pot

---

POT Click

POT 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 : MikroE Team
• Date : nov 2019.
• Type : ADC type

Software Support

Example Description

Click board with the accurate selectable reference voltage output.

Example Libraries

• MikroSDK.Board
• MikroSDK.Log
• Click.Pot

Example Key Functions

• pot_cfg_setup Config Object Initialization function.

void pot_cfg_setup ( pot_cfg_t *cfg ); 

• pot_init Initialization function.

err_t pot_init ( pot_t *ctx, pot_cfg_t *cfg );

• pot_read_an_pin_value This function reads results of AD conversion of the AN pin.

err_t pot_read_an_pin_value ( pot_t *ctx, uint16_t *data_out );

• pot_read_an_pin_voltage This function reads results of AD conversion of the AN pin and converts them to proportional voltage level.

err_t pot_read_an_pin_voltage ( pot_t *ctx, float *data_out );

Application Init

Performs logger and Click initialization.

void application_init ( void )
{
    log_cfg_t log_cfg;  /**< Logger config object. */
    pot_cfg_t pot_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.
    pot_cfg_setup( &pot_cfg );
    POT_MAP_MIKROBUS( pot_cfg, MIKROBUS_1 );
    if ( ADC_ERROR == pot_init( &pot, &pot_cfg ) )
    {
        log_error( &logger, " Communication init." );
        for ( ; ; );
    }
    
    log_info( &logger, " Application Task " );
}

Application Task

Reads and displays on the USB UART the voltage level measured from AN pin.

void application_task ( void )
{
    float voltage = 0;
    if ( POT_OK == pot_read_an_pin_voltage ( &pot, &voltage ) ) 
    {
        log_printf( &logger, " AN Voltage : %.3f[V]\r\n\n", voltage );
        Delay_ms ( 1000 );
    }
}

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.

---