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Light Temp Click

Light Temp 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.

Click Library

  • Author : Nikola Peric
  • Date : Feb 2022.
  • Type : I2C type

Software Support

Example Description

This application controls light intensity of LEDs.

Example Libraries

  • MikroSDK.Board
  • MikroSDK.Log
  • Click.LightTemp

Example Key Functions

  • lighttemp_cfg_setup Config Object Initialization function.
void lighttemp_cfg_setup ( lighttemp_cfg_t *cfg );
  • lighttemp_init Initialization function.
err_t lighttemp_init ( lighttemp_t *ctx, lighttemp_cfg_t *cfg );
  • lighttemp_get_interrupt_state Get INT pin state.
uint8_t lighttemp_get_interrupt_state ( lighttemp_t *ctx );
  • lighttemp_get_pg_voltage Get voltage.
uint16_t lighttemp_get_pg_voltage ( lighttemp_t *ctx );
  • lighttemp_cs_set_state Start PW2 module.
void lighttemp_cs_set_state ( lighttemp_t *ctx, uint8_t state );

Application Init

Initialization driver init and pwm init for all LED's

void application_init ( void )
{
    log_cfg_t log_cfg;
    lighttemp_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 ----" );
    Delay_ms ( 100 );
    
    //  Click initialization.

    lighttemp_cfg_setup( &cfg );
    LIGHTTEMP_MAP_MIKROBUS( cfg, MIKROBUS_1 );
    lighttemp_init( &lighttemp, &cfg );
    
    lighttemp_led1_set_duty_cycle ( &lighttemp, 0.0 );
    lighttemp_led2_set_duty_cycle ( &lighttemp, 0.0 );
    
    log_info( &logger, "---- Application Task ----" );

    Delay_ms ( 500 );
}

Application Task

This is an example that demonstrates the use of the Light Temp Click board. This example shows the automatic control of the LED 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;

    lighttemp_led1_set_duty_cycle ( &lighttemp, duty );
    lighttemp_led2_set_duty_cycle ( &lighttemp, duty );
    
    lighttemp_led1_pwm_start( &lighttemp );
    lighttemp_led2_pwm_start( &lighttemp );

    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.