adc3

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ADC 3 Click

ADC 3 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 : Mihajlo Djordjevic
• Date : Dec 2019.
• Type : I2C type

Software Support

Example Description

ADC 3 example code shows usage of analog-to-digital converter.

Example Libraries

• MikroSDK.Board
• MikroSDK.Log
• Click.Adc3

Example Key Functions

• adc3_cfg_setup Config Object Initialization function.

void adc3_cfg_setup ( adc3_cfg_t *cfg );

• adc3_init Initialization function.

err_t adc3_init ( adc3_t *ctx, adc3_cfg_t *cfg );

• adc3_default_cfg Click Default Configuration function.

void adc3_default_cfg ( adc3_t *ctx );

• adc3_default_cfg This function is used to initiate general call reset.

void adc3_default_cfg ( adc3_t *ctx );

• adc3_read_voltage This function is used to read ADC value and calculate voltage.

float adc3_read_voltage ( adc3_t *ctx, uint8_t channel, uint8_t resolution, uint8_t gain );

Application Init

Application Init performs Logger and Click initialization.

void application_init ( void )
{
    log_cfg_t log_cfg;
    adc3_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_printf( &logger, "--------------------------\r\n" );
    log_printf( &logger, "     Application  Init\r\n" );
    Delay_ms ( 100 );

    //  Click initialization.

    adc3_cfg_setup( &cfg );
    ADC3_MAP_MIKROBUS( cfg, MIKROBUS_1 );
    adc3_init( &adc3, &cfg );
    
    log_printf( &logger, "--------------------------\r\n" );
    log_printf( &logger, " ------ ADC 3 Click ----- \r\n" );
    log_printf( &logger, "--------------------------\r\n" );
    Delay_ms ( 1000 );
    
    adc3_default_cfg( &adc3 );
    Delay_ms ( 100 );
    
    log_printf( &logger, " -- Initialization done --\r\n" );
    log_printf( &logger, "--------------------------\r\n" );
    Delay_ms ( 1000 );
}

Application Task

This is an example that shows the capabilities of the ADC 3 Click by taking voltage measurements from all four channel. Results are being sent to the UART Terminal where you can track their changes. All data logs write on USB UART and changes for every 1 sec.

void application_task ( void )
{
    read_volt = adc3_read_voltage( &adc3, ADC3_SELECT_CHANNEL_1, ADC3_SAMPLE_RATE_12, ADC3_PGA_GAIN_X1 );
    Delay_ms ( 100 );
    log_printf( &logger, "Channel 1 : %0.2f  V \r\n", read_volt );

    read_volt = adc3_read_voltage( &adc3, ADC3_SELECT_CHANNEL_2, ADC3_SAMPLE_RATE_12, ADC3_PGA_GAIN_X1 );
    Delay_ms ( 100 );
    log_printf( &logger, "Channel 2 : %0.2f  V \r\n", read_volt );
    
    read_volt = adc3_read_voltage( &adc3, ADC3_SELECT_CHANNEL_3, ADC3_SAMPLE_RATE_12, ADC3_PGA_GAIN_X1 );
    Delay_ms ( 100 );
    log_printf( &logger, "Channel 3 : %0.2f  V \r\n", read_volt );
    
    read_volt = adc3_read_voltage( &adc3, ADC3_SELECT_CHANNEL_4, ADC3_SAMPLE_RATE_12, ADC3_PGA_GAIN_X1 );
    Delay_ms ( 100 );
    log_printf( &logger, "Channel 4 : %0.2f  V \r\n", read_volt );
    
    log_printf( &logger, "--------------------------\r\n" );
    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.

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