pressure22

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Pressure 22 Click

Pressure 22 Click demo application is developed using the NECTO Studio, ensuring compatibility with mikroSDK's open-source libraries and tools. Designed for plug-and-play implementation and testing, the demo is fully compatible with all development, starter, and mikromedia boards featuring a mikroBUS™ socket.

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Click Library

• Author : Nenad Filipovic
• Date : May 2023.
• Type : I2C type

Software Support

Example Description

This library contains API for Pressure 22 Click driver. The demo application reads and calculate pressure and temperature data.

Example Libraries

• MikroSDK.Board
• MikroSDK.Log
• Click.Pressure22

Example Key Functions

• pressure22_cfg_setup Config Object Initialization function.

void pressure22_cfg_setup ( pressure22_cfg_t *cfg );

• pressure22_init Initialization function.

err_t pressure22_init ( pressure22_t *ctx, pressure22_cfg_t *cfg );

• pressure22_default_cfg Click Default Configuration function.

err_t pressure22_default_cfg ( pressure22_t *ctx );

• pressure22_get_measurement_data Pressure 22 get the measurement data function.

err_t pressure22_get_measurement_data ( pressure22_t *ctx, float *temperature, float *pressure );

• pressure22_get_calibration_data Pressure 22 gets the calibration data function.

err_t pressure22_get_calibration_data ( pressure22_t *ctx );

• pressure22_get_adc_data Pressure 22 gets the ADC data function.

err_t pressure22_get_adc_data ( pressure22_t *ctx, uint32_t *adc );

Application Init

The initialization of I2C module and log UART. After driver initialization, the app sets the default configuration.

void application_init ( void ) 
{
    log_cfg_t log_cfg;  /**< Logger config object. */
    pressure22_cfg_t pressure22_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.
    pressure22_cfg_setup( &pressure22_cfg );
    PRESSURE22_MAP_MIKROBUS( pressure22_cfg, MIKROBUS_1 );
    if ( I2C_MASTER_ERROR == pressure22_init( &pressure22, &pressure22_cfg ) ) 
    {
        log_error( &logger, " Communication init." );
        for ( ; ; );
    }
    
    if ( PRESSURE22_ERROR == pressure22_default_cfg ( &pressure22 ) )
    {
        log_error( &logger, " Default configuration." );
        for ( ; ; );
    }
    
    log_info( &logger, " Application Task " );
    log_printf( &logger, " ____________________ \r\n" );
    Delay_ms ( 100 );
}

Application Task

This example demonstrates the use of the Pressure 22 Click board™. The demo application reads and displays the Pressure [mBar] and Temperature [degree Celsius] data. Results are being sent to the UART Terminal, where you can track their changes.

void application_task ( void ) 
{   
    static float temperature, pressure;
    if ( PRESSURE22_OK == pressure22_get_measurement_data( &pressure22, &temperature, &pressure ) )
    {
        log_printf( &logger, " Temperature : %.2f degC \r\n", temperature );
        log_printf( &logger, " Pressure    : %.2f mBar \r\n", pressure );
        log_printf( &logger, " _______________________ \r\n" );
        Delay_ms ( 1000 );
    }
}

Application Output

This Click board can be interfaced and monitored in two ways:

• Application Output - Use the "Application Output" window in Debug mode for real-time data monitoring. Set it up properly by following this tutorial.
• UART Terminal - Monitor data via the UART Terminal using a USB to UART converter. For detailed instructions, check out this tutorial.

Additional Notes and Information

The complete application code and a ready-to-use project are available through the NECTO Studio Package Manager for direct installation in the NECTO Studio. The application code can also be found on the MIKROE GitHub account.

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