airquality4

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Air quality 4 Click

Air quality 4 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 : MikroE Team
• Date : Dec 2019.
• Type : I2C type

Software Support

Example Description

This example measures the quality od air.

Example Libraries

• MikroSDK.Board
• MikroSDK.Log
• Click.AirQuality4

Example Key Functions

• airquality4_cfg_setup Config Object Initialization function.

void airquality4_cfg_setup ( airquality4_cfg_t *cfg );

• airquality4_init Initialization function.

err_t airquality4_init ( airquality4_t *ctx, airquality4_cfg_t *cfg );

• airquality4_default_cfg Click Default Configuration function.

void airquality4_default_cfg ( airquality4_t *ctx );

• air_quality4_soft_reset Function calls general reset witch resets all states on the chip.

void air_quality4_soft_reset ( airquality4_t *ctx );

• air_quality4_get_co2_and_tvoc Function writes 2 bytes CO2 data and 2 bytes TVOC data without CRC data.

void air_quality4_get_co2_and_tvoc ( airquality4_t *ctx, uint16_t *value );

• air_quality4_get_h2_and_ehtoh Function writes 2 bytes H2 data and 2 bytes EthOH data without CRC data.

void air_quality4_get_h2_and_ehtoh ( airquality4_t *ctx, uint16_t *value );

Application Init

Initializes Click driver and gets ID data.

void application_init ( void )
{
    log_cfg_t log_cfg;
    airquality4_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 ----" );

    //  Click initialization.

    airquality4_cfg_setup( &cfg );
    AIRQUALITY4_MAP_MIKROBUS( cfg, MIKROBUS_1 );
    airquality4_init( &airquality4, &cfg );
    airquality4_default_cfg( &airquality4 );
}

Application Task

Performs measurements of air concentracion for H2, EthOH, CO2 and TVOC data.

void application_task ( void )
{
    air_quality4_get_h2_and_ethon( &airquality4, data_buffer);

    log_printf( &logger, "H2 value is: %u\n", data_buffer[ 0 ] );
    log_printf( &logger, "EthOH value is:  %u\n", data_buffer[ 1 ] );

    air_quality4_set_baseline( &airquality4 );
    air_quality4_get_co2_and_tvoc( &airquality4, &data_buffer[ 0 ] );
    
    log_printf( &logger, "CO2 value is: %u\n", data_buffer[ 0 ] );
    log_printf( &logger, "TVOC value is: %u\n\n", data_buffer[ 1 ] );

    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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