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Matrix RGB click

Matrix RGB click is a mikroBUS™ add-on board powered by a 32-bit FT900 MCU designed specifically for powering 16x32 RGB LED matrices.

click Product page

Click library

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

Software Support

We provide a library for the MatrixRGB 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 MatrixRGB Click driver.

Standard key functions :

  • Config Object Initialization function.

void matrixrgb_cfg_setup ( matrixrgb_cfg_t *cfg );

  • Initialization function.

MATRIXRGB_RETVAL matrixrgb_init ( matrixrgb_t *ctx, matrixrgb_cfg_t *cfg );

  • Click Pattern Settings ( Default Configuration ) function.

void matrixrgb_pattern_settings ( matrixrgb_t *ctx, uint8_t pattern_type, uint16_t pattern_delay_us );

Example key functions :

  • Set Power

void matrixrgb_set_power ( matrixrgb_t *ctx, uint8_t power_state );

  • Set Brightness

void matrixrgb_set_brightness ( matrixrgb_t *ctx, uint8_t brightness );

  • Write Pixel

uint8_t matrixrgb_write_pixel ( matrixrgb_t *ctx, uint16_t x, uint16_t y, uint16_t color );

Examples Description

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

The demo application is composed of two sections :

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( 2000 );

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

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

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.