ledringr

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Led ring R Click

Led ring 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 : MikroE Team
• Date : May 2020.
• Type : SPI type

Software Support

Example Description

LED ring R Click is a mikroBUS™ add-on board with a ring of 32 red LEDs driven.

Example Libraries

• MikroSDK.Board
• MikroSDK.Log
• Click.LedringR

Example Key Functions

• ledringr_cfg_setup Config Object Initialization function.

void ledringr_cfg_setup ( ledringr_cfg_t *cfg );

• ledringr_init Initialization function.

err_t ledringr_init ( ledringr_t *ctx, ledringr_cfg_t *cfg );

• ledringr_generic_transfer Generic transfer function.

void ledringr_generic_transfer ( ledringr_t *ctx, spi_master_transfer_data_t *block );

• ledringr_write_data Generic write function.

void ledringr_write_data ( ledringr_t *ctx, uint32_t data_to_write );

• ledringr_turn_on_led Turn On LED by position.

void ledringr_turn_on_led ( ledringr_t *ctx, uint8_t led_position );

• ledringr_led_ring_set Set led.

void ledringr_led_ring_set ( ledringr_t *ctx );

Application Init

Initializes SPI driver and performs device configuration.

void application_init ( void )
{
    log_cfg_t log_cfg;
    ledringr_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 ----" );

    ledringr_cfg_setup( &cfg );
    LEDRINGR_MAP_MIKROBUS( cfg, MIKROBUS_1 );
    ledringr_init( &ledringr, &cfg );
}

Application Task

Show functionality of Led_Ring_R Click, rotating and turn on/off led's, using the SPI interface.

void application_task ( void )
{
    uint32_t ring_led_on = 0x00000001;
    uint8_t ring_led_counter;
    uint8_t number_led;

    ledringr_led_ring_set( &ledringr );

    for ( ring_led_counter = 32; ring_led_counter > 0; ring_led_counter--)
    {
        ledringr_turn_on_led( &ledringr, ring_led_counter );
        Delay_100ms( );
    }

    Delay_100ms( );

    while ( ring_led_on < 0xFFFFFFFF )
    {
        ledringr_write_data( &ledringr, ring_led_on );
        ring_led_on = ring_led_on | (ring_led_on << 1);
        Delay_100ms( );
    }
    ledringr_write_data( &ledringr, ring_led_on );

    while ( ring_led_on > 0x00000001 )
    {
        ledringr_write_data( &ledringr, ring_led_on );
        ring_led_on = ring_led_on >> 1;
        Delay_100ms( );
    }
    ledringr_write_data( &ledringr, ring_led_on );

    Delay_100ms( );

    ring_led_on = 0x11111111;
    for ( ring_led_counter = 0; ring_led_counter < 32; ring_led_counter++ )
    {
        ledringr_write_data( &ledringr, ring_led_on );

        ring_led_on *= 2;

        if ( ring_led_on == 0x88888888 )
        {
            ring_led_on = 0x11111111;
        }
            
        Delay_100ms( );
    }
    
    for ( ring_led_counter = 0; ring_led_counter < 16; ring_led_counter++ )
    {
        ledringr_write_data( &ledringr, 0xAAAAAAAA );
        Delay_100ms( );
        
        ledringr_write_data( &ledringr, 0x55555555 );
        Delay_100ms( );
    }

    ledringr_led_ring_reset( &ledringr );

    Delay_1sec( );
}

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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