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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: 654 times
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License: MIT license
Weather Click carries BME280 integrated environmental unit from Bosch.
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Weather Click carries BME280 integrated environmental unit from Bosch.
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.
This library contains API for Weather Click driver.
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 );
This demo-app shows the temperature, pressure and humidity measurement using Weather Click.
The demo application is composed of two sections :
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 " );
}
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:
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.