pressure12

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Pressure 12 Click

Pressure 12 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 : Luka Filipovic
• Date : Nov 2019.
• Type : ADC type

Software Support

Example Description

Reads ADC value, convert ADC data to Voltage[ mV ] and pressure [ mBar ].

Example Libraries

• MikroSDK.Board
• MikroSDK.Log
• Click.Pressure12

Example Key Functions

• pressure12_cfg_setup Config Object Initialization function.

void pressure12_cfg_setup ( pressure12_cfg_t *cfg );

• pressure12_init Initialization function.

err_t pressure12_init ( pressure12_t *ctx, pressure12_cfg_t *cfg );

• pressure12_default_cfg Click Default Configuration function.

void pressure12_default_cfg ( pressure12_t *ctx );

• pressure12_get_pressure Get pressure function.

float pressure12_get_pressure ( pressure12_t *ctx );

• pressure12_get_voltage Get voltage function.

float pressure12_get_voltage ( pressure12_t *ctx );

• pressure12_set_adc_resolution Set ADC resolution function.

void pressure12_set_adc_resolution ( pressure12_t *ctx, float adc_res );

Application Init

Initializes ADC and LOG for logging data.

void application_init ( void )
{
    log_cfg_t log_cfg;
    pressure12_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.

    pressure12_cfg_setup( &cfg );
    PRESSURE12_MAP_MIKROBUS( cfg, MIKROBUS_1 );
    if ( pressure12_init( &pressure12, &cfg ) == ADC_ERROR )
    {
        log_info( &logger, "---- Application Init Error ----" );
        log_info( &logger, "---- Please, run program again ----" );

        for ( ; ; );
    }
    log_info( &logger, "---- Application Init Done ----\r\n" );

    pressure_val = 0;
    voltage_val = 0;
}

Application Task

Reads ADC value, convert ADC data to Voltage[ mV ] on the AN pin and convert to Pressure data in mBar. All data logs to the USBUART each second.

void application_task ( void )
{
    if ( pressure12_read_pin_voltage( &pressure12, &voltage_val ) != ADC_ERROR )
    {
        log_printf( &logger, " Voltage [V] : %.2f\r\n", voltage_val );
    }

    if ( pressure12_get_pressure( &pressure12, &pressure_val ) != ADC_ERROR )
    {
        log_printf( &logger, " Pressure [mBar] : %u\r\n", pressure_val );
    }

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

Note

Output is proportional to the difference between applied pressure and atmospheric (ambient) pressure.

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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