color2

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Color 2 click

Color 2 click carries the ISL29125 RGB color light sensor. It detects red, green and blue in a variety of lighting conditions, outputting 16-bit resolution data in a measuring range from 5.7 m lux to 10,000 lux.

click Product page

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Click library

• Author : MikroE Team
• Date : Dec 2019.
• Type : I2C type

Software Support

We provide a library for the Color2 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 Color2 Click driver.

Standard key functions :

• Config Object Initialization function.

void color2_cfg_setup ( color2_cfg_t *cfg );

• Initialization function.

COLOR2_RETVAL color2_init ( color2_t *ctx, color2_cfg_t *cfg );

• Click Default Configuration function.

void color2_default_cfg ( color2_t *ctx );

Example key functions :

• Function read blue color data from ISL29125

float color2_read_blue( color2_t *ctx );

• Function read byte of data from register address of ISL29125

uint8_t color2_read_data( color2_t *ctx, uint8_t address );

• Function write byte of data to ISL29125

void color2_write_data( color2_t *ctx, uint8_t address, uint8_t write_command );

Examples Description

Example demonstrates use of Color 2 click.

The demo application is composed of two sections :

Application Init

Initialization driver enable's - initialize ISL29125 RGB color light sensor and start write log.

void application_init ( void )
{
    log_cfg_t log_cfg;
    color2_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.

    color2_cfg_setup( &cfg );
    COLOR2_MAP_MIKROBUS( cfg, MIKROBUS_1 );
    color2_init( &color2, &cfg );
    color2_default_cfg ( &color2 );
}
  

Application Task

This is a example which demonstrates the use of Color 2 Click board. ISL29125 RGB color light sensor on Color 2 Click, detects red, green and blue in a variety of lighting conditions and outputting 16-bit resolution data on the USBUART. Also read color and check which color is detected by the sensor. If the color is detected, the detected color message is logged on the USBUART. All data logs on usb uart for aproximetly every 3 sec.

void application_task ( void )
{
    //  Task implementation.

    uint16_t value_red_color;
    uint16_t value_green_color;
    uint16_t value_blue_color;
    uint8_t is_color;
    float color_value;

    color_value = color2_get_color_value( &color2 );
    is_color = color2_get_color( color_value );

    value_green_color = color2_read_green( &color2 );
    value_red_color = color2_read_red( &color2 );
    value_blue_color = color2_read_blue( &color2 );

    switch(is_color)
    {
        case 1:
        {
            log_printf( &logger, "    *** ORANGE ***");
            break;
        }
        case 2:
        {
            log_printf( &logger, "    *** RED ***");
            break;
        }
        case 3:
        {
            log_printf( &logger, "    *** PINK ***");
            break;
        }
        case 4:
        {
            log_printf( &logger, "    *** PURPLE ***");
            break;
        }
        case 5:
        {
            log_printf( &logger, "    *** BLUE ***");
            break;
        }
        case 6:
        {
            log_printf( &logger, "    *** CYAN ***");
            break;
        }
        case 7:
        {
            log_printf( &logger, "    *** GREEN ***");
            break;
        }
        case 8:
        {
            log_printf( &logger, "    *** YELLOW ***");
            break;
        }
        default:
        {
            break;
        }
    }

    log_printf( &logger, "----------------------");
    
    log_printf( &logger, " Red  value  : %d", value_red_color);
    log_printf( &logger, " Green  value  : %d", value_green_color);
    log_printf( &logger, " Blue  value  : %d", value_blue_color);

    log_printf( &logger, "----------------------");

    Delay_1sec();
    Delay_1sec();
    Delay_1sec();
}

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.Color2

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.

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