dcmotor

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DC MOTOR Click

DC MOTOR 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 : Nikola Peric
• Date : Feb 2022.
• Type : PWM type

Software Support

Example Description

This application change the speed and direction of DC Motor.

Example Libraries

• MikroSDK.Board
• MikroSDK.Log
• Click.DcMotor

Example Key Functions

• dcmotor_cfg_setup Config Object Initialization function.

void dcmotor_cfg_setup ( dcmotor_cfg_t *cfg );

• dcmotor_init Initialization function.

err_t dcmotor_init ( dcmotor_t *ctx, dcmotor_cfg_t *cfg );

• dcmotor_pwm_start Start PWM module.

void dcmotor_pwm_start ( dcmotor_t *ctx );

• dcmotor_enable Enable the motor function.

void dcmotor_enable ( dcmotor_t *ctx );

• dcmotor_sleep_mode Set sleep mode function.

void dcmotor_sleep_mode ( dcmotor_t *ctx );

Application Init

Initialization driver enable's - GPIO, PWM initialization, set PWM duty cycle and PWM frequency, enable the motor, start PWM and start write log.

void application_init ( void )
{
    log_cfg_t log_cfg;
    dcmotor_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 );
    log_info( &logger, "---- Application Init ----" );

    //  Click initialization.

    dcmotor_cfg_setup( &cfg );
    DCMOTOR_MAP_MIKROBUS( cfg, MIKROBUS_1 );
    dcmotor_init( &dcmotor, &cfg );

    log_printf( &logger, " Initialization  PWM \r\n" );
    
    dcmotor_set_duty_cycle ( &dcmotor, 0.0 );
    dcmotor_pwm_start( &dcmotor );
    log_printf( &logger, "---------------------\r\n" );
}

Application Task

This is a example which demonstrates the use of DC Motor Click board. DC Motor Click communicates with register via PWM interface. It shows moving in the left direction from slow to fast speed and from fast to slow speed. Results are being sent to the Usart Terminal where you can track their changes.

void application_task ( )
{    
    static int8_t duty_cnt = 1;
    static int8_t duty_inc = 1;
    float duty = duty_cnt / 10.0;

    if ( dcmotor_direction == 1 )
    {
        dcmotor_sleep_mode ( &dcmotor );
        dcmotor_right_direction_slow ( &dcmotor );
        log_printf( &logger, "> CLOCKWISE <\r\n" );
        dcmotor_enable ( &dcmotor );
    }
    else
    {
        dcmotor_sleep_mode ( &dcmotor );
        dcmotor_left_direction_slow ( &dcmotor );
        log_printf( &logger, "> COUNTER CLOCKWISE <\r\n" );
        dcmotor_enable ( &dcmotor );
    }

    dcmotor_set_duty_cycle ( &dcmotor, duty );
    
    Delay_ms ( 500 );

    if ( 10 == duty_cnt ) 
    {
        duty_inc = -1;
        
        if ( dcmotor_direction == 1 )
        {
            dcmotor_direction = 0;
        }
        else if ( dcmotor_direction == 0 )
        {
            dcmotor_direction = 1;
        }
    }
    else if ( 0 == duty_cnt ) 
    {
        duty_inc = 1;
    }
    duty_cnt += duty_inc;

}

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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