Brushless 12 Click

Brushless 12 Click is a compact add-on board suitable for controlling BLDC motors with any MCU. This board features the L6235, DMOS fully integrated 3-phase motor driver with overcurrent protection from STMicroelectronics.

Click Product page

Click library

• Author : Stefan Filipovic
• Date : Jun 2021.
• Type : GPIO type

Software Support

We provide a library for the Brushless12 Click as well as a demo application (example), developed using MikroElektronika compilers. The demo can run on all the main MikroElektronika development boards.

Package can be downloaded/installed directly from NECTO Studio Package Manager(recommended way), downloaded from our LibStock™ or found on Mikroe github account.

Library Description

This library contains API for Brushless12 Click driver.

Standard key functions :

• brushless12_cfg_setup Config Object Initialization function.

  void brushless12_cfg_setup ( brushless12_cfg_t *cfg );

• brushless12_init Initialization function.

  BRUSHLESS12_RETVAL brushless12_init ( brushless12_t *ctx, brushless12_cfg_t *cfg );

• brushless12_default_cfg Click Default Configuration function.

  void brushless12_default_cfg ( brushless12_t *ctx );

Example key functions :

• brushless12_set_brake This function sets the BRK pin to the desired state.

  void brushless12_set_brake ( brushless12_t *ctx, uint8_t state );

• brushless12_set_direction This function sets the F/R pin to the desired state.

  void brushless12_set_direction ( brushless12_t *ctx, uint8_t state );

• brushless12_set_enable This function sets the EN pin to the desired state.

  void brushless12_set_enable ( brushless12_t *ctx, uint8_t state );

Example Description

This example demonstrates the use of Brushless 12 Click board.

The demo application is composed of two sections :

Application Init

Initializes the driver and sets the Click default configuration.

void application_init ( void )
{
    log_cfg_t log_cfg;                  /**< Logger config object. */
    brushless12_cfg_t brushless12_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.

    brushless12_cfg_setup( &brushless12_cfg );
    BRUSHLESS12_MAP_MIKROBUS( brushless12_cfg, MIKROBUS_1 );

    if ( brushless12_init( &brushless12, &brushless12_cfg ) == DIGITAL_OUT_UNSUPPORTED_PIN ) 
    {
        log_error( &logger, " Application Init Error. " );
        log_info( &logger, " Please, run program again... " );

        for ( ; ; );
    }

    brushless12_default_cfg( &brushless12 );
    Delay_ms ( 100 );
    log_info( &logger, " Application Task " );
}

Application Task

Drives the motor in the forward direction for 5 seconds, then pulls brake for 2 seconds, and after that drives it in the reverse direction for 5 seconds, and pulls brake for 2 seconds. Each step will be logged on the USB UART where you can track the program flow.

void application_task ( void )
{
    log_printf( &logger, "The motor turns forward! \r\n" );
    brushless12_set_direction ( &brushless12, BRUSHLESS12_DIR_FORWARD );
    brushless12_set_brake ( &brushless12, BRUSHLESS12_START );
    Delay_ms ( 1000 );
    Delay_ms ( 1000 );
    Delay_ms ( 1000 );
    Delay_ms ( 1000 );
    Delay_ms ( 1000 );

    log_printf( &logger, "Pull brake! \r\n" );
    brushless12_set_brake ( &brushless12, BRUSHLESS12_BRAKE );
    Delay_ms ( 1000 );
    Delay_ms ( 1000 );

    log_printf( &logger, "The motor turns in reverse! \r\n" );
    brushless12_set_direction ( &brushless12, BRUSHLESS12_DIR_REVERSE );
    brushless12_set_brake ( &brushless12, BRUSHLESS12_START );
    Delay_ms ( 1000 );
    Delay_ms ( 1000 );
    Delay_ms ( 1000 );
    Delay_ms ( 1000 );
    Delay_ms ( 1000 );

    log_printf( &logger, "Pull brake! \r\n" );
    brushless12_set_brake ( &brushless12, BRUSHLESS12_BRAKE );
    Delay_ms ( 1000 );
    Delay_ms ( 1000 );
}

The full application code, and ready to use projects can be installed directly from NECTO Studio Package Manager(recommended way), downloaded from our LibStock™ or found on Mikroe github account.

Other Mikroe Libraries used in the example:

• MikroSDK.Board
• MikroSDK.Log
• Click.Brushless12

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. UART terminal is available in all MikroElektronika compilers.