hallswitch2

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Hall Switch 2 Click

Hall Switch 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.

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Click Library

• Author : Stefan Filipovic
• Date : Jul 2021.
• Type : GPIO type

Software Support

Example Description

This example demonstrates the use of Hall Switch 2 Click board.

Example Libraries

• MikroSDK.Board
• MikroSDK.Log
• Click.HallSwitch2

Example Key Functions

• hallswitch2_cfg_setup Config Object Initialization function.

void hallswitch2_cfg_setup ( hallswitch2_cfg_t *cfg );

• hallswitch2_init Initialization function.

err_t hallswitch2_init ( hallswitch2_t *ctx, hallswitch2_cfg_t *cfg );

• hallswitch2_check_state This function checks the S and N pin states, which indicates a magnetic field poles.

uint8_t hallswitch2_check_state ( hallswitch2_t *ctx );

Application Init

Initializes the driver and logger and makes an initial log.

void application_init ( void )
{
    log_cfg_t log_cfg;                  /**< Logger config object. */
    hallswitch2_cfg_t hallswitch2_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.

    hallswitch2_cfg_setup( &hallswitch2_cfg );
    HALLSWITCH2_MAP_MIKROBUS( hallswitch2_cfg, MIKROBUS_1 );
    if ( hallswitch2_init( &hallswitch2, &hallswitch2_cfg ) == DIGITAL_OUT_UNSUPPORTED_PIN ) 
    {
        log_error( &logger, " Application Init Error. " );
        log_info( &logger, " Please, run program again... " );

        for ( ; ; );
    }
    log_info( &logger, " Application Task " );
}

Application Task

Displays the corresponding message on the USB UART based on the switches state, i.e. based on the magnetic field presence.

void application_task ( void )
{
    switch ( hallswitch2_check_state( &hallswitch2 ) )
    {
        case HALLSWITCH2_NO_MAGNET_DETECTED:
        {
            if ( HALLSWITCH2_NO_MAGNET_DETECTED != print_state )
            {
                log_printf( &logger, " No magnet detected\r\n" );
                log_printf( &logger, " Switches - disabled\r\n\r\n" );
                print_state = HALLSWITCH2_NO_MAGNET_DETECTED;
            }
            break;
        }
        case HALLSWITCH2_S_POLE_DETECTED:
        {
            if ( HALLSWITCH2_S_POLE_DETECTED != print_state )
            {
                log_printf( &logger, " South pole detected\r\n" );
                log_printf( &logger, " Switch 1 - enabled\r\n\r\n" );
                print_state = HALLSWITCH2_S_POLE_DETECTED;
            }
            break;
        }
        case HALLSWITCH2_N_POLE_DETECTED:
        {
            if ( HALLSWITCH2_N_POLE_DETECTED != print_state )
            {
                log_printf( &logger, " North pole detected\r\n" );
                log_printf( &logger, " Switch 2 - enabled\r\n\r\n" );
                print_state = HALLSWITCH2_N_POLE_DETECTED;
            }
            break;
        }
        default:
        {
            break;
        }
    }
}

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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