pressure9

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Pressure 9 Click

Pressure 9 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 : Jovan Stajkovic
• Date : nov 2019.
• Type : I2C/SPI type

Software Support

Example Description

The demo application displays the pressure and temperature measurement using Pressure 9 Click.

Example Libraries

• MikroSDK.Board
• MikroSDK.Log
• Click.Pressure9

Example Key Functions

• pressure9_cfg_setup Config Object Initialization function.

void pressure9_cfg_setup ( pressure9_cfg_t *cfg ); 

• pressure9_init Initialization function.

err_t pressure9_init ( pressure9_t *ctx, pressure9_cfg_t *cfg );

• pressure9_default_cfg Click Default Configuration function.

void pressure9_default_cfg ( pressure9_t *ctx );

• pressure9_get_pressure_data Get Pressure data in mBar

float pressure9_get_pressure_data ( pressure9_t *ctx );

• pressure9_get_temperature_data Get Temperature data in C

float pressure9_get_temperature_data ( pressure9_t *ctx );

• pressure9_configuration Writing data to the configuration registers

void pressure9_configuration ( pressure9_t *ctx, uint8_t reg_adr, uint8_t data_in );

Application Init

Initialization the driver, test comunication, and performs the Click default configuration.

void application_init ( void )
{
    log_cfg_t log_cfg;
    pressure9_cfg_t cfg;

    /** 
     * 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.
    pressure9_cfg_setup( &cfg );
    PRESSURE9_MAP_MIKROBUS( cfg, MIKROBUS_POSITION_PRESSURE9 );
    pressure9_init( &pressure9, &cfg );
    Delay_ms ( 100 );

    // Test comunication
    uint8_t product_id = 0;
    pressure9_generic_read( &pressure9, PRESSURE9_REG_PRODUCT_ID, &product_id, 1 );
    if ( PRESSURE9_PRODUCT_ID != product_id )
    {
        log_error( &logger, "Read product ID." );
        for ( ; ; );
    }

    pressure9_default_cfg( &pressure9 );
    Delay_ms ( 100 );

    log_info( &logger, " Application Task " );
} 

Application Task

Reads Temperature data in [C] and Pressure data in [mBar] and this data logs to the USB UART every 2 sec.

void application_task ( void )
{
    pressure = pressure9_get_pressure_data( &pressure9 );
    log_printf( &logger, " Pressure: %.2f mBar\r\n", pressure );

    temperature = pressure9_get_temperature_data( &pressure9 );
    log_printf( &logger, " Temperature: %.2f degC\r\n", temperature );

    log_printf( &logger, "-----------------------------\r\n" );
    Delay_ms ( 1000 );
    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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