lcdmini

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LCD mini Click

LCD mini 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 Ilic
• Date : Dec 2021.
• Type : SPI type

Software Support

Example Description

This is an example that demonstrates the use of the LCD mini Click board.

Example Libraries

• MikroSDK.Board
• MikroSDK.Log
• Click.LCDmini

Example Key Functions

• lcdmini_cfg_setup Config Object Initialization function.

void lcdmini_cfg_setup ( lcdmini_cfg_t *cfg );

• lcdmini_init Initialization function.

err_t lcdmini_init ( lcdmini_t *ctx, lcdmini_cfg_t *cfg );

• lcdmini_default_cfg Click Default Configuration function.

err_t lcdmini_default_cfg ( lcdmini_t *ctx );

• lcdmini_set_backlight Set backlight function.

void lcdmini_set_backlight ( lcdmini_t *ctx, float backlight_value );

• lcdmini_set_contrast Set contrast function.

void lcdmini_set_contrast( lcdmini_t *ctx, uint8_t contrast_value );

• lcdmini_display_text LCD mini display text.

void lcdmini_display_text ( lcdmini_t *ctx, uint8_t row, uint8_t column, char *data_in );

Application Init

Initialization driver enables - SPI, performing hardware reset, default config, setting up the backlight, and entering text to be written.

void application_init ( void )
{
    log_cfg_t log_cfg;  /**< Logger config object. */
    lcdmini_cfg_t lcdmini_cfg;  /**< Click config object. */

    /** 
     * 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.
    lcdmini_cfg_setup( &lcdmini_cfg );
    LCDMINI_MAP_MIKROBUS( lcdmini_cfg, MIKROBUS_1 );
    if ( SPI_MASTER_ERROR == lcdmini_init( &lcdmini, &lcdmini_cfg ) )
    {
        log_error( &logger, " Communication init." );
        for ( ; ; );
    }
    lcdmini_hw_reset( &lcdmini );
    log_printf( &logger, "---------------------\r\n" );
    log_printf( &logger, "   SPI LCD Config    \r\n" );
    log_printf( &logger, " Clear LCD display   \r\n" );
    log_printf( &logger, "     Cursor OFF      \r\n" );
    
    if ( LCDMINI_ERROR == lcdmini_default_cfg ( &lcdmini ) )
    {
        log_error( &logger, " Default configuration." );
        for ( ; ; );
    }
    log_printf( &logger, "---------------------\r\n" );
    log_printf( &logger, "  Setting Backlight  \r\n" );
    lcdmini_set_backlight ( &lcdmini, 1 );
    Delay_ms ( 100 );
    
    log_printf( &logger, "---------------------\r\n" );
    log_printf( &logger, "  Set Contrast: 200  \r\n" );
    lcdmini_set_contrast( &lcdmini, 200 );
    Delay_ms ( 100 );
    
    log_info( &logger, " Application Task " );
    
    log_printf( &logger, "---------------------\r\n" );
    log_printf( &logger, "     Display text    \r\n" );
    log_printf( &logger, "---------------------\r\n" );
    
    lcdmini_display_text ( &lcdmini, 1, 6, "Mikro E" );
    lcdmini_display_text ( &lcdmini, 2, 2, "LCD mini Click" ); 
    lcdmini_display_text ( &lcdmini, 3, 2, "LCD mini Click" ); 
    lcdmini_display_text ( &lcdmini, 4, 6, "Mikro E" );
    Delay_ms ( 500 );
}

Application Task

This example shows the written text, then the text is moved left, with changing between rows of the LCD screen.

void application_task ( void )
{
    Delay_ms ( 500 );
    lcdmini_send_cmd( &lcdmini, LCDMINI_SHIFT_LEFT ); 
}

Note

If the screen isn't initialized you may need to restart the device.

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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