optoencoder6

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Opto Encoder 6 Click

Opto Encoder 6 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 : Stefan Filipovic
• Date : Feb 2025.
• Type : GPIO type

Software Support

Example Description

This example demonstrates the use of Opto Encoder 6 Click board by processing the encoder output pin state and incrementing the step counter on falling edge.

Example Libraries

• MikroSDK.Board
• MikroSDK.Log
• Click.OptoEncoder6

Example Key Functions

• optoencoder6_cfg_setup This function initializes Click configuration structure to initial values.

void optoencoder6_cfg_setup ( optoencoder6_cfg_t *cfg );

• optoencoder6_init This function initializes all necessary pins and peripherals used for this Click board.

err_t optoencoder6_init ( optoencoder6_t *ctx, optoencoder6_cfg_t *cfg );

• optoencoder6_enable_output This function enables output by setting the EN pin to high logic state.

void optoencoder6_enable_output ( optoencoder6_t *ctx );

• optoencoder6_disable_output This function disables output by setting the EN pin to low logic state.

void optoencoder6_disable_output ( optoencoder6_t *ctx );

• optoencoder6_get_out_pin This function returns the OUT pin logic state.

uint8_t optoencoder6_get_out_pin ( optoencoder6_t *ctx );

Application Init

Initializes the driver and logger, and enables the encoder output.

void application_init ( void )
{
    log_cfg_t log_cfg;  /**< Logger config object. */
    optoencoder6_cfg_t optoencoder6_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.
    optoencoder6_cfg_setup( &optoencoder6_cfg );
    OPTOENCODER6_MAP_MIKROBUS( optoencoder6_cfg, MIKROBUS_1 );
    if ( DIGITAL_OUT_UNSUPPORTED_PIN == optoencoder6_init( &optoencoder6, &optoencoder6_cfg ) ) 
    {
        log_error( &logger, " Communication init." );
        for ( ; ; );
    }
    
    optoencoder6_enable_output ( &optoencoder6 );
    
    log_info( &logger, " Application Task " );
}

Application Task

Increments the step counter on falling edge of the encoder output pin state and displays it on the USB UART.

void application_task ( void )
{
    static uint32_t step_cnt = 0;

    log_printf( &logger, " Step counter : %lu\r\n", step_cnt );
    
    // Increment counter on falling edge of output pin
    while ( !optoencoder6_get_out_pin ( &optoencoder6 ) );
    while ( optoencoder6_get_out_pin ( &optoencoder6 ) );

    step_cnt++;
}

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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