mikroelektronika/air_quality_3_click

Library for CCS811.

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AirQuality3 Click

• CIC Prefix : ARIQ3
• mikroSDK : YES
• Author : Katarina Perendic

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Software Support

We provide a library for the AirQuality3 Click on our LibStock page, as well as a demo application (example), developed using MikroElektronika compilers. The demo can run on all the main MikroElektronika development boards.

Library Description

Library carries all necessary functions to have complete control over AirQuallity 3 Click board.

Key functions :

• void airq3_getCO2andTVOC( uint16_t *algData ) - Read Co2 and TVOC values
• void airq3_setMeasurementMode( uint8_t mode ) - Set measurement mode
• void airq3_init() - Default module initialization, must be called before module usage

Examples Description

The demo application is composed of three sections :

• System Initialization - Initializes I2C module, set CS and RST pin as OUTPUT and INT pin as INPUT
• Application Initialization - Initializes Driver, and module with default settings and also setup measurement mode
• Application Task - (code snippet) - This functions read CO2 and TVOC value in the air and LOG informations to UART. Operation is repeated each one second.

void applicationTask()
{
    airq3_getCO2andTVOC(&AIRQ3_Data[0]);

    ByteToStr(AIRQ3_Data[0],text);
    mikrobus_logWrite("CO2 value : ",_LOG_TEXT);
    mikrobus_logWrite(text,_LOG_TEXT);
    mikrobus_logWrite("  ppm",_LOG_LINE);
     
    ByteToStr(AIRQ3_Data[1],text);
    mikrobus_logWrite("TVOC value : ",_LOG_TEXT);
    mikrobus_logWrite(text,_LOG_TEXT);
    mikrobus_logWrite("  ppb",_LOG_LINE);

    Delay_1sec();
}

The full application code, and ready to use projects can be found on our LibStock page.

mikroE Libraries used in the example:

• UART
• I2C

Additional notes and informations

Depending on the development board you are using, you may need USB UART click, USB UART 2 Click or RS232 Click to connect to your PC, for development systems with no UART to USB interface available on the board. The terminal available in all Mikroelektronika compilers, or any other terminal application of your choice, can be used to read the message.

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