barometer7  2.0.0.0
Main Page

Barometer 7 click

Barometer 7 Click is a compact add-on board used to measure air pressure in a specific environment. This board features the KP264XTMA1, a high-accuracy digital barometric air pressure sensor based on a capacitive principle from Infineon Technologies. The KP264XTMA1 is surface micromachined with a monolithic integrated signal conditioning circuit implemented in BiCMOS technology that converts pressure into a 10-bit digital value and sends the information via the SPI interface. It measures pressure from 40kPa up to 115kPa with an accuracy of ±1.5kPa over a wide operating temperature range.

click Product page


Click library

  • Author : Nenad Filipovic
  • Date : Dec 2021.
  • Type : SPI type

Software Support

We provide a library for the Barometer 7 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 from NECTO Studio Package Manager(recommended way), downloaded from our LibStock™ or found on Mikroe github account.

Library Description

This library contains API for Barometer 7 Click driver.

Standard key functions :

Example key functions :

Example Description

This library contains API for Barometer 7 Click driver. The demo application reads and calculate temperature and pressure data.

The demo application is composed of two sections :

Application Init

Initializes SPI driver and log UART. After driver initialization the app set default settings and display sensor identifier data.

void application_init ( void )
{
log_cfg_t log_cfg;
barometer7_cfg_t barometer7_cfg;
LOG_MAP_USB_UART( log_cfg );
log_init( &logger, &log_cfg );
log_info( &logger, " Application Init " );
// Click initialization.
barometer7_cfg_setup( &barometer7_cfg );
BAROMETER7_MAP_MIKROBUS( barometer7_cfg, MIKROBUS_1 );
if ( SPI_MASTER_ERROR == barometer7_init( &barometer7, &barometer7_cfg ) )
{
log_error( &logger, " Communication init." );
for ( ; ; );
}
if ( BAROMETER7_ERROR == barometer7_default_cfg ( &barometer7 ) )
{
log_error( &logger, " Default configuration." );
for ( ; ; );
}
log_info( &logger, " Application Task " );
Delay_ms ( 100 );;
static barometer7_identifier_t id_data;
barometer7_get_identifier ( &barometer7, &id_data );
log_printf( &logger, "--------------------------\r\n" );
log_printf( &logger, " > Supplier : %d <\r\n", ( uint16_t ) id_data.supplier );
log_printf( &logger, " > Silicon Version : %d <\r\n", ( uint16_t ) id_data.silicon_version );
log_printf( &logger, " > Metal Version : %d <\r\n", ( uint16_t ) id_data.metal_version );
log_printf( &logger, " > ASCI Name : %c <\r\n", id_data.asic_name );
log_printf( &logger, "--------------------------\r\n" );
Delay_ms ( 1000 );
}

Application Task

This is an example that demonstrates the use of the Barometer 7 Click boardâ„¢. In this example, display the Pressure ( mBar ) and Temperature ( degree Celsius ) data. Results are being sent to the Usart Terminal where you can track their changes.

void application_task ( void )
{
static float pressure;
static float temperature;
barometer7_get_pressure( &barometer7, &pressure );
if ( BAROMETER7_NO_ERROR != barometer7.diagnosis )
{
display_error( );
}
log_printf( &logger, " Pressure : %.0f mbar\r\n", pressure );
barometer7_get_temperature( &barometer7, &temperature );
if ( BAROMETER7_NO_ERROR != barometer7.diagnosis )
{
display_error( );
}
log_printf( &logger, " Temperature : %.2f C\r\n", temperature );
log_printf( &logger, "--------------------------\r\n" );
Delay_ms ( 1000 );
Delay_ms ( 1000 );
}

Additional Function

  • display_error This function displays diagnosis error messages.
    static void display_error ( void );

The full application code, and ready to use projects can be installed directly from NECTO Studio Package Manager(recommended way), downloaded from our LibStock™ or found on Mikroe github account.

Other Mikroe Libraries used in the example:

  • MikroSDK.Board
  • MikroSDK.Log
  • Click.Barometer7

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. UART terminal is available in all MikroElektronika compilers.


barometer7_cfg_t
Barometer 7 Click configuration object.
Definition: barometer7.h:150
barometer7_t
Barometer 7 Click context object.
Definition: barometer7.h:134
BAROMETER7_SET_DATA_SAMPLE_EDGE
#define BAROMETER7_SET_DATA_SAMPLE_EDGE
Data sample selection.
Definition: barometer7.h:101
barometer7_init
err_t barometer7_init(barometer7_t *ctx, barometer7_cfg_t *cfg)
Barometer 7 initialization function.
BAROMETER7_ERROR
@ BAROMETER7_ERROR
Definition: barometer7.h:184
application_task
void application_task(void)
Definition: main.c:111
barometer7_identifier_t::supplier
uint8_t supplier
Definition: barometer7.h:170
barometer7_cfg_setup
void barometer7_cfg_setup(barometer7_cfg_t *cfg)
Barometer 7 configuration object setup function.
barometer7_get_identifier
err_t barometer7_get_identifier(barometer7_t *ctx, barometer7_identifier_t *identifier)
Barometer 7 get identifier function.
barometer7_identifier_t::asic_name
uint8_t asic_name
Definition: barometer7.h:173
BAROMETER7_NO_ERROR
@ BAROMETER7_NO_ERROR
Definition: barometer7.h:200
application_init
void application_init(void)
Definition: main.c:63
barometer7_identifier_t
Barometer 7 Click response structure for identifier.
Definition: barometer7.h:169
barometer7_get_temperature
err_t barometer7_get_temperature(barometer7_t *ctx, float *temperature)
Barometer 7 get temperature function.
barometer7_default_cfg
err_t barometer7_default_cfg(barometer7_t *ctx)
Barometer 7 default configuration function.
BAROMETER7_MAP_MIKROBUS
#define BAROMETER7_MAP_MIKROBUS(cfg, mikrobus)
MikroBUS pin mapping.
Definition: barometer7.h:120
barometer7_identifier_t::silicon_version
uint8_t silicon_version
Definition: barometer7.h:171
barometer7_get_pressure
err_t barometer7_get_pressure(barometer7_t *ctx, float *pressure)
Barometer 7 get pressure function.
barometer7_identifier_t::metal_version
uint8_t metal_version
Definition: barometer7.h:172