daq3

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DAQ 3 Click

DAQ 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 : Nenad Filipovic
• Date : Dec 2020.
• Type : SPI type

Software Support

Example Description

The demo application reads ADC value, calculate and display voltage ( mV ).

Example Libraries

• MikroSDK.Board
• MikroSDK.Log
• Click.Daq3

Example Key Functions

• daq3_cfg_setup Config Object Initialization function.

void daq3_cfg_setup ( daq3_cfg_t *cfg );

• daq3_init Initialization function.

err_t daq3_init ( daq3_t *ctx, daq3_cfg_t *cfg );

• daq3_default_cfg Click Default Configuration function.

void daq3_default_cfg ( daq3_t *ctx );

• daq3_get_voltage DAQ 3 get voltage function.

float daq3_get_voltage ( daq3_t *ctx );

• daq3_get_conversion_result DAQ 3 get conversion result function.

int32_t daq3_get_conversion_result ( daq3_t *ctx, daq3_reg_cfg_t cfg_data );

• daq3_generic_read DAQ 3 data reading function.

err_t daq3_generic_read ( daq3_t *ctx, uint8_t reg, uint8_t *data_out );

Application Init

Initializes SPI driver and start to write log.

void application_init ( void ) 
{
    log_cfg_t log_cfg;    /**< Logger config object. */
    daq3_cfg_t daq3_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_printf( &logger, "\r\n" );
    log_info( &logger, " Application Init " );

    // Click initialization.

    daq3_cfg_setup( &daq3_cfg );
    DAQ3_MAP_MIKROBUS( daq3_cfg, MIKROBUS_1 );
    err_t init_flag  = daq3_init( &daq3, &daq3_cfg );
    if ( init_flag == SPI_MASTER_ERROR ) {
        log_error( &logger, " Application Init Error. " );
        log_info( &logger, " Please, run program again... " );

        for ( ; ; );
    }

    daq3_default_cfg ( &daq3 );
    log_info( &logger, " Application Task \r\n" );
    Delay_ms ( 100 );
    daq3_get_voltage( &daq3 );
    log_printf( &logger, "---------------------------\r\n" );
    log_printf( &logger, "         DAQ 3 Click       \r\n" );
    log_printf( &logger, "---------------------------\r\n" );
}

Application Task

This is an example that demonstrates the use of the DAQ 3 Click board. In this example, we read ADC value, calculate and display the voltage ( mV ) data. The maximum output voltage ( Vout ) is 4V and depends on the gain that is set at the Click. The formula used to calculate is Vin = Vout / gain. Keep in mind that Vout should not exceed 4V. For example, if the gain is set to 2 the maximum Vin is 2V ( 2V = 4V / 2 ). Results are being sent to the Usart Terminal where you can track their changes.

void application_task ( void ) 
{   
    float voltage = daq3_get_voltage( &daq3 );
    log_printf( &logger, "   Voltage : %.3f mV       \r\n", voltage );
    log_printf( &logger, "---------------------------\r\n" );
    Delay_ms ( 1000 );
    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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