weather  2.0.0.0
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Weather click

Weather click carries BME280 integrated environmental unit from Bosch.

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 :

Example key functions :

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;
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.


weather_data_t::pressure
float pressure
Definition: weather.h:332
weather_data_t::temperature
float temperature
Definition: weather.h:331
weather_get_ambient_data
err_t weather_get_ambient_data(weather_t *ctx, weather_data_t *weather_data)
Weather data.
weather_data_t::humidity
float humidity
Definition: weather.h:333
application_task
void application_task(void)
Definition: main.c:65
weather_measurement_cfg_t
Measurement configuration structure definition.
Definition: weather.h:341
weather_default_cfg
err_t weather_default_cfg(weather_t *ctx)
Click Default Configuration function.
WEATHER_MAP_MIKROBUS
#define WEATHER_MAP_MIKROBUS(cfg, mikrobus)
Definition: weather.h:68
weather_cfg_setup
void weather_cfg_setup(weather_cfg_t *cfg)
Config Object Initialization function.
weather_measurement_cfg
err_t weather_measurement_cfg(weather_t *ctx, weather_measurement_cfg_t *cfg)
Measurement config.
WEATHER_OK
#define WEATHER_OK
Definition: weather.h:89
weather_cfg_t
Click configuration structure definition.
Definition: weather.h:305
weather_get_device_id
err_t weather_get_device_id(weather_t *ctx, uint8_t *device_id)
Device ID.
application_init
void application_init(void)
Definition: main.c:29
weather_init
err_t weather_init(weather_t *ctx, weather_cfg_t *cfg)
Initialization function.
weather_s
Click ctx object definition.
Definition: weather.h:285
weather_data_t
Weather data structure definition.
Definition: weather.h:330