README.md

Airnow AQI C code

Implementation of AQI calculations from raw sensor concentrations in aqi.h.

See air-quality.yaml for an ESPHome exmaple that uses an adafruit esp32s3 connected to a PMSA003I air quality sensor module.

References

• https://www.airnow.gov/sites/default/files/2020-05/aqi-technical-assistance-document-sept2018.pdf
• https://www.adafruit.com/product/5477
• https://www.adafruit.com/product/4632