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Author: MIKROE
Last Updated: 2024-10-31
Package Version: 2.1.0.16
mikroSDK Library: 2.0.0.0
Category: Optical
Downloaded: 220 times
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License: MIT license
UV 2 Click is a mikroBUS™ add-on board with a VEML6075 UVA and UVB light sensor. VEML6075 is a CMOS chip that incorporates a photodiode, amplifiers,and analog/digital circuits.
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UV 2 Click is a mikroBUS™ add-on board with a VEML6075 UVA and UVB light sensor. VEML6075 is a CMOS chip that incorporates a photodiode, amplifiers, and analog/digital circuits.
We provide a library for the UV2 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 UV2 Click driver.
Config Object Initialization function.
void uv2_cfg_setup ( uv2_cfg_t *cfg );
Initialization function.
UV2_RETVAL uv2_init ( uv2_t ctx, uv2_cfg_t cfg );
Click Default Configuration function.
void uv2_default_cfg ( uv2_t *ctx );
This function set active force mode by write force mode UV_AF bit to config register of VEML6075 sesnor on UV 2 Click.
void uv2_set_active_force_mode ( uv2_t *ctx, uint8_t force_mode );
This function get UVA data by read UVA register value of VEML6075 sesnor on UV 2 Click.
uint16_t uv2_get_uva ( uv2_t *ctx );
This function get UVB data by read UVB register value of VEML6075 sesnor on UV 2 Click.
uint16_t uv2_get_uvb ( uv2_t *ctx );
This app measurement UVA and UVB data and calculate UV index level.
The demo application is composed of two sections :
Initialization device and set default cinfiguration.
void application_init ( void )
{
log_cfg_t log_cfg;
uv2_cfg_t cfg;
uint8_t state_id;
/**
* 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 ----\r\n" );
// Click initialization.
uv2_cfg_setup( &cfg );
UV2_MAP_MIKROBUS( cfg, MIKROBUS_1 );
uv2_init( &uv2, &cfg );
Delay_ms ( 100 );
log_printf( &logger, "------------------------\r\n" );
log_printf( &logger, " UV 2 Click \r\n" );
log_printf( &logger, "------------------------\r\n" );
uv2_default_cfg( &uv2 );
state_id = uv2_check_id( &uv2 );
if ( state_id )
{
log_printf( &logger, " Configured \r\n" );
}
else
{
log_printf( &logger, " ERROR \r\n" );
}
log_printf( &logger, "------------------------\r\n" );
Delay_ms ( 100 );
}
This is a example which demonstrates the use of UV 2 Click board. UV 2 Click communicates with VEML6075 sesnor via I2C by write to register and read from register. This example measurement UVA and UVB data, calculate UV index level and write log. Results are being sent to the Usart Terminal where you can track their changes. All data logs write on usb uart changes for every 2 sec.
void application_task ( void )
{
uint16_t val_uva;
uint16_t val_uvb;
float uv_index;
val_uva = uv2_get_uva( &uv2 );
log_printf( &logger, " UVA data = %d \r\n", val_uva );
val_uvb = uv2_get_uvb( &uv2 );
log_printf( &logger, " UVB data = %d \r\n", val_uvb );
uv_index = uv2_get_uv_index( &uv2 );
log_printf( &logger, " UV Index = %f \r\n", uv_index );
log_printf( &logger, "------------------------\r\n" );
Delay_ms ( 1000 );
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:
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.