bihall

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BI HALL Click

BI HALL 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 : Nenad Filipovic
• Date : Dec 2019.
• Type : GPIO type

Software Support

Example Description

Detect the south & north pole magnetic fields.

Example Libraries

• MikroSDK.Board
• MikroSDK.Log
• Click.BiHall

Example Key Functions

• bihall_cfg_setup Config Object Initialization function.

void bihall_cfg_setup ( bihall_cfg_t *cfg );

• bihall_init Initialization function.

err_t bihall_init ( bihall_t *ctx, bihall_cfg_t *cfg );

• bihall_default_cfg Click Default Configuration function.

void bihall_default_cfg ( bihall_t *ctx );

• bihall_det_mag_field Detecting south & north pole magnetic fields status function.

uint8_t bihall_det_mag_field ( bihall_t *ctx );

Application Init

Configuring Clicks and log objects.

void application_init ( void )
{
    log_cfg_t log_cfg;
    bihall_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_printf(&logger, "---- Application Init ----\r\n");

    //  Click initialization.

    bihall_cfg_setup( &cfg );
    BIHALL_MAP_MIKROBUS( cfg, MIKROBUS_1 );
    bihall_init( &bihall, &cfg );
    
    log_printf(&logger, " Detecting magnetic fields\r\n");
    log_printf(&logger, "--------------------------\r\n");
    
    bihall_state = BIHALL_MAG_POLE_NORTH;
    bihall_state_old = BIHALL_MAG_POLE_NORTH;
}

Application Task

This is a example which demonstrates the use of BI HALL Click board. Detect the south & north pole magnetic fields near the BI HALL Click. Results are being sent to the Usart Terminal where you can track their changes. All data logs on usb uart when magnetic field is detected.

void application_task ( void )
{
    bihall_state = bihall_det_mag_field( &bihall );

    if ( ( bihall_state == BIHALL_MAG_POLE_SOUTH ) && ( bihall_state_old == BIHALL_MAG_POLE_NORTH ) )
    {
        bihall_state_old = BIHALL_MAG_POLE_SOUTH;
        log_printf(&logger, "         ~ SOUTH ~\r\n");
        log_printf(&logger, "--------------------------\r\n");
    }

    if ( ( bihall_state == BIHALL_MAG_POLE_NORTH ) && ( bihall_state_old == BIHALL_MAG_POLE_SOUTH ) )
    {
        log_printf(&logger, "         ~ NORTH ~\r\n");
        log_printf(&logger, "--------------------------\r\n");
        bihall_state_old = BIHALL_MAG_POLE_NORTH;
    }
}

Note

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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