current

---

Current Click

Current 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 : Jovan Stajkovic
• Date : Dec 2019.
• Type : SPI type

Software Support

Example Description

This is an example that shows the capabilities of the Current Click board by measuring current in miliampers. Current Click board can be used to safely measure DC current in the range of 2-2048mA depending on shunt resistor.

Example Libraries

• MikroSDK.Board
• MikroSDK.Log
• Click.Current

Example Key Functions

• current_cfg_setup Config Object Initialization function.

void current_cfg_setup ( current_cfg_t *cfg );

• current_init Initialization function.

err_t current_init ( current_t *ctx, current_cfg_t *cfg );

• current_get_current_data Function is used to calculate current in mA.

float current_get_current_data ( current_t *ctx, float r_hunt );

Application Init

Initalizes SPI, LOG and Click drivers.

void application_init ( void )
{
    log_cfg_t log_cfg;
    current_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.

    current_cfg_setup( &cfg );
    CURRENT_MAP_MIKROBUS( cfg, MIKROBUS_1 );
    current_init( &current, &cfg );
    log_printf( &logger, "-----------------------\r\n" );
    log_printf( &logger, "    Current  Click     \r\n" );
    log_printf( &logger, "-----------------------\r\n" );
}

Application Task

Measures DC current and displays the results on USB UART each second.

void application_task ( void )
{
    curr = current_get_current_data( &current, CURRENT_RSHUNT_0_05 );
    
    if ( curr == CURRENT_OUT_OF_RANGE )
    {
        log_printf( &logger, "Out of range!\r\n" );
    }
    else
    {
       log_printf( &logger, " Current: %.2f mA\r\n", curr );
    }
    
    log_printf( &logger, "-----------------------\r\n" );
    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.

---