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Diff Press 3 Click

Diff Press 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.

Click Library

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

Software Support

Example Description

This library contains API for the Diff Press 3 Click driver. This demo application shows an example of differential pressure and temperature measurement.

Example Libraries

  • MikroSDK.Board
  • MikroSDK.Log
  • Click.DiffPress3

Example Key Functions

  • diffpress3_cfg_setup Config Object Initialization function.
void diffpress3_cfg_setup ( diffpress3_cfg_t *cfg );
  • diffpress3_init Initialization function.
err_t diffpress3_init ( diffpress3_t *ctx, diffpress3_cfg_t *cfg );
  • diffpress3_get_pressure Diff Press 3 get pressure function.
err_t diffpress3_get_pressure ( diffpress3_t *ctx, float *pressure );
  • diffpress3_get_temperature Diff Press 3 get temperature function.
err_t diffpress3_get_temperature ( diffpress3_t *ctx, float *temperature );
  • diffpress3_read_raw_adc Diff Press 3 read raw ADC value function.
err_t diffpress3_read_raw_adc ( diffpress3_t *ctx, uint16_t *raw_adc, diffpress3_d_sel_t data_sel );

Application Init

Initialization of I2C and ADC module and log UART.

void application_init ( void )
{
    log_cfg_t log_cfg;  /**< Logger config object. */
    diffpress3_cfg_t diffpress3_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.
    diffpress3_cfg_setup( &diffpress3_cfg );
    DIFFPRESS3_MAP_MIKROBUS( diffpress3_cfg, MIKROBUS_1 );
    err_t init_flag = diffpress3_init( &diffpress3, &diffpress3_cfg );
    if ( ( ADC_ERROR == init_flag ) || ( I2C_MASTER_ERROR == init_flag ) )
    {
        log_error( &logger, " Communication init." );
        for ( ; ; );
    }
    
    log_info( &logger, " Application Task " );
    log_printf( &logger, "---------------------\r\n" );
    Delay_ms ( 100 );
}

Application Task

This example demonstrates the use of the Diff Press 3 Click board™. The demo application measures and display the Differential Pressure [kPa] and Temperature [degree Celsius] data. Results are being sent to the UART Terminal, where you can track their changes.

void application_task ( void ) 
{
    float pressure, temperature;
    if ( DIFFPRESS3_OK == diffpress3_get_pressure( &diffpress3, &pressure ) )
    {
        log_printf( &logger, " Diff Pressure: %.3f [kPa]\r\n", pressure );
        Delay_ms ( 100 );
    }
    if ( DIFFPRESS3_OK == diffpress3_get_temperature( &diffpress3, &temperature ) )
    {
        log_printf( &logger, " Temperature: %.2f [C]\r\n", temperature );
        Delay_ms ( 100 );
    }
    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.