barcode2

---

Barcode 2 Click

Barcode 2 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.

---

Click Library

• Author : MikroE Team
• Date : Sep 2020.
• Type : UART GPS/GNSS type

Software Support

Example Description

This example reads and processes data from Barcode 2 Clicks.

Example Libraries

• MikroSDK.Board
• MikroSDK.Log
• Click.Barcode2

Example Key Functions

• barcode2_cfg_setup Config Object Initialization function.

void barcode2_cfg_setup ( barcode2_cfg_t *cfg );

• barcode2_init Initialization function.

err_t barcode2_init ( barcode2_t *ctx, barcode2_cfg_t *cfg );

• barcode2_enable_scaning The function enables or disables barcode scaning depending on state parametar value.

void barcode2_enable_scaning ( barcode2_t *ctx, uint8_t en_state );

• void barcode2_process The general process of collecting data the module sends.

static void barcode2_process ( void );

Application Init

Initializes the UART driver used for communication and another UART bus used for data logging.

void application_init ( void )
{
    log_cfg_t log_cfg;
    barcode2_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.

    barcode2_cfg_setup( &cfg );
    BARCODE2_MAP_MIKROBUS( cfg, MIKROBUS_1 );
    barcode2_init( &barcode2, &cfg );
    Delay_ms ( 100 );
}

Application Task

This is an example that demonstrates the use of the Barcode 2 Click board. First, it enables scanning and waits up to 10 seconds for the barcode to be detected. If the barcode or QR Code is detected, it displays its content to the USB UART. After that, disables scanning for 3 seconds. Results are being sent to the Usart Terminal where you can track their changes.

void application_task ( void )
{
    log_printf( &logger, "   Scanning enabled   \r\n" );
    log_printf( &logger, "------------------------\r\n" );
    barcode2_enable_scaning( &barcode2, BARCODE2_ENABLE );
    barcode2_process(  );

    barcode2_enable_scaning( &barcode2, BARCODE2_DISABLE );
    log_printf( &logger, "   Scanning disabled   \r\n" );
    log_printf( &logger, "------------------------\r\n" );
    Delay_ms ( 1000 );
    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.

---