uv4  2.0.0.0
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UV 4 click

UV 4 click is a powerful Ultra Violet (UV) sensing device and Ambient Light Sensor (ALS) Click board, featuring a sensor with a very wide dynamic range of detectable light intensity, across two ADC range settings.

click Product page


Click library

Software Support

We provide a library for the UV4 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 UV4 Click driver.

Standard key functions :

Example key functions :

Examples Description

Reads all configured measurements from selected channels and logs results every 500ms.

The demo application is composed of two sections :

Application Init

Initializes driver, performs reset command and enables selected channels.

void application_init ( void )
{
log_cfg_t log_cfg;
uv4_cfg_t cfg;
// Logger initialization.
log_cfg.level = LOG_LEVEL_DEBUG;
LOG_MAP_USB_UART( log_cfg );
log_init( &logger, &log_cfg );
log_info( &logger, "---- Application Init ----" );
// Click initialization.
uv4_cfg_setup( &cfg );
UV4_MAP_MIKROBUS( cfg, MIKROBUS_1 );
uv4_init( &uv4, &cfg );
uv4_default_cfg( &uv4 );
}

Application Task

Reads all configured measurements from selected channels and logs results every 500ms.

void application_task ( void )
{
uint8_t cnt;
uint8_t pom = 1;
uint32_t data_r[ 6 ];
uv4_read_measurements( &uv4, &data_r[ 0 ] );
for ( cnt = 0; cnt < 6; cnt++ )
{
if ( uv4.config_byte & pom )
{
switch ( uv4.optical_data[ cnt ] )
{
{
log_printf( &logger, "Small IR: " );
break;
}
{
log_printf( &logger, "Medium IR: " );
break;
}
{
log_printf( &logger, "Large IR: " );
break;
}
{
log_printf( &logger, "White : " );
break;
}
{
log_printf( &logger, "Large White: " );
break;
}
{
log_printf( &logger, "UV: " );
break;
}
{
log_printf( &logger, "UV-Deep: " );
break;
}
default:
{
break;
}
}
log_printf( &logger, "%d\r\n", data_r[ cnt ] );
}
pom <<= 1;
}
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.