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https://github.com/cedargrovestudios/circuitpython_airqualitytools

A collection of CircuitPython helpers used for the calculation of PM2.5 and CO2 air quality levels.
https://github.com/cedargrovestudios/circuitpython_airqualitytools

air-quality air-quality-index aqi circuitpython circuitpython-community-bundle iaq indoor-air-quality language-translator

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A collection of CircuitPython helpers used for the calculation of PM2.5 and CO2 air quality levels.

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README 

        
Introduction

============



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A collection of CircuitPython helpers used for the calculation of PM2.5 and CO2 air quality levels.



``CO2_IAQ`` calculates the Indoor Air Quality Index (IAQ) as derived from a CO2 ppm

concentration measurement. Returns a data valid flag, CO2 input concentration

value, the RGB warning color integer value, and the corresponding US English

description or warning.



``PM25_AQI`` calculates EPA Air Quality Index (AQI) as derived from PM2.5

particulate concentration. Returns a data valid flag, calculated air quality

index, the RGB warning color integer value, and the corresponding US English

description or warning.



``Translate`` is a collection of description translators. English, Deutsch

(German), Español (Spanish), Français (French), and Pirate are currently supported.



.. image:: https://github.com/CedarGroveStudios/CircuitPython_AirQualityTools/blob/main/media/WARNING.jpg



Dependencies

=============

This driver depends on:



* `Adafruit CircuitPython `_



Please ensure all dependencies are available on the CircuitPython filesystem.

This is easily achieved by downloading

`the Adafruit library and driver bundle `_

or individual libraries can be installed using

`circup `_.



Installing to a Connected CircuitPython Device with Circup

==========================================================



Make sure that you have ``circup`` installed in your Python environment.

Install it with the following command if necessary:



.. code-block:: shell



    pip3 install circup



With ``circup`` installed and your CircuitPython device connected use the

following command to install:



.. code-block:: shell



    circup install cedargrove_airqualitytools



Or the following command to update an existing version:



.. code-block:: shell



    circup update



Usage Example

=============



.. code-block:: python



    from cedargrove_airqualitytools.pm25_aqi import pm25_ppm_to_quality

    from cedargrove_airqualitytools.co2_iaq import co2_ppm_to_quality

    from cedargrove_airqualitytools.translate.english_to_francais import interpret



    TRANSLATE = True  # Enable language translator



    # Read some sensor values

    PM25_CONCENTRATION = 10  # PM2.5 concentration of 10ppm; GOOD AQI

    CO2_CONCENTRATION = 1450  # CO2 concentration of 1450ppm; POOR IAQ



    # Calculate the quality and description

    _, aqi_value, _, aqi_desc = pm25_ppm_to_quality(PM25_CONCENTRATION)

    _, iaq_value, _, iaq_desc = co2_ppm_to_quality(CO2_CONCENTRATION)



    # Print the AQI, description, and translation

    print(f"PM2.5 AQI = {aqi_value} : {aqi_desc}")

    print(interpret(TRANSLATE, aqi_desc))



    # Print the IAQ, description, and translation

    print(f"CO2 IAQ = {iaq_value} : {iaq_desc}")

    print(interpret(TRANSLATE, iaq_desc))



Documentation

=============

API documentation for this library can be found on `Read the Docs `_.



For information on building library documentation, please check out

`this guide `_.



Contributing

============



Contributions are welcome! Please read our `Code of Conduct

`_

before contributing to help this project stay welcoming.