irgesture2

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IR Gesture 2 Click

IR Gesture 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 : Apr 2022.
• Type : SPI type

Software Support

Example Description

This example demonstrates the use of IR Gesture 2 Click board by reading and displaying the raw ADC values of entire 60-pixel IR photodiode array.

Example Libraries

• MikroSDK.Board
• MikroSDK.Log
• Click.IRGesture2

Example Key Functions

• irgesture2_cfg_setup Config Object Initialization function.

void irgesture2_cfg_setup ( irgesture2_cfg_t *cfg );

• irgesture2_init Initialization function.

err_t irgesture2_init ( irgesture2_t *ctx, irgesture2_cfg_t *cfg );

• irgesture2_default_cfg Click Default Configuration function.

err_t irgesture2_default_cfg ( irgesture2_t *ctx );

• irgesture2_get_int_pin This function returns the INT pin logic state.

uint8_t irgesture2_get_int_pin ( irgesture2_t *ctx );

• irgesture2_read_pixels This function reads the raw ADC values of entire 60-pixel IR photodiode array.

err_t irgesture2_read_pixels ( irgesture2_t *ctx, int16_t *pixels, bool flip_pixels );

• irgesture2_write_register This function writes a data byte to the selected register by using SPI serial interface.

err_t irgesture2_write_register ( irgesture2_t *ctx, uint8_t reg, uint8_t data_in );

Application Init

Initializes the driver and performs the Click default configuration.

void application_init ( void )
{
    log_cfg_t log_cfg;  /**< Logger config object. */
    irgesture2_cfg_t irgesture2_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.
    irgesture2_cfg_setup( &irgesture2_cfg );
    IRGESTURE2_MAP_MIKROBUS( irgesture2_cfg, MIKROBUS_1 );
    if ( SPI_MASTER_ERROR == irgesture2_init( &irgesture2, &irgesture2_cfg ) )
    {
        log_error( &logger, " Communication init." );
        for ( ; ; );
    }
    
    if ( IRGESTURE2_ERROR == irgesture2_default_cfg ( &irgesture2 ) )
    {
        log_error( &logger, " Default configuration." );
        for ( ; ; );
    }
    
    log_info( &logger, " Application Task " );
}

Application Task

Waits for an end of conversion interrupt and then reads the raw ADC values of entire 60-pixel IR photodiode array and displays the results on the USB UART as a 10x6 matrix every 100ms approximately.

void application_task ( void )
{
    // Wait for an end of conversion interrupt
    while ( irgesture2_get_int_pin ( &irgesture2 ) );
    
    int16_t pixels[ IRGESTURE2_NUM_SENSOR_PIXELS ];
    if ( IRGESTURE2_OK == irgesture2_read_pixels ( &irgesture2, pixels, false ) )
    {
        for ( uint8_t cnt = 0; cnt < IRGESTURE2_NUM_SENSOR_PIXELS; cnt++ )
        {
            if ( 0 == ( cnt % IRGESTURE2_SENSOR_X_SIZE ) )
            {
                log_printf( &logger, "\r\n" );
            }
            log_printf( &logger, "%d\t", pixels[ cnt ] );
        }
        log_printf( &logger, "\r\n" );
    }
}

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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