Buck-Boost 3 Click

The Buck-Boost 3 Click is a voltage converter regulator, which is able to provide a regulated voltage of 3.3V or 5V on the output, even when the input voltage drops under 3V.

Click Product page

Click library

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

Software Support

We provide a library for the BuckBoost3 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 form compilers IDE(recommended way), or downloaded from our LibStock, or found on mikroE github account.

Library Description

This library contains API for BuckBoost3 Click driver.

Standard key functions :

• Config Object Initialization function.

  void buckboost3_cfg_setup ( buckboost3_cfg_t *cfg );

• Initialization function.

  BUCKBOOST3_RETVAL buckboost3_init ( buckboost3_t ctx, buckboost3_cfg_t cfg );

Example key functions :

• This function enable/disable device.

  void buckboost3_enable ( buckboost3_t *ctx, uint8_t state );

• This function gets intterupt pin state.

  uint8_t buckboost3_get_interrupt_state ( buckboost3_t *ctx );

Examples Description

This application sets buck-boost voltages.

The demo application is composed of two sections :

Application Init

Initialization driver init and enable device.

void application_init ( void )
{
    log_cfg_t log_cfg;
    buckboost3_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.

    buckboost3_cfg_setup( &cfg );
    BUCKBOOST3_MAP_MIKROBUS( cfg, MIKROBUS_1 );
    buckboost3_init( &buckboost3, &cfg );

    buckboost3_enable ( &buckboost3, BUCKBOOST3_DEVICE_ENABLE );
    log_info( &logger, " Device enabled " );
    Delay_ms ( 1000 );
    Delay_ms ( 1000 );
}

Application Task

It checks if the input voltage is below the operating voltage.

void application_task ( void )
{
    if ( !buckboost3_get_interrupt_state( &buckboost3 ) )
    {
        log_error( &logger, " Low input voltage !!!" );
    }
    Delay_ms ( 1000 );
}

The full application code, and ready to use projects can be installed directly form compilers IDE(recommneded) or found on LibStock page or mikroE GitHub accaunt.

Other mikroE Libraries used in the example:

• MikroSDK.Board
• MikroSDK.Log
• Click.BuckBoost3

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. The terminal available in all Mikroelektronika compilers, or any other terminal application of your choice, can be used to read the message.