DIY Air Quality Meter & Emissions Tester

This little project shows how a simple hand held meter can be made for testing for air pollutants such as smoke and dust. It is based on the Sharp GP2Y1010AU0F sensor which measures light reflected from airborne particulates passing through the sensor. It is very similar in operation to the popular GP2Y0A21YK0F from Sharp which is used for measuring distance using reflected infrared light.”

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