README.md

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BIG 7-SEG Click

BIG 7-SEG R Click is what you need if you want to add a seven-segment LED display to your project.

Click Product page

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Click library

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

Software Support

We provide a library for the Big7Seg 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 Big7Seg Click driver.

Standard key functions :

• Config Object Initialization function.

void big7seg_cfg_setup ( big7seg_cfg_t *cfg );

• Initialization function.

BIG7SEG_RETVAL big7seg_init ( big7seg_t *ctx, big7seg_cfg_t *cfg );

Example key functions :

• Turn OFF BIG 7-SEG display

void big7seg_display_off ( big7seg_t *ctx );

• Function write number

void big7seg_write_data_number ( big7seg_t *ctx, uint8_t display_number );

• Function write character

void big7seg_write_data_character ( big7seg_t *ctx, char display_char );

Examples Description

This application sets seven-segment leds on the display.

The demo application is composed of two sections :

Application Init

Driver initializaion and turning on the display by setting PWM pin to logic 1 and prepare to communcation via SPI.

void application_init ( void )
{
    log_cfg_t log_cfg;
    big7seg_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 ----" );

    //  Click initialization.

    big7seg_cfg_setup( &cfg );
    BIG7SEG_MAP_MIKROBUS( cfg, MIKROBUS_1 );
    big7seg_init( &big7seg, &cfg );

    big7seg_set7seg( &big7seg );
    Delay_100ms( );
}
  

Application Task

This example shows functionality of the BIG 7-SEG R Click, shows number or character on display.

void application_task ( )
{
    uint8_t counter;

    big7seg_reset7seg( &big7seg );
    big7seg_display_on( &big7seg );
    Delay_1sec( );

    big7seg_write_data( &big7seg, 0x40 );
    Delay_1sec( );
    big7seg_write_data_character(  &big7seg, 'B' );
    Delay_1sec( );
    big7seg_write_data_character(  &big7seg, 'I' );
    Delay_1sec( );
    big7seg_write_data_character(  &big7seg, 'G' );
    Delay_1sec( );
    big7seg_write_data( &big7seg, 0x08 );
    Delay_1sec( );
    big7seg_write_data_number( &big7seg, 7 );
    Delay_1sec( );
    big7seg_write_data( &big7seg, 0x40 );
    Delay_1sec( );
    big7seg_write_data_character(  &big7seg, 'S' );
    Delay_1sec( );
    big7seg_write_data_character(  &big7seg, 'E' );
    Delay_1sec( );
    big7seg_write_data_character(  &big7seg, 'G' );
    Delay_1sec( );
    
    big7seg_write_data( &big7seg, 0x00 );
    Delay_1sec( );
    for ( counter = 65; counter < 91; counter ++ )
    {
        big7seg_write_data_character(  &big7seg, counter );
        Delay_1sec( );
    }

    big7seg_display_off( &big7seg );
    Delay_1sec( );
}

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.Big7Seg

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.

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