

We provide a library for the Barometer3 Click as well as a demo application (example), developed using MikroElektronika compilers. The demo can run on all the main MikroElektronika development boards.

Package can be downloaded/installed directly form compilers IDE(recommended way), or downloaded from our LibStock, or found on mikroE github account.

Library Description

This library contains API for Barometer3 Click driver.

Standard key functions :

  • Config Object Initialization function.

    void barometer3_cfg_setup ( barometer3_cfg_t *cfg );

  • Initialization function.

    BAROMETER3_RETVAL barometer3_init ( barometer3_t *ctx, barometer3_cfg_t *cfg );

  • Click Default Configuration function.

    void barometer3_def_cfg ( barometer3_t *ctx );

Example key functions :

  • Temperature Measurement Configuration function.

    void barometer3_cfg_temp ( barometer3_t *ctx, uint8_t temp_mr, uint8_t temp_osr );

  • Get Temperature Measurement Once function.

    uint8_t barometer3_meas_temp_once ( barometer3_t *ctx, float *result, uint8_t temp_osr );

  • Get Pressure Measurement Once function.

    uint8_t barometer3_meas_prs_once ( barometer3_t *ctx, float *result, uint8_t prs_osr );

Examples Description

This example demonstrates the use of Barometer 3 click board.

The demo application is composed of two sections :

Application Init

Initializes the driver, sets the click board default configuration and check the communication by reading the device ID.

void application_init ( void )
{
log_cfg_t log_cfg;
uint8_t status_val;
LOG_MAP_USB_UART( log_cfg );
log_init( &logger, &log_cfg );
log_info( &logger, "---- Application Init ----" );
// Click initialization.
BAROMETER3_MAP_MIKROBUS( cfg, MIKROBUS_1 );
barometer3_init( &barometer3, &cfg );
barometer3_def_cfg( &barometer3 );
Delay_ms( 100 );
barometer3_generic_read( &barometer3, BAROMETER3_PROD_ID, &status_val, 1 );
if ( status_val != BAROMETER3_PRODUCT_ID )
{
log_printf( &logger, " ERROR - wrong ID\r\n" );
log_printf( &logger, " Please restart your system.\r\n" );
for ( ; ; );
}
log_info( &logger, "---- Application Task ----" );
}

Application Task

Reads the temperature [ Celsius ] and pressure [ mBar ] and displays the results on the USB UART.

void application_task ( void )
{
barometer3_standby( &barometer3 );
log_printf( &logger, " Temperature: %.2f Celsius \r\n", temperature );
barometer3_standby( &barometer3 );
log_printf( &logger, " Pressure: %.2f mBar \r\n", pressure );
log_printf( &logger, "----------------------- \r\n" );
}

The full application code, and ready to use projects can be installed directly form compilers IDE(recommneded) or found on LibStock page or mikroE GitHub accaunt.

Other mikroE Libraries used in the example:

  • MikroSDK.Board
  • MikroSDK.Log
  • Click.Barometer3

Additional notes and informations

Depending on the development board you are using, you may need USB UART click, USB UART 2 Click or RS232 Click to connect to your PC, for development systems with no UART to USB interface available on the board. The terminal available in all Mikroelektronika compilers, or any other terminal application of your choice, can be used to read the message.


barometer3_cfg_t
Click configuration structure definition.
Definition: barometer3.h:370
pressure
float pressure
Definition: main.c:32
BAROMETER3_TMP_RATE_1
#define BAROMETER3_TMP_RATE_1
Definition: barometer3.h:165
BAROMETER3_PROD_ID
#define BAROMETER3_PROD_ID
Definition: barometer3.h:115
barometer3_cfg_temp
void barometer3_cfg_temp(barometer3_t *ctx, uint8_t temp_mr, uint8_t temp_osr)
Temperature Measurement Configuration function.
application_task
void application_task(void)
Definition: main.c:77
BAROMETER3_PM_RATE_1
#define BAROMETER3_PM_RATE_1
Definition: barometer3.h:141
barometer3_meas_prs_once
uint8_t barometer3_meas_prs_once(barometer3_t *ctx, float *result, uint8_t prs_osr)
Get Pressure Measurement Once function.
barometer3_cfg_setup
void barometer3_cfg_setup(barometer3_cfg_t *cfg)
Config Object Initialization function.
barometer3_cfg_pres
void barometer3_cfg_pres(barometer3_t *ctx, uint8_t prs_mr, uint8_t prs_osr)
Pressure Measurement Configuration function.
temperature
float temperature
Definition: main.c:33
BAROMETER3_MAP_MIKROBUS
#define BAROMETER3_MAP_MIKROBUS(cfg, mikrobus)
Definition: barometer3.h:54
barometer3_generic_read
void barometer3_generic_read(barometer3_t *ctx, uint8_t reg, uint8_t *data_buf, uint8_t len)
Generic read function.
barometer3_standby
void barometer3_standby(barometer3_t *ctx)
Standby function.
BAROMETER3_PM_PRC_128
#define BAROMETER3_PM_PRC_128
Definition: barometer3.h:156
application_init
void application_init(void)
Definition: main.c:37
BAROMETER3_SUCCESS
#define BAROMETER3_SUCCESS
Definition: barometer3.h:266
BAROMETER3_TMP_PRC_128
#define BAROMETER3_TMP_PRC_128
Definition: barometer3.h:180
barometer3_init
BAROMETER3_RETVAL barometer3_init(barometer3_t *ctx, barometer3_cfg_t *cfg)
Initialization function.
barometer3_meas_temp_once
uint8_t barometer3_meas_temp_once(barometer3_t *ctx, float *result, uint8_t temp_osr)
Get Temperature Measurement Once function.
BAROMETER3_PRODUCT_ID
#define BAROMETER3_PRODUCT_ID
Definition: barometer3.h:292
barometer3_def_cfg
void barometer3_def_cfg(barometer3_t *ctx)
Apply Default Configuration function.