diffpress2  2.0.0.0
Main Page

Diff Press 2 click

<PRVIH_PAR_RECENICA_SA_PRODUCT_PAGE_DA_ISPRATE_CELINU>

[click Product page](<CLICK_PRODUCT_PAGE_LINK>)


Click library

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

Software Support

We provide a library for the DiffPress2 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 DiffPress2 Click driver.

Standard key functions :

Example key functions :

Example Description

This example application showcases ability for device

to read and calculate mass flow or diff press pressure in Pascals and temperature in degrees Celsius.

The demo application is composed of two sections :

Application Init

Initialization of module communication(I2C, UART) and

additional interrupt pin. Resets device and reads serial and product ID's and logs them.

void application_init ( void )
{
log_cfg_t log_cfg;
diffpress2_cfg_t diffpress2_cfg;
// Logger initialization.
LOG_MAP_USB_UART( log_cfg );
log_cfg.level = LOG_LEVEL_DEBUG;
log_cfg.baud = 115200;
log_init( &logger, &log_cfg );
log_info( &logger, " Application Init " );
// Click initialization.
diffpress2_cfg_setup( &diffpress2_cfg );
DIFFPRESS2_MAP_MIKROBUS( diffpress2_cfg, MIKROBUS_1 );
err_t init_flag = diffpress2_init( &diffpress2, &diffpress2_cfg );
if ( I2C_MASTER_ERROR == init_flag )
{
log_error( &logger, " Application Init Error. " );
log_info( &logger, " Please, run program again... " );
for ( ; ; );
}
if ( diffpress2_default_cfg ( &diffpress2 ) )
{
log_error( &logger, " Default configuration." );
for ( ; ; );
}
log_printf( &logger, " > Product ID: 0x%.8LX\r\n", diffpress2.product_id );
log_printf( &logger, " > Serial ID: 0x%.8LX%.8LX\r\n",
diffpress2.serial_id[ 0 ], diffpress2.serial_id[ 1 ] );
log_info( &logger, " Application Task " );
}

Application Task

Read and calculate differential in Pascal and temperautre

in degrees Celsius every 300ms.

void application_task ( void )
{
float pressure;
float temperature;
&pressure, &temperature ) )
{
log_error( &logger, " Read data." );
}
else
{
log_printf( &logger, " > Pressure[Pa]: %.2f\r\n", pressure );
log_printf( &logger, " > Temperature[degC]: %.2f\r\n", temperature );
log_printf( &logger, "*************************************\r\n" );
}
Delay_ms( 300 );
}

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.DiffPress2

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.


diffpress2_default_cfg
err_t diffpress2_default_cfg(diffpress2_t *ctx)
Diff Press 2 default configuration function.
DIFFPRESS2_MAP_MIKROBUS
#define DIFFPRESS2_MAP_MIKROBUS(cfg, mikrobus)
MikroBUS pin mapping.
Definition: diffpress2.h:115
application_task
void application_task(void)
Definition: main.c:68
diffpress2_init
err_t diffpress2_init(diffpress2_t *ctx, diffpress2_cfg_t *cfg)
Diff Press 2 initialization function.
diffpress2_t
Diff Press 2 Click context object.
Definition: diffpress2.h:127
diffpress2_reset
err_t diffpress2_reset(diffpress2_t *ctx)
Reset device.
diffpress2_trigger_measurement
err_t diffpress2_trigger_measurement(diffpress2_t *ctx, uint16_t trigger_type, float *diff_press, float *temperature)
Pressure and temperature reading.
diffpress2_get_id
err_t diffpress2_get_id(diffpress2_t *ctx)
Reads device ID's.
application_init
void application_init(void)
Definition: main.c:32
diffpress2_cfg_setup
void diffpress2_cfg_setup(diffpress2_cfg_t *cfg)
Diff Press 2 configuration object setup function.
DIFFPRESS2_CMD_TRIGGER_MEAS_DIFF_PRESS
#define DIFFPRESS2_CMD_TRIGGER_MEAS_DIFF_PRESS
Definition: diffpress2.h:65
diffpress2_cfg_t
Diff Press 2 Click configuration object.
Definition: diffpress2.h:148