altitude5  2.0.0.0
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Altitude 5 click

Altitude 5 Click is a compact add-on board allowing high-resolution barometric pressure measurement. This board features the KP236, an analog barometric air pressure sensor based on a capacitive principle from Infineon Technologies. The KP236 is primarily developed for measuring barometric air pressure but can also be used in other application fields. It is surface micro-machined with a monolithic integrated signal conditioning circuit implemented in BiCMOS technology. The calibrated transfer function converts pressure into an analog output signal in a range of 40kPa to 115kPa. However, the choice of signal processing is up to the user; more precisely, the user can process the output signal in analog or digital form. The high accuracy and the high sensitivity of the KP236 make this Click boardâ„¢ suitable for advanced automotive applications and industrial and consumer applications.

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Click library

  • Author : Nenad Filipovic
  • Date : Sep 2021.
  • Type : I2C type

Software Support

We provide a library for the Altitude5 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 Altitude5 Click driver.

Standard key functions :

Example key functions :

Example Description

This library contains API for Altitude 5 Click driver. The demo application reads ADC value, calculate pressure and altitude.

The demo application is composed of two sections :

Application Init

Initializes I2C or analog driver and log UART. After driver initialization the app set default settings.

void application_init ( void )
{
log_cfg_t log_cfg;
altitude5_cfg_t altitude5_cfg;
LOG_MAP_USB_UART( log_cfg );
log_init( &logger, &log_cfg );
log_info( &logger, " Application Init " );
// Click initialization.
altitude5_cfg_setup( &altitude5_cfg );
ALTITUDE5_MAP_MIKROBUS( altitude5_cfg, MIKROBUS_1 );
err_t init_flag = altitude5_init( &altitude5, &altitude5_cfg );
if ( I2C_MASTER_ERROR == init_flag )
{
log_error( &logger, " Application Init Error. " );
log_info( &logger, " Please, run program again... " );
for ( ; ; );
}
altitude5_default_cfg ( &altitude5 );
log_info( &logger, " Application Task " );
log_printf( &logger, "----------------------------\r\n" );
Delay_ms( 100 );
}

Application Task

This is an example that demonstrates the use of the Altitude 5 Click boardâ„¢. In this example, we read ADC values and display the Pressure ( mBar ) and Altitude ( m ) data. Results are being sent to the Usart Terminal where you can track their changes.

void application_task ( void )
{
static float pressure;
static float altitude;
altitude5_get_pressure( &altitude5, &pressure );
log_printf( &logger, " Pressure : %.2f mBar \r\n", pressure );
Delay_ms( 100 );
altitude5_get_altitude( &altitude5, &altitude );
log_printf( &logger, " Altitude : %.2f m \r\n", altitude );
log_printf( &logger, "----------------------------\r\n" );
Delay_ms( 1000 );
}

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.Altitude5

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.


altitude5_default_cfg
err_t altitude5_default_cfg(altitude5_t *ctx)
Altitude 5 default configuration function.
altitude5_get_altitude
err_t altitude5_get_altitude(altitude5_t *ctx, float *altitude)
Altitude 5 get altitude function.
application_task
void application_task(void)
Definition: main.c:68
altitude5_get_pressure
err_t altitude5_get_pressure(altitude5_t *ctx, float *pressure)
Altitude 5 get pressure function.
altitude5_cfg_t
Altitude 5 Click configuration object.
Definition: altitude5.h:128
altitude5_init
err_t altitude5_init(altitude5_t *ctx, altitude5_cfg_t *cfg)
Altitude 5 initialization function.
altitude5_s
Altitude 5 Click context object.
Definition: altitude5.h:104
application_init
void application_init(void)
Definition: main.c:32
altitude5_cfg_setup
void altitude5_cfg_setup(altitude5_cfg_t *cfg)
Altitude 5 configuration object setup function.
altitude5_get_adc_voltage
err_t altitude5_get_adc_voltage(altitude5_t *ctx, float *adc_vtg)
Altitude 5 get ADC voltage function.
ALTITUDE5_MAP_MIKROBUS
#define ALTITUDE5_MAP_MIKROBUS(cfg, mikrobus)
MikroBUS pin mapping.
Definition: altitude5.h:82