captouch6

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Cap Touch 6 Click

Cap Touch 6 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 : Nov 2022.
• Type : GPIO type

Software Support

Example Description

This example demonstrates the use of Cap Touch 6 Click board by reading and displaying the touch and proximity events.

Example Libraries

• MikroSDK.Board
• MikroSDK.Log
• Click.CapTouch6

Example Key Functions

• captouch6_cfg_setup Config Object Initialization function.

void captouch6_cfg_setup ( captouch6_cfg_t *cfg );

• captouch6_init Initialization function.

err_t captouch6_init ( captouch6_t *ctx, captouch6_cfg_t *cfg );

• captouch6_get_tout_pin This function returns the TOUT pin logic state.

uint8_t captouch6_get_tout_pin ( captouch6_t *ctx );

• captouch6_get_pout_pin This function returns the POUT pin logic state.

uint8_t captouch6_get_pout_pin ( captouch6_t *ctx );

Application Init

Initializes the driver and logger.

void application_init ( void )
{
    log_cfg_t log_cfg;  /**< Logger config object. */
    captouch6_cfg_t captouch6_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 );
    log_info( &logger, " Application Init " );

    // Click initialization.
    captouch6_cfg_setup( &captouch6_cfg );
    CAPTOUCH6_MAP_MIKROBUS( captouch6_cfg, MIKROBUS_1 );
    if ( DIGITAL_OUT_UNSUPPORTED_PIN == captouch6_init( &captouch6, &captouch6_cfg ) ) 
    {
        log_error( &logger, " Communication init." );
        for ( ; ; );
    }
    log_info( &logger, " Application Task " );
}

Application Task

Reads the touch and proximity event pins state and displays them on the USB UART on changes.

void application_task ( void )
{
    static uint8_t old_touch_state = 0, old_prox_state = 0;
    uint8_t touch_state = captouch6_get_tout_pin ( &captouch6 );
    uint8_t prox_state = captouch6_get_pout_pin ( &captouch6 );
    if ( ( old_touch_state != touch_state ) || ( old_prox_state != prox_state ) )
    {
        log_printf( &logger, " Touch: %s\r\n", ( char * ) ( !touch_state ? "detected" : "idle" ) );
        log_printf( &logger, " Proximity: %s\r\n\n", ( char * ) ( !prox_state ? "detected" : "idle" ) );
        old_touch_state = touch_state;
        old_prox_state = prox_state;
    }
}

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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