16x12r

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16x12 R Click

16x12 R 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 : Stefan Filipovic
• Date : Jun 2025.
• Type : I2C type

Software Support

Example Description

This example demonstrates the usage of the 16x12 R Click board which features a high-brightness red LED matrix display. It displays characters, rotates them in different orientations, prints a scrolling string, and renders a graphical image (MIKROE logo).

Example Libraries

• MikroSDK.Board
• MikroSDK.Log
• Click.16x12R

Example Key Functions

• c16x12r_cfg_setup This function initializes Click configuration structure to initial values.

  void c16x12r_cfg_setup ( c16x12r_cfg_t *cfg );

• c16x12r_init This function initializes all necessary pins and peripherals used for this Click board.

  err_t c16x12r_init ( c16x12r_t *ctx, c16x12r_cfg_t *cfg );

• c16x12r_default_cfg This function executes a default configuration of 16x12 R Click board.

  err_t c16x12r_default_cfg ( c16x12r_t *ctx );

• c16x12r_write_char This function writes a single ASCII character to the display.

  err_t c16x12r_write_char ( c16x12r_t *ctx, uint8_t data_in );

• c16x12r_write_string This function scrolls a null-terminated ASCII string across the display.

  err_t c16x12r_write_string ( c16x12r_t *ctx, uint8_t *data_in, uint16_t speed_ms );

• c16x12r_draw_picture This function draws a picture on the display from a 12-column buffer.

  err_t c16x12r_draw_picture ( c16x12r_t *ctx, const uint16_t *image );

Application Init

Initializes the logger and the Click board and sets the default configuration.

void application_init ( void )
{
    log_cfg_t log_cfg;  
    c16x12r_cfg_t c16x12r_cfg;  

    LOG_MAP_USB_UART( log_cfg );
    log_init( &logger, &log_cfg );
    log_info( &logger, " Application Init " );
 
    // Click initialization.
    c16x12r_cfg_setup( &c16x12r_cfg );
    C16X12R_MAP_MIKROBUS( c16x12r_cfg, MIKROBUS_1 );
    if ( I2C_MASTER_ERROR == c16x12r_init( &c16x12r, &c16x12r_cfg ) ) 
    {
        log_error( &logger, " Communication init." );
        for ( ; ; );
    }
    
    if ( C16X12R_ERROR == c16x12r_default_cfg ( &c16x12r ) )
    {
        log_error( &logger, " Default configuration." );
        for ( ; ; );
    }
    
    log_info( &logger, " Application Task " );
}

Application Task

Displays single characters and a string in multiple rotations, followed by drawing and inverting the MIKROE logo image.

void application_task ( void )
{
    log_printf( &logger, " Writing digits\r\n\n" );
    c16x12r.text_rotation = C16X12R_ROTATION_H_0;
    for ( uint8_t digit = '0'; digit <= '9'; digit++ )
    {
        c16x12r_write_char ( &c16x12r, digit );
        Delay_ms ( 500 );
    }
 
    log_printf( &logger, " Rotating char\r\n\n" );
    c16x12r.text_rotation = C16X12R_ROTATION_H_0;
    c16x12r_write_char ( &c16x12r, 'R' );
    Delay_ms ( 500 );
    c16x12r.text_rotation = C16X12R_ROTATION_H_180;
    c16x12r_write_char ( &c16x12r, 'R' );
    Delay_ms ( 500 );
    c16x12r.text_rotation = C16X12R_ROTATION_V_0;
    c16x12r_write_char ( &c16x12r, 'R' );
    Delay_ms ( 500 );
    c16x12r.text_rotation = C16X12R_ROTATION_V_180;
    c16x12r_write_char ( &c16x12r, 'R' );
    Delay_ms ( 500 );
    c16x12r.text_rotation = C16X12R_ROTATION_H_0;
    c16x12r_write_char ( &c16x12r, 'R' );
    Delay_ms ( 500 );
 
    log_printf( &logger, " Writing text\r\n\n" );
    c16x12r.text_rotation = C16X12R_ROTATION_H_0;
    c16x12r_write_string ( &c16x12r, "MIKROE - 16x12 R Click", 50 );
    Delay_ms ( 1000 );
 
    log_printf( &logger, " Writing text\r\n\n" );
    c16x12r.text_rotation = C16X12R_ROTATION_H_180;
    c16x12r_write_string ( &c16x12r, "MIKROE - 16x12 R Click", 50 );
    Delay_ms ( 1000 );
    log_printf( &logger, " Writing text\r\n\n" );
    c16x12r.text_rotation = C16X12R_ROTATION_V_0;
    c16x12r_write_string ( &c16x12r, "MIKROE - 16x12 R Click", 50 );
    Delay_ms ( 1000 );
 
    log_printf( &logger, " Writing text\r\n\n" );
    c16x12r.text_rotation = C16X12R_ROTATION_V_180;
    c16x12r_write_string ( &c16x12r, "MIKROE - 16x12 R Click", 50 );
    Delay_ms ( 1000 );
 
    log_printf( &logger, " Drawing MIKROE logo\r\n\n" );
    c16x12r_draw_picture ( &c16x12r, c16x12r_img_mikroe );
    Delay_ms ( 1000 );
    Delay_ms ( 1000 );
 
    log_printf( &logger, " Drawing inverted MIKROE logo\r\n\n" );
    c16x12r_draw_picture ( &c16x12r, c16x12r_img_mikroe_inv );
    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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