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mikroSDK Library

Weather Click

Rating:

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Author: MIKROE

Last Updated: 2024-10-31

Package Version: 2.1.0.25

mikroSDK Library: 2.0.0.0

Category: Environmental

Downloaded: 666 times

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License: MIT license  

Weather Click carries BME280 integrated environmental unit from Bosch.

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  • mikroSDK Library 1.0.0.0
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mikroSDK Library Blog


Weather Click

Weather Click carries BME280 integrated environmental unit from Bosch.

weather_click.png

Click Product page


Click library

  • Author : MikroE Team
  • Date : okt 2019.
  • Type : I2C/SPI type

Software Support

We provide a library for the Weather 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 Weather Click driver.

Standard key functions :

  • weather_cfg_setup Config Object Initialization function.

    void weather_cfg_setup ( weather_cfg_t *cfg ); 
  • weather_init Initialization function.

    err_t weather_init ( weather_t *ctx, weather_cfg_t *cfg );
  • weather_default_cfg Click Default Configuration function.

    err_t weather_default_cfg ( weather_t *ctx );

Example key functions :

  • weather_get_ambient_data Use this function to read the temperature, pressure and humidity data

    err_t weather_get_ambient_data( weather_t *ctx, weather_data_t *weather_data );
  • weather_get_device_id You can use this function as a check on Click communication with your MCU.

    err_t weather_get_device_id ( weather_t *ctx, uint8_t *device_id );
  • weather_measurement_cfg Use this function to set up new settings

    err_t weather_measurement_cfg ( weather_t *ctx, weather_measurement_cfg_t *cfg );

Example Description

This demo-app shows the temperature, pressure and humidity measurement using Weather Click.

The demo application is composed of two sections :

Application Init

Configuring clicks and log objects. Setting the Click in the default configuration to start the measurement.

void application_init ( void )
{
    log_cfg_t log_cfg;
    weather_cfg_t weather_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.
    weather_cfg_setup( &weather_cfg );
    WEATHER_MAP_MIKROBUS( weather_cfg, MIKROBUS_1 );
    if ( WEATHER_OK != weather_init( &weather, &weather_cfg ) )
    {
        log_error( &logger, " Communication init." );
        for ( ; ; );
    }

    if ( WEATHER_OK != weather_default_cfg ( &weather ) )
    {
        log_error( &logger, " Default configuration." );
        for ( ; ; );
    }

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

Application Task

Reads Temperature data, Relative Humidity data and Pressure data, and displays them on USB UART every 1500ms.

void application_task ( void )
{
    weather_data_t weather_data;

    if ( WEATHER_OK == weather_get_ambient_data( &weather, &weather_data ) )
    {
        log_printf( &logger, " \r\n ---- Weather data ----- \r\n" );
        log_printf( &logger, "[PRESSURE]: %.2f mBar.\n\r", weather_data.pressure );
        log_printf( &logger, "[TEMPERATURE]: %.2f C.\n\r", weather_data.temperature );
        log_printf( &logger, "[HUMIDITY]: %.2f %%.\n\r", weather_data.humidity );

        Delay_ms ( 1000 );
        Delay_ms ( 500 );
    }
}

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.Weather

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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