Library Description

The library covers all the necessary functions that enables the usage of the Grid-EYE Click board. It initializes and defines the I2C bus driver and drivers that offer a choice for writing and reading one byte or two bytes of data in and from registers. User can also read the whole grid that represents values of each of 64 sensors. Also, the user has different settings at his disposal.

Key functions:

• void grideye_readGrid( uint8_t *buffer ) - Function is used to read the data from the whole sensor grid.
• void grideye_defSettings() - Function is used to apply default settings.
• void grideye_initialReset() - Function is used to perform initial reset.

Examples description

The application is composed of three sections :

• System Initialization - Initializes I2C module, LOG and GPIO structures, sets INT pin as input.
• Application Initialization - Initalizes I2C driver, applies default settings, and makes an initial log.
• Application Task - This example demonstrates the use of Grid-EYE click board by reading full grid and displaying values via USART terminal.

void applicationTask()
{
    grideye_readGrid( &gridArray );

    for( i = 1; i < 9; i++ )
    {
        for( j = 1; j < 9; j++ )
        {
            mikrobus_logWrite( "| ", _LOG_TEXT );
            gridArrayTmp = gridArray[ i * j ];
            WordToStr( gridArrayTmp, logTxt );
            mikrobus_logWrite( logTxt, _LOG_TEXT );
            mikrobus_logWrite( " ", _LOG_TEXT );
        }
        mikrobus_logWrite( " ", _LOG_LINE );
        mikrobus_logWrite( "----------------------------------------------------------------", _LOG_LINE );
    }
   mikrobus_logWrite( " ", _LOG_LINE );
   mikrobus_logWrite( " ", _LOG_LINE );
    Delay_ms( 1000 );
}

Other mikroE Libraries used in the example:

• I2C
• UART
• Conversions

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.