stepper18

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Stepper 18 Click

Stepper 18 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 : Luka Filipovic
• Date : May 2021.
• Type : I2C type

Software Support

Example Description

This example showcases the device's ability to control the motor. It initializes the device for control and moves the motor in two directions in a variety of speeds for 360 degrees.

Example Libraries

• MikroSDK.Board
• MikroSDK.Log
• Click.Stepper18

Example Key Functions

• stepper18_cfg_setup Config Object Initialization function.

void stepper18_cfg_setup ( stepper18_cfg_t *cfg );

• stepper18_init Initialization function.

err_t stepper18_init ( stepper18_t *ctx, stepper18_cfg_t *cfg );

• stepper18_default_cfg Click Default Configuration function.

void stepper18_default_cfg ( stepper18_t *ctx );

• stepper18_set_out_voltage Set voltage reference.

err_t stepper18_set_out_voltage ( stepper18_t *ctx, uint16_t voltage );

• stepper18_set_dir Set direction.

void stepper18_set_dir ( stepper18_t *ctx, uint8_t value );

• stepper18_move_motor_angle Move motor in angle value.

void stepper18_move_motor_angle ( stepper18_t *ctx, float degree, uint8_t step_res, uint8_t speed );

Application Init

Initializes UART and I2C communication modules, and additional
pins for motor control, and set's default configuration

void application_init ( void ) 
{
    log_cfg_t log_cfg;  /**< Logger config object. */
    stepper18_cfg_t stepper18_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.
    stepper18_cfg_setup( &stepper18_cfg );
    STEPPER18_MAP_MIKROBUS( stepper18_cfg, MIKROBUS_1 );
    err_t init_flag = stepper18_init( &stepper18, &stepper18_cfg );
    if ( init_flag == I2C_MASTER_ERROR ) 
    {
        log_error( &logger, " Application Init Error. " );
        log_info( &logger, " Please, run program again... " );
        for ( ; ; );
    }

    stepper18_default_cfg ( &stepper18 );
    log_info( &logger, " Application Task " );
    stepper18_set_dir( &stepper18, 0 );
}

Application Task

First it move motor clockwise for 360 degrees in medium speed. Then changes direction and moves motor for 180 degrees in slow speed, and additional 180 degrees in fast speed.

void application_task ( void ) 
{
    static uint8_t direction = 0;
    log_printf( &logger, "> Move 360deg in CW direction.\r\n" );
    stepper18_move_motor_angle( &stepper18, 360, STEPPER18_STEP_RES_FULL, STEPPER18_SPEED_MEDIUM );
    direction = !direction;
    stepper18_set_dir( &stepper18, direction );
    Delay_ms ( 500 );
    log_printf( &logger, "> Move 180deg in CCW direction.\r\n" );
    stepper18_move_motor_angle( &stepper18, 180, STEPPER18_STEP_RES_FULL, STEPPER18_SPEED_SLOW );
    Delay_ms ( 1000 );
    log_printf( &logger, "> Move 180deg in CCW direcion.\r\n" );
    stepper18_move_motor_angle( &stepper18, 180, STEPPER18_STEP_RES_FULL, STEPPER18_SPEED_FAST );
    direction = !direction;
    stepper18_set_dir( &stepper18, direction );
    Delay_ms ( 1000 );
    Delay_ms ( 1000 );
}

Note

Step resolution is changed by the switches[ M0, M1 ] on device. Full step : M0=>0 , M1=>0; Half step : M0=>1 , M1=>0; Quarter step : M0=>0 , M1=>1; 1/8 step : M0=>1 , M1=>1; 1/16 step : M0=>Hi-Z , M1=>1; 1/32 step : M0=>0 , M1=>Hi-Z; 1/64 step : M0=>Hi-Z , M1=>0; 1/128 step : M0=>Hi-Z , M1=>Hi-Z; 1/256 step : M0=>1 , M1=>0;

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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