barometer3

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Barometer 3 Click

Barometer 3 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 : MikroE Team
• Date : Jul 2020.
• Type : I2C/SPI type

Software Support

Example Description

This example demonstrates the use of Barometer 3 Click board.

Example Libraries

• MikroSDK.Board
• MikroSDK.Log
• Click.Barometer3

Example Key Functions

• barometer3_cfg_setup Config Object Initialization function.

void barometer3_cfg_setup ( barometer3_cfg_t *cfg );

• barometer3_init Initialization function.

err_t barometer3_init ( barometer3_t *ctx, barometer3_cfg_t *cfg );

• barometer3_def_cfg Click Default Configuration function.

void barometer3_def_cfg ( barometer3_t *ctx );

• barometer3_cfg_temp Temperature Measurement Configuration function.

void barometer3_cfg_temp ( barometer3_t *ctx, uint8_t temp_mr, uint8_t temp_osr );

• barometer3_meas_temp_once Get Temperature Measurement Once function.

uint8_t barometer3_meas_temp_once ( barometer3_t *ctx, float *result, uint8_t temp_osr );

• barometer3_meas_prs_once Get Pressure Measurement Once function.

uint8_t barometer3_meas_prs_once ( barometer3_t *ctx, float *result, uint8_t prs_osr );

Application Init

Initializes the driver, sets the Click board default configuration and check the communication by reading the device ID.

void application_init ( void )
{
    log_cfg_t log_cfg;
    barometer3_cfg_t cfg;
    uint8_t status_val;

    /** 
     * 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.

    barometer3_cfg_setup( &cfg );
    BAROMETER3_MAP_MIKROBUS( cfg, MIKROBUS_1 );
    barometer3_init( &barometer3, &cfg );

    barometer3_def_cfg( &barometer3 );
    Delay_ms ( 100 );
    
    barometer3_generic_read( &barometer3, BAROMETER3_PROD_ID, &status_val, 1 );
    
    if ( status_val != BAROMETER3_PRODUCT_ID )
    {
        
        log_printf( &logger, " ERROR - wrong ID\r\n" );
        log_printf( &logger, " Please restart your system.\r\n" );
        for ( ; ; );
    }
    log_info( &logger, "---- Application Task ----" );
}

Application Task

Reads the temperature [ Celsius ] and pressure [ mBar ] and displays the results on the USB UART.

void application_task ( void )
{
    barometer3_cfg_temp( &barometer3, BAROMETER3_TMP_RATE_1, BAROMETER3_TMP_PRC_128 );
    barometer3_standby( &barometer3 );
    while ( BAROMETER3_SUCCESS != barometer3_meas_temp_once( &barometer3, &temperature, BAROMETER3_TMP_PRC_128 ) );
    log_printf( &logger, " Temperature: %.2f Celsius \r\n", temperature );
    
    barometer3_cfg_pres( &barometer3, BAROMETER3_PM_RATE_1, BAROMETER3_PM_PRC_128 );
    barometer3_standby( &barometer3 );
    while ( BAROMETER3_SUCCESS != barometer3_meas_prs_once( &barometer3, &pressure, BAROMETER3_PM_PRC_128 ) );
    log_printf( &logger, " Pressure: %.2f mBar \r\n", pressure );
    log_printf( &logger, "----------------------- \r\n" );
}

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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