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Author: MIKROE
Last Updated: 2024-10-31
Package Version: 2.1.0.9
mikroSDK Library: 2.0.0.0
Category: Optical
Downloaded: 107 times
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License: MIT license
IR Grid 2 Click is a thermal imaging sensor. It has an array of 768 very sensitive factory calibrated IR elements (pixels), arranged in 32 rows of 24 pixels. Each one of them is measuring an object temperature up to 300˚C within its local Field of View (FOV). The MLX90640ESF-BAB IR sensor used on this Click board™ has just 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.
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DOWNLOAD LINK | RELATED COMPILER | CONTAINS |
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4598_ir_grid_2_click.zip [532.38KB] | mikroC AI for ARM GCC for ARM Clang for ARM mikroC AI for PIC32 XC32 GCC for RISC-V Clang for RISC-V mikroC AI for dsPIC XC16 |
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IR Grid 2 Click is a thermal imaging sensor. It has an array of 768 very sensitive factory calibrated IR elements (pixels), arranged in 32 rows of 24 pixels. Each one of them is measuring an object temperature up to 300˚C within its local Field of View (FOV). The MLX90640ESF-BAB IR sensor used on this Click board™ has just 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.
We provide a library for the IRGrid2 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.
This library contains API for IRGrid2 Click driver.
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 );
The demo application displays a reading of ambient temperature and a 32x24 pixel object temperature matrix.
The demo application is composed of two sections :
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 ----" );
}
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 );
}
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:
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.