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Matrix RGB Click

Matrix RGB 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.

Click Library

  • Author : MikroE Team
  • Date : dec 2019.
  • Type : SPI type

Software Support

Example Description

This application is used for powering 16x32 RGB LED matrices.

Example Libraries

  • MikroSDK.Board
  • MikroSDK.Log
  • Click.MatrixRGB

Example Key Functions

  • matrixrgb_cfg_setup Config Object Initialization function.
void matrixrgb_cfg_setup ( matrixrgb_cfg_t *cfg );
  • matrixrgb_init Initialization function.
err_t matrixrgb_init ( matrixrgb_t *ctx, matrixrgb_cfg_t *cfg );
  • matrixrgb_pattern_settings Click Pattern Settings ( Default Configuration ) function.
void matrixrgb_pattern_settings ( matrixrgb_t *ctx, uint8_t pattern_type, uint16_t pattern_delay_us );
  • matrixrgb_set_power Set Power.
void matrixrgb_set_power ( matrixrgb_t *ctx, uint8_t power_state );
  • matrixrgb_set_brightness Set Brightness.
void matrixrgb_set_brightness ( matrixrgb_t *ctx, uint8_t brightness );
  • matrixrgb_write_pixel Write Pixel.
uint8_t matrixrgb_write_pixel ( matrixrgb_t *ctx, uint16_t x, uint16_t y, uint16_t color );

Application Init

Initializes driver, reset device and initializes firmware depend on pattern used alongside with fonts

void application_init ( void )
{
    log_cfg_t log_cfg;
    matrixrgb_cfg_t cfg;
    matrixrgb_font_t font_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.

    matrixrgb_cfg_setup( &cfg );
    MATRIXRGB_MAP_MIKROBUS( cfg, MIKROBUS_1 );
    matrixrgb_init( &matrixrgb, &cfg );

    matrixrgb_device_reset( &matrixrgb );

    matrixrgb_pattern_settings ( &matrixrgb, MATRIXRGB_PATTERN_1_MAP_6MM, 1000 );
    matrixrgb_set_power( &matrixrgb, 1 );
    Delay_ms ( 1000 );
    
    font_cfg.p_font       = Arial9x9;
    font_cfg.color        = 0xFFFF;
    font_cfg.orientation  = MATRIXRGB_FONT_HORIZONTAL;
    
    matrixrgb_set_font ( &matrixrgb, &font_cfg );
    
    matrixrgb_fill_screen( &matrixrgb, 0xFFFF );
    Delay_ms ( 1000 );
}

Application Task

Test of panel brightnes, draws red cross on the panel using pixel write function, writes text on panel using write text function and finaly displays image on the panel.

void application_task ( )
{
    uint16_t test;

    // Brightness Test
    for ( test = 5; test < 50; test++ )
    {
        matrixrgb_set_brightness( &matrixrgb, test );
        Delay_ms ( 50 );
    }

    for ( test = 50; test > 5; test-- )
    {
        matrixrgb_set_brightness( &matrixrgb, test );
        Delay_ms ( 50 );
    }

    // Pixel Write Test
    matrixrgb_fill_screen( &matrixrgb, 0x0000 );
    for ( test = 0; test < 32; test++ )
    {
        matrixrgb_write_pixel( &matrixrgb, test, test, 0xF100 );
        Delay_ms ( 100 );
    }
    for ( test = 32; test > 0; test-- )
    {
        matrixrgb_write_pixel( &matrixrgb, 32 - test, test, 0xF100 );
        Delay_ms ( 100 );
    }

    //Text Write Test
    matrixrgb_fill_screen( &matrixrgb, 0x0000 );
    matrixrgb_write_text( &matrixrgb, "RGB", 6, 5 );
    matrixrgb_write_text( &matrixrgb, "Demo", 4, 20 );
    Delay_ms ( 1000 );
    Delay_ms ( 1000 );

    // Image Test
    matrixrgb_draw_image( &matrixrgb, &mikroe_logo_32x32_bmp[ 0 ] );
    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.