irgrid  2.0.0.0
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IR Grid click

IR Grid click is a thermal imaging sensor. It has an array of 64 very sensitive factory calibrated IR elements (pixels), arranged in 4 rows of 16 pixels, each measuring an object temperature up to 300˚C within its local Field of View (FOV). The MLX90621ESF-BAD IR sensor used on this Click board™ has only four pins, and it is mounted inside of the industry standard TO39 package. It is equipped with 2Kbit of EEPROM for storing the compensation and calibration parameters.

click Product page


Click library

Software Support

We provide a library for the IrGrid 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 form compilers IDE(recommended way), or downloaded from our LibStock, or found on mikroE github account.

Library Description

This library contains API for IrGrid Click driver.

Standard key functions :

Example key functions :

Examples Description

IR Grid click is a thermal imaging sensor. It has an array of 64 very sensitive factory calibrated IR elements (pixels), arranged in 4 rows of 16 pixels, each measuring an object temperature up to 300˚C.

The demo application is composed of two sections :

Application Init

Initializes driver init and IR Grid module

void application_init ( void )
{
log_cfg_t log_cfg;
// Logger initialization.
log_cfg.level = LOG_LEVEL_DEBUG;
LOG_MAP_USB_UART( log_cfg );
log_cfg.baud = 115200;
log_init( &logger, &log_cfg );
log_info( &logger, "---- Application Init ----" );
// Click initialization.
IRGRID_MAP_MIKROBUS( cfg, MIKROBUS_1 );
irgrid_init( &irgrid, &cfg );
irgrid_device_init( &irgrid, &irgrid_data, 16 );
log_printf( &logger, "IR GRID INITIALIZED \r\n" );
}

Application Task

Reads the temperature of all pixels and creates a pixel temperature matrix that logs on usbuart every half of second

void application_task ( void )
{
if ( 1 != irgrid_measure( &irgrid, &irgrid_data ) )
{
irgrid_get_temperature( &irgrid_data, &ir_tmp[ 0 ] );
}
for ( rc = 0; rc < 4; rc++ )
{
for ( cc = 0; cc < 16; cc++ )
{
i = ( cc * 4 ) + rc;
log_printf( &logger, "%.3f ", ir_tmp[ i ] );
}
log_printf( &logger, "\r\n" );
Delay_ms( 100 );
}
log_printf( &logger, "\r\n" );
log_printf( &logger, "\r\n" );
log_printf( &logger, "\r\n" );
Delay_ms( 500 );
}

The full application code, and ready to use projects can be installed directly form compilers IDE(recommneded) or found on LibStock page or mikroE GitHub accaunt.

Other mikroE Libraries used in the example:

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. The terminal available in all Mikroelektronika compilers, or any other terminal application of your choice, can be used to read the message.