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IR Grid 2 Click

IR Grid 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.

Click Library

  • Author : Stefan Ilic
  • Date : Jun 2021.
  • Type : I2C type

Software Support

Example Description

The demo application displays a reading of ambient temperature and a 32x24 pixel object temperature matrix.

Example Libraries

  • MikroSDK.Board
  • MikroSDK.Log
  • Click.IRGrid2

Example Key Functions

  • irgrid2_cfg_setup Config Object Initialization function.
void irgrid2_cfg_setup ( irgrid2_cfg_t *cfg );
  • irgrid2_init Initialization function.
err_t irgrid2_init ( irgrid2_t *ctx, irgrid2_cfg_t *cfg );
  • irgrid2_default_cfg Click Default Configuration function.
void irgrid2_default_cfg ( irgrid2_t *ctx );
  • irgrid2_generic_write This function reads a desired number of data bytes starting from the selected register by using I2C serial interface.
void irgrid2_generic_write ( irgrid2_t *ctx, uint16_t reg, uint8_t *data_buf, uint16_t len );
  • irgrid2_get_frame_data This function is used for getting frame data.
uint16_t irgrid2_get_frame_data ( irgrid2_t *ctx, uint16_t *frame_data );
  • irgrid2_get_pixel_temperature This function is used for getting pixels temperature.
void irgrid2_get_pixel_temperature ( irgrid2_t *ctx, float *temp_ambient, float *pixel_temp );

Application Init

Configures the Click and log objects and sets the Click default configuration.

void application_init ( void ) 
{
    log_cfg_t log_cfg;  /**< Logger config object. */
    irgrid2_cfg_t irgrid2_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.
    irgrid2_cfg_setup( &irgrid2_cfg );
    IRGRID2_MAP_MIKROBUS( irgrid2_cfg, MIKROBUS_1 );
    err_t init_flag = irgrid2_init( &irgrid2, &irgrid2_cfg );
    if ( I2C_MASTER_ERROR == init_flag ) {
        log_error( &logger, " Application Init Error. " );
        log_info( &logger, " Please, run program again... " );

        for ( ; ; );
    }

    irgrid2_default_cfg ( &irgrid2 );
    Delay_ms ( 1000 );
    log_info( &logger, "---- Start measurement ----" );
}

Application Task

Reads the temperature of all pixels every 500ms and displays it on USB UART in a form of a 32x24 matrix.

void application_task ( void ) 
{
    float px_matrix[ 768 ];
    float temp_ambient;

    irgrid2_get_pixel_temperature( &irgrid2, &temp_ambient, px_matrix );

    log_printf( &logger, "\r\n>> Pixel temperature matrix 32x24 <<\r\n" );
    for ( uint16_t cnt = 1 ; cnt < 769 ; cnt++) {
        log_printf( &logger, "%.2f", px_matrix[ cnt - 1 ] );
        if ( ( ( cnt % 32 ) == 0 ) ) {
            log_printf( &logger, "\r\n" );
        } else {
            log_printf( &logger, " | " );
        }
    }
    log_printf( &logger, "\r\n** Ambient (sensor) temperature is %.2f Celsius\r\n", temp_ambient );
    Delay_ms ( 500 );
}

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.