Grid-EYE 2 Click

Grid-EYE 2 Click is a compact add-on board designed for thermal imaging and motion detection applications. This board features the AMG883543, an infrared array sensor from Panasonic with a 90° viewing angle and an 8x8 pixel matrix that measures temperatures from 0°C to 80°C with a resolution of 0.25°C. The sensor can detect objects up to 5 meters away and outputs temperature data via a digital interface. The board also supports the Click Snap feature, allowing the main sensor area to be detached for flexible positioning.

Click Product page

Click library

• Author : Stefan Filipovic
• Date : May 2024.
• Type : I2C type

Software Support

We provide a library for the Grid-EYE 2 Click as well as a demo application (example), developed using MikroElektronika compilers. The demo can run on all the main MikroElektronika development boards.

Package can be downloaded/installed directly from NECTO Studio Package Manager(recommended way), downloaded from our LibStock™ or found on Mikroe github account.

Library Description

This library contains API for Grid-EYE 2 Click driver.

Standard key functions :

• grideye2_cfg_setup Config Object Initialization function.

  void grideye2_cfg_setup ( grideye2_cfg_t *cfg );

• grideye2_init Initialization function.

  err_t grideye2_init ( grideye2_t *ctx, grideye2_cfg_t *cfg );

• grideye2_default_cfg Click Default Configuration function.

  err_t grideye2_default_cfg ( grideye2_t *ctx );

Example key functions :

• grideye2_get_int_pin This function returns the INT pin logic state.

  uint8_t grideye2_get_int_pin ( grideye2_t *ctx );

• grideye2_read_grid This function reads the temperature measurement of an 8x8 pixels grid and stores it in the ctx->grid_temp array.

  err_t grideye2_read_grid ( grideye2_t *ctx );

• grideye2_clear_status This function clears the interrupt status flags.

  err_t grideye2_clear_status ( grideye2_t *ctx );

Example Description

This example demonstrates the use of Grid-EYE 2 Click by reading and displaying the temperature measurements as an 8x8 pixels grid.

The demo application is composed of two sections :

Application Init

Initializes the driver and performs the Click default configuration which enables the data ready interrupt and sets data measurement to 10 frames per second.

void application_init ( void )
{
    log_cfg_t log_cfg;  /**< Logger config object. */
    grideye2_cfg_t grideye2_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.
    grideye2_cfg_setup( &grideye2_cfg );
    GRIDEYE2_MAP_MIKROBUS( grideye2_cfg, MIKROBUS_1 );
    if ( I2C_MASTER_ERROR == grideye2_init( &grideye2, &grideye2_cfg ) ) 
    {
        log_error( &logger, " Communication init." );
        for ( ; ; );
    }

    if ( GRIDEYE2_ERROR == grideye2_default_cfg ( &grideye2 ) )
    {
        log_error( &logger, " Default configuration." );
        for ( ; ; );
    }

    log_info( &logger, " Application Task " );
}

Application Task

Waits for a data ready interrupt and then reads the grid temperature measurements and displays the results on the USB UART in a form of an 8x8 pixels grid.

void application_task ( void )
{
    // Wait for data ready interrupt
    while ( grideye2_get_int_pin ( &grideye2 ) );

    if ( GRIDEYE2_OK == grideye2_read_grid ( &grideye2 ) )
    {
        grideye2_clear_status ( &grideye2 );
        for ( uint8_t cnt = 0; cnt < GRIDEYE2_NUM_PIXELS; cnt++ )
        {
            if ( 0 == ( cnt % 8 ) )
            {
                log_printf( &logger, "\r\n" );
            }
            log_printf( &logger, "%.2f ", grideye2.grid_temp[ cnt ] );
        }
        log_printf( &logger, "\r\n" );
    }
}

The full application code, and ready to use projects can be installed directly from NECTO Studio Package Manager(recommended way), downloaded from our LibStock™ or found on Mikroe github account.

Other Mikroe Libraries used in the example:

• MikroSDK.Board
• MikroSDK.Log
• Click.GridEYE2

Additional notes and informations

Depending on the development board you are using, you may need USB UART Click, USB UART 2 Click or RS232 Click to connect to your PC, for development systems with no UART to USB interface available on the board. UART terminal is available in all MikroElektronika compilers.