Science – technology
Handheld device that monitors air quality
It is difficult to know what the air around us contains.
This is an open source project with full build details available on the Hackster site.
The sensor is limited in that it does not indicate the measurement range but only provides the air quality index (AQI).2smoke particles, benzene, alcohol, ammonia, nitrogen oxide.
People who want to make their own devices can use any type of microcontroller, but must pay attention to how to charge the battery.
AQI is an air quality index that measures 5 main components including soil ozone, suspended particulate matter, CO, SO2NEE2.
Current AQI measurement is mainly performed by fixed stations.
