bargraph4

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BarGraph 4 Click

BarGraph 4 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 : Jul 2021.
• Type : SPI type

Software Support

Example Description

This example demonstrates the use of BarGraph 4 Click board.

Example Libraries

• MikroSDK.Board
• MikroSDK.Log
• Click.BarGraph4

Example Key Functions

• bargraph4_cfg_setup Config Object Initialization function.

void bargraph4_cfg_setup ( bargraph4_cfg_t *cfg );

• bargraph4_init Initialization function.

err_t bargraph4_init ( bargraph4_t *ctx, bargraph4_cfg_t *cfg );

• bargraph4_enable_output This function enables all outputs.

void bargraph4_enable_output ( bargraph4_t *ctx );

• bargraph4_set_output This function sets all outputs to desired value by using SPI serial interface.

err_t bargraph4_set_output ( bargraph4_t *ctx, uint16_t ch_mask );

• bargraph4_set_channel_level This function sets the level of a desired bar graph channel.

err_t bargraph4_set_channel_level ( bargraph4_t *ctx, bargraph4_sel_ch_t channel, bargraph4_level_t level );

Application Init

Initializes the driver and enables output.

void application_init ( void )
{
    log_cfg_t log_cfg;              /**< Logger config object. */
    bargraph4_cfg_t bargraph4_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 );
    Delay_ms ( 100 );
    log_info( &logger, " Application Init " );

    // Click initialization.

    bargraph4_cfg_setup( &bargraph4_cfg );
    BARGRAPH4_MAP_MIKROBUS( bargraph4_cfg, MIKROBUS_POSITION_BARGRAPH4 );
    err_t init_flag  = bargraph4_init( &bargraph4, &bargraph4_cfg );
    if ( SPI_MASTER_ERROR == init_flag )
    {
        log_error( &logger, " Application Init Error. " );
        log_info( &logger, " Please, run program again... " );

        for ( ; ; );
    }

    bargraph4_enable_output( &bargraph4 );
    log_info( &logger, " Application Task " );
}

Application Task

Changes the level of all bar graph channels every second. The channels level will be logged on the USB UART.

void application_task ( void )
{
    for ( bargraph4_level_t cnt = BARGRAPH4_LEVEL_0; cnt <= BARGRAPH4_LEVEL_4; cnt++ )
    {
        bargraph4_set_channel_level( &bargraph4, BARGRAPH4_CHANNEL_A, cnt );
        bargraph4_set_channel_level( &bargraph4, BARGRAPH4_CHANNEL_B, cnt );
        bargraph4_set_channel_level( &bargraph4, BARGRAPH4_CHANNEL_C, cnt );
        bargraph4_set_channel_level( &bargraph4, BARGRAPH4_CHANNEL_D, cnt );
        log_printf( &logger, " All channels set to level %u\r\n\n", ( uint16_t ) cnt );
        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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