irgesture

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IR Gesture Click

IR Gesture 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 : MikroE Team
• Date : Jan 2020.
• Type : I2C type

Software Support

Example Description

This Click enables contactless gesture recognition: basic directional swipes (up, down, left or right).

Example Libraries

• MikroSDK.Board
• MikroSDK.Log
• Click.IrGesture

Example Key Functions

• irgesture_cfg_setup Config Object Initialization function.

void irgesture_cfg_setup ( irgesture_cfg_t *cfg );

• irgesture_init Initialization function.

err_t irgesture_init ( irgesture_t *ctx, irgesture_cfg_t *cfg );

• irgesture_default_cfg Click Default Configuration function.

void irgesture_default_cfg ( irgesture_t *ctx );

• irgesture_enable_gesture_sensor Function starts the gesture recognition engine on the APDS-9960 IC on IR Gesture Click.

void irgesture_enable_gesture_sensor ( irgesture_t *ctx );

• irgesture_detect_gesture Function processes a gesture event and returns best guessed position engine on IR Gesture Click.

uint8_t irgesture_detect_gesture ( irgesture_t *ctx );

• compare_data Function compares input data and returns position of gesture.

static uint8_t compare_data  (  uint8_t value0, uint8_t value1, uint8_t value2, uint8_t value3  );

Application Init

Initialization driver enable's - I2C, set default configuration, enable geasture sensor and start write log.

void application_init ( void )
{
    log_cfg_t log_cfg;
    irgesture_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.

    irgesture_cfg_setup( &cfg );
    IRGESTURE_MAP_MIKROBUS( cfg, MIKROBUS_POSITION_IRGESTURE );
    irgesture_init( &irgesture, &cfg );
    irgesture_default_cfg( &irgesture );
}

Application Task

This is a example which demonstrates the use of IR Gesture Click board. IR Gesture Click detects gestures and sends the movement to terminal every 1 second.

void application_task ( void )
{
    position = irgesture_detect_gesture( &irgesture );

    if ( position_old != position )
    {
        if ( position == IRGESTURE_FAR )
        {
            log_printf( &logger, "       F A R        \r\n" );
        }
        if ( position == IRGESTURE_RIGHT )
        {
            log_printf( &logger, "     R I G H T      \r\n" );
        }
        if ( position == IRGESTURE_LEFT )
        {
            log_printf( &logger, "      L E F T       \r\n" );
        }
        if ( position == IRGESTURE_UP )
        {
            log_printf( &logger, "        U P         \r\n" );
        }
        if ( position == IRGESTURE_DOWN )
        {
            log_printf( &logger, "      D O W N       \r\n" );
        }
        if ( position == IRGESTURE_NEAR )
        {
            log_printf( &logger, "      N E A R       \r\n" );
        }

        position_old = position;
        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.

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