pressure2

---

Pressure 2 Click

Pressure 2 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.

---

Click Library

• Author : MikroE Team
• Date : Dec 2019.
• Type : SPI type

Software Support

Example Description

This application measures pressure in range from 0 to 14 bars (with a resolution of up to 0.2 mbars), but because of the stainless steel cap enclosure, the sensor can withstand up to 30 bars of pressure.

Example Libraries

• MikroSDK.Board
• MikroSDK.Log
• Click.Pressure2

Example Key Functions

• pressure2_cfg_setup Config Object Initialization function.

void pressure2_cfg_setup ( pressure2_cfg_t *cfg ); 

• pressure2_init Initialization function.

err_t pressure2_init ( pressure2_t *ctx, pressure2_cfg_t *cfg );

• pressure2_default_cfg Click Default Configuration function.

err_t pressure2_default_cfg ( pressure2_t *ctx );

• pressure2_read_coefficient This function read calibration coefficients and return coefficient.

uint16_t pressure2_read_coefficient ( pressure2_t *ctx, uint8_t index );

• pressure2_send_cmd_adc This function preforms ADC conversion and return 24bit result.

uint32_t pressure2_send_cmd_adc ( pressure2_t *ctx, uint8_t cmd );

• pressure2_read_sensor Functions for readding sensor.

void pressure2_read_sensor ( pressure2_t *ctx, float *press, float *temp );

Application Init

Initializes driver init and chip init.

void application_init ( void )
{
    log_cfg_t log_cfg;
    pressure2_cfg_t pressure2_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.
    pressure2_cfg_setup( &pressure2_cfg );
    PRESSURE2_MAP_MIKROBUS( pressure2_cfg, MIKROBUS_1 );
    if ( SPI_MASTER_ERROR == pressure2_init( &pressure2, &pressure2_cfg ) )
    {
        log_error( &logger, " Communication init." );
        for ( ; ; );
    }
    
    if ( PRESSURE2_ERROR == pressure2_default_cfg ( &pressure2 ) )
    {
        log_error( &logger, " Default configuration." );
        for ( ; ; );
    }

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

Application Task

Reads sensor and logs to USB UART pressure and temperature every second.

void application_task ( void )
{
    pressure2_read_sensor( &pressure2, &pressure, &temperature );
    
    log_printf( &logger," Pressure: %.2f mBar\r\n", pressure );
    log_printf( &logger," Temperature: %.2f degC\r\n\n", temperature );

    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.

---