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mikroSDK Library

Pressure 2 Click

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Author: MIKROE

Last Updated: 2024-10-31

Package Version: 2.1.0.14

mikroSDK Library: 2.0.0.0

Category: Pressure

Downloaded: 215 times

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License: MIT license  

Pressure 2 Click carries MS5803, a high resolution MEMS pressure sensor that is both precise and robust. Its measurement range is 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. Pressure 2 Click communicates with the target board MCU either through mikroBUS SPI or I2C lines, depending on the position in which the onboard jumpers are soldered.

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  • mikroSDK Library 1.0.0.0
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mikroSDK Library Blog


Pressure 2 Click

Pressure 2 Click carries MS5803, a high resolution MEMS pressure sensor that is both precise and robust.

pressure-2-click.png

Click Product page


Click library

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

Software Support

We provide a library for the Pressure2 Click as well as a demo application (example), developed using MikroElektronika compilers. The demo can run on all the main MikroElektronika development boards.

Package can be downloaded/installed directly form compilers IDE(recommended way), or downloaded from our LibStock, or found on mikroE github account.

Library Description

This library contains API for Pressure2 Click driver.

Standard 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 );

Example key functions :

  • 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 );

Examples 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.

The demo application is composed of two sections :

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 );
}

The full application code, and ready to use projects can be installed directly form compilers IDE(recommneded) or found on LibStock page or mikroE GitHub accaunt.

Other mikroE Libraries used in the example:

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

Additional notes and informations

Depending on the development board you are using, you may need USB UART Click, USB UART 2 Click or RS232 Click to connect to your PC, for development systems with no UART to USB interface available on the board. The terminal available in all Mikroelektronika compilers, or any other terminal application of your choice, can be used to read the message.


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