irsense4

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IR Sense 4 Click

IR Sense 4 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 : Jun 2023.
• Type : I2C/SPI type

Software Support

Example Description

This example demonstrates the use of theIR Sense 4 Click board™, by showing parameters for detection of the presence and motion as well as ambient temperature.

Example Libraries

• MikroSDK.Board
• MikroSDK.Log
• Click.IRSense4

Example Key Functions

• irsense4_cfg_setup Config Object Initialization function.

void irsense4_cfg_setup ( irsense4_cfg_t *cfg );

• irsense4_init Initialization function.

err_t irsense4_init ( irsense4_t *ctx, irsense4_cfg_t *cfg );

• irsense4_default_cfg Click Default Configuration function.

err_t irsense4_default_cfg ( irsense4_t *ctx );

• irsense4_get_presence_data IR Sense 4 get the presence detection data function.

err_t irsense4_get_presence_data ( irsense4_t *ctx, int16_t *presence );

• irsense4_get_motion_data IR Sense 4 get the motion detection data function.

err_t irsense4_get_motion_data ( irsense4_t *ctx, int16_t *motion );

• irsense4_get_amb_temperature IR Sense 4 get the ambient temperature function.

err_t irsense4_get_amb_temperature ( irsense4_t *ctx, float *temperature );

Application Init

The initialization of I2C or SPI module and log UART. After driver initialization, the app sets the default configuration.

void application_init ( void )
{
    log_cfg_t log_cfg;  /**< Logger config object. */
    irsense4_cfg_t irsense4_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.
    irsense4_cfg_setup( &irsense4_cfg );
    IRSENSE4_MAP_MIKROBUS( irsense4_cfg, MIKROBUS_1 );
    err_t init_flag = irsense4_init( &irsense4, &irsense4_cfg );
    if ( ( I2C_MASTER_ERROR == init_flag ) || ( SPI_MASTER_ERROR == init_flag ) )
    {
        log_error( &logger, " Communication init." );
        for ( ; ; );
    }
    
    if ( IRSENSE4_ERROR == irsense4_default_cfg ( &irsense4 ) )
    {
        log_error( &logger, " Default configuration." );
        for ( ; ; );
    }
    
    log_info( &logger, " Application Task " );
    log_printf( &logger, " ------------------------\r\n" );
}

Application Task

The application checks for the human presence and motion detection and display output data, using embedded algorithms, and ambient temperature in degrees Celsius. Results are being sent to the UART Terminal, where you can track their changes.

void application_task ( void )
{ 
    static float temperature = 0.0;
    static int16_t detection_data = 0;
    static uint8_t status = 0;
    while ( IRSENSE4_OK != irsense4_wait_new_data_ready( &irsense4 ) );
    if ( IRSENSE4_OK == irsense4_get_status( &irsense4, &status ) )
    {
        if ( status & IRSENSE4_STATUS_DETECT_FLAG )
        {
            if ( ( IRSENSE4_OK == irsense4_get_presence_data( &irsense4, &detection_data ) ) && 
                 ( status & IRSENSE4_STATUS_PRES_FLAG ) )
            {
                log_printf( &logger, " Presence: %d \r\n", detection_data );
            }
    
            if ( ( IRSENSE4_OK == irsense4_get_motion_data( &irsense4, &detection_data ) ) && 
                 ( status & IRSENSE4_STATUS_MOT_FLAG ) )
            {
                log_printf( &logger, " Motion: %d \r\n", detection_data );
            }
            
            if ( IRSENSE4_OK == irsense4_get_amb_temperature( &irsense4, &temperature ) )
            {
                log_printf( &logger, " Temperature: %.2f C\r\n", temperature );
            }
            log_printf( &logger, " ------------------------\r\n" );
            Delay_ms ( 100 );
        }
    }
}

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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