uv3

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UV 3 Click

UV 3 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 : Jan 2020.
• Type : I2C type

Software Support

Example Description

Converts solar UV light intensity to digital data and measure UV radiation under long time solar UV exposure.

Example Libraries

• MikroSDK.Board
• MikroSDK.Log
• Click.Uv3

Example Key Functions

• uv3_cfg_setup Config Object Initialization function.

void uv3_cfg_setup ( uv3_cfg_t *cfg );

• uv3_init Initialization function.

err_t uv3_init ( uv3_t *ctx, uv3_cfg_t *cfg );

• uv3_default_cfg Click Default Configuration function.

void uv3_default_cfg ( uv3_t *ctx );

• uv3_enable_sensor Function enable sensor by sets shutdown mode bits as LOW to the target 8-bit CMD slave address.

void uv3_enable_sensor ( uv3_t *ctx );

• uv3_read_measurements Function read UV data measurements from to the two target 8-bit slave address.

uint16_t uv3_read_measurements ( uv3_t *ctx );

• uv3_risk_level Function calculate UV risk level of VEML6070 sensor on UV 3 Click.

uint8_t uv3_risk_level ( uint16_t uv_data );

Application Init

Initialization driver enable's - I2C, enable sensor and start write log.

void application_init ( void )
{
    log_cfg_t log_cfg;
    uv3_cfg_t 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.

    uv3_cfg_setup( &cfg );
    UV3_MAP_MIKROBUS( cfg, MIKROBUS_1 );
    uv3_init( &uv3, &cfg );
    uv3_default_cfg ( &uv3 );
}

  

Application Task

This example measures the level of the UV light and logs every 2 seconds to the terminal.

void application_task ( void )
{
    uv_data = uv3_read_measurements( &uv3 );

    risk_lvl = uv3_risk_level( uv_data );

    log_printf( &logger, " UV value  : %d\r\n ", uv_data );

    log_printf( &logger, " Radiation lvl : " );

    if ( risk_lvl == UV3_RAD_LOW )
    {
        log_printf( &logger, " Low\r\n " );
    }

    if ( risk_lvl == UV3_RAD_MODERATE )
    {
        log_printf( &logger, " Moderate\r\n " );
    }

    if ( risk_lvl == UV3_RAD_HIGH )
    {
        log_printf( &logger, " High\r\n " );
    }

    if ( risk_lvl == UV3_RAD_VERY_HIGH )
    {
        log_printf( &logger, " Very High\r\n " );
    }

    if ( risk_lvl == UV3_RAD_EXTREME )
    {
        log_printf( &logger, " Extreme\r\n " );
    }

    Delay_ms ( 1000 );
    Delay_ms ( 1000 );
}

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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