weather

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Weather Click

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

Software Support

Example Description

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

Example Libraries

• MikroSDK.Board
• MikroSDK.Log
• Click.Weather

Example 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 );

• 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 );

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 );
    }
}

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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