opto2

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Opto 2 Click

Opto 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.

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Click Library

• Author : MikroE Team
• Date : dec 2019.
• Type : GPIO type

Software Support

Example Description

This application used to provide an optical isolation of sensitive microcontroller.

Example Libraries

• MikroSDK.Board
• MikroSDK.Log
• Click.Opto2

Example Key Functions

• opto2_cfg_setup Config Object Initialization function.

void opto2_cfg_setup ( opto2_cfg_t *cfg );

• opto2_init Initialization function.

err_t opto2_init ( opto2_t *ctx, opto2_cfg_t *cfg );

• opto2_check_out1 OUT1 Check function.

uint8_t opto2_check_out1 ( opto2_t *ctx );

• opto2_check_out2 OUT2 Check function.

uint8_t opto2_check_out2 ( opto2_t *ctx );

• opto2_check_out3 OUT3 Check function.

uint8_t opto2_check_out3 ( opto2_t *ctx );

Application Init

Initializes device selects the outputs (OUT1 - OUT4) which state be checked.

void application_init ( void )
{
    log_cfg_t log_cfg;
    opto2_cfg_t cfg;

    /** 
     * 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 );

    opto2_cfg_setup( &cfg );
    OPTO2_MAP_MIKROBUS( cfg, MIKROBUS_1 );
    opto2_init( &opto2, &cfg );

    log_info( &logger, "---- Application Init ----" );

    opto2_set_logger( 1, 1, 0, 0 );
    log_printf( &logger, "OPTO 2 is initialized \r\n" );
    log_printf( &logger, "" );
    Delay_ms ( 200 );
}

Application Task

Performs the check procedure for selected outputs and logs the states from that outputs on USB UART. Repeat the check procedure every 2 seconds.

void application_task ( void )
{
    tmp = 1;

    for ( cnt = 0; cnt < 4; cnt++ )
    {
        switch ( sel_output & tmp )
        {
            case 0x01 :
            {
                check_output = opto2_check_out1( &opto2 );

                if ( check_output == 0 )
                {
                    log_printf( &logger, "OUT1 is low %d\r\n" );
                }
                else
                {
                    log_printf( &logger, "OUT1 is high %d\r\n" );
                }
                break;
            }
            case 0x02 :
            {
                check_output = opto2_check_out2( &opto2 );

                if ( check_output == 0 )
                {
                    log_printf( &logger, "OUT2 is low %d\r\n" );
                }
                else
                {
                    log_printf( &logger, "OUT2 is high %d\r\n" );
                }
                break;
            }
            case 0x04 :
            {
                check_output = opto2_check_out3( &opto2 );

                if ( check_output == 0 )
                {
                    log_printf( &logger, "OUT3 is low %d\r\n" );
                }
                else
                {
                    log_printf( &logger, "OUT3 is high %d\r\n" );
                }
                break;
            }
            case 0x08 :
            {
                check_output = opto2_check_out4( &opto2 );

                if ( check_output == 0 )
                {
                    log_printf( &logger, "OUT4 is low %d\r\n" );
                }
                else
                {
                    log_printf( &logger, "OUT4 is high %d\r\n" );
                }
                break;
            }
            default :
            {
                break;
            }
        }

    tmp <<= 1;
    }

    Delay_ms ( 1000 );
    Delay_ms ( 1000 );
}

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.

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