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\mainpage Main Page

Pressure 13 Click

Pressure 13 Click is a compact add-on board that contains an integrated pressure sensor for manifold air pressure measurement applications. This board features the KP229E2701, a miniaturized analog manifold air pressure sensor based on a capacitive principle from Infineon.

Click Product page

Click library

  • Author : Stefan Ilic
  • Date : Aug 2021.
  • Type : ADC type

Software Support

We provide a library for the Pressure13 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 Pressure13 Click driver.

Standard key functions :

  • pressure13_cfg_setup Config Object Initialization function.
void pressure13_cfg_setup ( pressure13_cfg_t *cfg );
  • pressure13_init Initialization function.
err_t pressure13_init ( pressure13_t *ctx, pressure13_cfg_t *cfg );

Example key functions :

  • pressure13_read_an_pin_value Pressure 13 read AN pin value function.
err_t pressure13_read_an_pin_value ( pressure13_t *ctx, uint16_t *data_out );
  • pressure13_read_an_pin_voltage Pressure 13 read AN pin voltage level function.
err_t pressure13_read_an_pin_voltage ( pressure13_t *ctx, float *data_out );
  • pressure13_get_pressure Pressure 13 get pressure function.
err_t pressure13_get_pressure ( pressure13_t *ctx, float *data_out );

Example Description

This is an example which demonstrates the use of Pressure 13 Click board.

The demo application is composed of two sections :

Application Init

Initialization driver enables - GPIO, initializes ADC, also write log.

void application_init ( void ) {
    log_cfg_t log_cfg;  /**< Logger config object. */
    pressure13_cfg_t pressure13_cfg;  /**< Click config object. */

    /** 
     * Logger initialization.
     * Default baud rate: 115200
     * Default log level: LOG_LEVEL_DEBUG
     * @note If USB_UART_RX and USB_UART_TX 
     * are defined as HAL_PIN_NC, you will 
     * need to define them manually for log to work. 
     * See @b LOG_MAP_USB_UART macro definition for detailed explanation.
     */
    LOG_MAP_USB_UART( log_cfg );
    log_init( &logger, &log_cfg );
    log_info( &logger, " Application Init " );

    // Click initialization.
    pressure13_cfg_setup( &pressure13_cfg );
    PRESSURE13_MAP_MIKROBUS( pressure13_cfg, MIKROBUS_1 );
    if ( ADC_ERROR == pressure13_init( &pressure13, &pressure13_cfg ) )
    {
        log_error( &logger, " Application Init Error. " );
        log_info( &logger, " Please, run program again... " );

        for ( ; ; );
    }
    log_info( &logger, " Application Task " );
    log_printf( &logger, "-------------------------\r\n", voltage_val );
}

Application Task

Measure and display pressure ( mBar ). Results are being sent to the Usart Terminal where you can track their changes. All data logs on usb uart approximately every sec.

void application_task ( void ) {
    if ( pressure13_get_pressure( &pressure13, &pressure_val ) != ADC_ERROR ) {
        log_printf( &logger, " Pressure: %.3f [mBar]\r\n", pressure_val );
    }
    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.Pressure13

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.