fan2

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Fan 2 Click

Fan 2 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 : Nemanja Medakovic
• Date : Nov 2019.
• Type : I2C type

Software Support

Example Description

This example demonstrates the use of Fan 2 Click board. It demonstrates sensor measurements and fan control.

Example Libraries

• MikroSDK.Board
• MikroSDK.Log
• Click.Fan2

Example Key Functions

• fan2_cfg_setup Configuration Object Initialization function.

void fan2_cfg_setup ( fan2_cfg_t *cfg );

• fan2_init Click Initialization function.

fan2_err_t fan2_init ( fan2_t *ctx, fan2_cfg_t *cfg );

• fan2_default_cfg Click Default Configuration function.

void fan2_default_cfg ( fan2_t *ctx, fan2_wire_t n_wires );

• fan2_generic_write_byte Generic Byte Write function.

fan2_err_t fan2_generic_write_byte ( fan2_t *ctx, uint8_t reg_addr, uint8_t data_in );

• fan2_read_tacho Tachometer Read function.

fan2_err_t fan2_read_tacho ( fan2_t *ctx, uint8_t tacho_addr, uint32_t *tacho_rpm );

• fan2_direct_speed_control Direct Fan Speed Control function.

fan2_err_t fan2_direct_speed_control ( fan2_t *ctx, float speed_per );

Application Init

Initializes I2C driver and executes a default configuration for Fan 2 Click. Also initializes UART logger for results logging.

void application_init( void )
{
    fan2_cfg_t fan2_cfg;
    log_cfg_t log_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.
    fan2_cfg_setup( &fan2_cfg );
    FAN2_MAP_MIKROBUS( fan2_cfg, MIKROBUS_1 );
    fan2_init( &fan2, &fan2_cfg );
    
    fan2_default_cfg( &fan2 );
    fan2_speed = FAN2_HALF_SPEED_PER;
    Delay_ms ( 1000 );

    log_printf( &logger, "* * *  Fan 2 initialization done  * * *\r\n" );
    log_printf( &logger, "***************************************\r\n" );
    flag = 0;
}

Application Task

Increments the fan speed from half speed to maximum, and on each step measures the current fan speed in RPM and the remote temperature in Celsius. Fan speed will be incremented/decremented each second for 10 percents.

void application_task( void )
{
    fan2_direct_speed_control( &fan2, fan2_speed );

    Delay_ms ( 1000 );
    fan2_read_tacho( &fan2, FAN2_REG_TACH1_CNT, &fan2_curr_speed );
    
    fan2_read_temp( &fan2, FAN2_REG_REMOTE_TEMP_READ, &fan2_temp );

    log_printf( &logger, "* Fan 2 set speed : %.2f %%\r\n", fan2_speed );
    log_printf( &logger, "* Fan 2 current speed : %u RPM\r\n", fan2_curr_speed );
    log_printf( &logger, "* Fan 2 remote temperature : %.2f %s\r\n", fan2_temp, deg_cels );
    log_printf( &logger, "***************************************\r\n" );
    
    if ( flag == 0 ) {
        if ( fan2_speed < FAN2_MAX_SPEED_PER)
            fan2_speed += 10;
        else
            flag = 1;
    }
    
    if ( flag == 1 ) {
        if ( fan2_speed > FAN2_MIN_SPEED_PER)
            fan2_speed -= 10;
        else {
            fan2_speed = FAN2_HALF_SPEED_PER;
            flag = 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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