leddriver2

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LED Driver 2 Click

LED Driver 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 : Nikola Peric
• Date : Feb 2022.
• Type : PWM type

Software Support

Example Description

This app enables usage of compact, high-efficiency, fixed frequency, synchronous step-up converter, optimized to drive one LED with the constant current.

Example Libraries

• MikroSDK.Board
• MikroSDK.Log
• Click.LedDriver2

Example Key Functions

• leddriver2_cfg_setup Config Object Initialization function.

  void leddriver2_cfg_setup ( leddriver2_cfg_t *cfg );

• leddriver2_init Initialization function.

  err_t leddriver2_init ( leddriver2_t *ctx, leddriver2_cfg_t *cfg );

• leddriver2_set_duty_cycle This function sets the PWM duty cycle.

  void leddriver2_set_duty_cycle ( leddriver2_t *ctx, pwm_data_t duty_cycle );

• leddriver2_pwm_stop This function stops PWM module.

  void leddriver2_pwm_stop ( leddriver2_t *ctx );

• leddriver2_pwm_start This function starts PWM module.

  void leddriver2_pwm_start ( leddriver2_t *ctx );

Application Init

Initialization driver enables - GPIO, PWM initialization set PWM duty cycle and start PWM.

void application_init ( void )
{
    log_cfg_t log_cfg;
    leddriver2_cfg_t cfg;

    LOG_MAP_USB_UART( log_cfg );
    log_init( &logger, &log_cfg );
    log_info( &logger, "---- Application Init ----" );
 
    //  Click initialization.
 
    leddriver2_cfg_setup( &cfg );
    LEDDRIVER2_MAP_MIKROBUS( cfg, MIKROBUS_1 );
    leddriver2_init( &leddriver2, &cfg );
 
    leddriver2_pwm_start( &leddriver2 );
}

Application Task

This is an example that demonstrates the use of the LED Driver 2 Click board. This example shows the automatic control halogen bulb light intensity, the first intensity of light is rising and then the intensity of light is falling. Results are being sent to the Usart Terminal where you can track their changes.

void application_task ( void ) 
{
    static int8_t duty_cnt = 1;
    static int8_t duty_inc = 1;
    float duty = duty_cnt / 10.0;
    
    leddriver2_set_duty_cycle ( &leddriver2, duty );
    log_printf( &logger, "> Duty: %d%%\r\n", ( uint16_t )( duty_cnt * 10 ) );
    
    Delay_ms ( 500 );
    
    if ( 10 == duty_cnt ) 
    {
        duty_inc = -1;
    }
    else if ( 0 == duty_cnt ) 
    {
        duty_inc = 1;
    }
    duty_cnt += duty_inc;
}

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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