microwave6

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Microwave 6 Click

Microwave 6 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 : May 2023.
• Type : ADC/I2C type

Software Support

Example Description

This example demonstrates the use of the Microwave 6 Click board™ by reading and displaying the results of AD conversion and motion detection.

Example Libraries

• MikroSDK.Board
• MikroSDK.Log
• Click.Microwave6

Example Key Functions

• microwave6_cfg_setup Config Object Initialization function.

void microwave6_cfg_setup ( microwave6_cfg_t *cfg );

• microwave6_init Initialization function.

err_t microwave6_init ( microwave6_t *ctx, microwave6_cfg_t *cfg );

• microwave6_read_raw_adc Microwave 6 read raw ADC value function.

err_t microwave6_read_raw_adc ( microwave6_t *ctx, uint16_t *raw_adc );

• microwave6_read_voltage Microwave 6 read voltage level function.

err_t microwave6_read_voltage ( microwave6_t *ctx, float *voltage );

• microwave6_set_vref Microwave 6 set vref function.

err_t microwave6_set_vref ( microwave6_t *ctx, float vref );

Application Init

The initialization of I2C or ADC module and log UART. After driver initialization, the app calculates the reference ADC value.

void application_init ( void )
{
    log_cfg_t log_cfg;  /**< Logger config object. */
    microwave6_cfg_t microwave6_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.
    microwave6_cfg_setup( &microwave6_cfg );
    MICROWAVE6_MAP_MIKROBUS( microwave6_cfg, MIKROBUS_1 );
    err_t init_flag = microwave6_init( &microwave6, &microwave6_cfg );
    if ( ( ADC_ERROR == init_flag ) || ( I2C_MASTER_ERROR == init_flag ) )
    {
        log_error( &logger, " Communication init." );
        for ( ; ; );
    }
    
    log_printf( &logger, " Calibrating the sensor...\r\n" );
    log_printf( &logger, " There must be no movement near the sensor!\r\n" );
    log_printf( &logger, "----------------------------------\r\n" );
    Delay_ms ( 1000 );
    Delay_ms ( 1000 );
    Delay_ms ( 1000 );
    
    if ( MICROWAVE6_OK == microwave6_read_voltage( &microwave6, &reference ) )
    {
        log_printf( &logger, " The sensor has been calibrated!\r\n" );
        log_printf( &logger, "  Detector AN Voltage : %.3f[V]\r\n", reference );
        log_printf( &logger, "----------------------------------\r\n" );
        Delay_ms ( 100 );
    }
    else
    {
        log_error( &logger, " Communication error." );
        for ( ; ; );
    }
    
    log_printf( &logger, "The motion detector unit is ready.\r\n" );
    log_printf( &logger, "----------------------------------\r\n" );
    Delay_ms ( 100 );
}

Application Task

The demo application reads the ADC results, takes an ADC sample, compares the difference between the taken samples and the ADC reference value, and reports the movement if the difference is higher/lower than the selected threshold value. Results are being sent to the UART Terminal, where you can track their changes.

void application_task ( void ) 
{
    if ( MICROWAVE6_OK == microwave6_read_voltage( &microwave6, &voltage ) )
    {
        if ( ( ( voltage + MICROWAVE6_THRESHOLD ) < reference ) || 
             ( ( voltage - MICROWAVE6_THRESHOLD ) > reference ) )
        {
            if ( MICROWAVE6_FLAG_SET == flag )
            {
                log_printf( &logger, " Motion detected!\r\n" );
                log_printf( &logger, " Detector AN Voltage : %.3f[V]\r\n", voltage );
                log_printf( &logger, "----------------------------------\r\n" );
                flag = MICROWAVE6_FLAG_CLEAR;
                Delay_ms ( 100 );
            }
        }
        else
        {
            flag = MICROWAVE6_FLAG_SET;
        }
    }
}

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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