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mikroSDK Library

Fan 9 Click

Rating:

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Author: MIKROE

Last Updated: 2024-10-31

Package Version: 2.1.0.3

mikroSDK Library: 2.0.0.0

Category: Brushless

Downloaded: 61 times

Not followed.

License: MIT license  

Fan 9 Click is a compact add-on board designed for high-power fan applications requiring low noise and minimal vibration. This board features the A5932, an automotive-grade three-phase sinusoidal sensorless fan controller from Allegro Microsystems. This board operates with a power supply range of 12V to 42V, using a sinusoidal drive to reduce audible noise and vibration. It features I2C communication, PWM speed control, and a red FLT LED indicator for fault conditions.

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mikroSDK Library Blog


Fan 9 Click

Fan 9 Click is a compact add-on board designed for high-power fan applications requiring low noise and minimal vibration. This board features the A5932, an automotive-grade three-phase sinusoidal sensorless fan controller from Allegro Microsystems. This board operates with a power supply range of 12V to 42V, using a sinusoidal drive to reduce audible noise and vibration. It features I2C communication, PWM speed control, and a red FLT LED indicator for fault conditions.

fan9_click.png

Click Product page


Click library

  • Author : Stefan Ilic
  • Date : Jan 2024.
  • Type : I2C type

Software Support

We provide a library for the Fan 9 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 Fan 9 Click driver.

Standard key functions :

  • fan9_cfg_setup Config Object Initialization function.

    void fan9_cfg_setup ( fan9_cfg_t *cfg );
  • fan9_init Initialization function.

    err_t fan9_init ( fan9_t *ctx, fan9_cfg_t *cfg );
  • fan9_default_cfg Click Default Configuration function.

    err_t fan9_default_cfg ( fan9_t *ctx );

Example key functions :

  • fan9_set_direction This function is used to set direction of Fan 9 Click board.

    void fan9_set_direction ( fan9_t *ctx, uint8_t dir );
  • fan9_write_reg This function reads a data bytes from the selected register by using I2C serial interface.

    err_t fan9_write_reg ( fan9_t *ctx, uint8_t reg, uint16_t data_in );
  • fan9_set_pwm This function is used to get PWM value of Fan 9 Click board.

    err_t fan9_set_pwm ( fan9_t *ctx, uint8_t pwm_val );

Example Description

This example demonstrates the use of FAN 9 Click board, by changing speed of the fan from 0 to 100 percent, then decreasing it back to 0.

The demo application is composed of two sections :

Application Init

Initializes the driver and performs the Click default configuration.


void application_init ( void ) 
{
    log_cfg_t log_cfg;  /**< Logger config object. */
    fan9_cfg_t fan9_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.
    fan9_cfg_setup( &fan9_cfg );
    FAN9_MAP_MIKROBUS( fan9_cfg, MIKROBUS_1 );
    if ( I2C_MASTER_ERROR == fan9_init( &fan9, &fan9_cfg ) ) 
    {
        log_error( &logger, " Communication init." );
        for ( ; ; );
    }

    if ( FAN9_ERROR == fan9_default_cfg ( &fan9 ) )
    {
        log_error( &logger, " Default configuration." );
        for ( ; ; );
    }

    fan9_set_pwm( &fan9, 10 );
    // Waiting for motor to start.
    while ( 0 == fan9_get_rd_pin( &fan9 ) );

    log_info( &logger, " Application Task " );
}

Application Task

Changes the speed of fans by changing the PWM duty cycle. The results are being displayed via USB UART where you can track their changes.

void application_task ( void ) 
{
    static int8_t duty_cnt = 10;
    static int8_t duty_inc = 10;
    uint8_t direction = FAN9_DIRECTION_CW;

    fan9_set_pwm( &fan9, duty_cnt );
    log_printf( &logger, " Set PWM: %d%% \r\n", ( uint16_t ) duty_cnt );

    if ( 100 == duty_cnt ) 
    {
        duty_inc = -10;
    }
    else if ( 0 == duty_cnt ) 
    {
        duty_inc = 10;
    }
    duty_cnt += duty_inc;
    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.Fan9

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.


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