PCWorld explains how to create an affordable CO2 air quality monitor using a Raspberry Pi and MH-Z19C sensor for under $40. This DIY project helps monitor indoor air quality since high CO2 levels ...
New Year’s Eve often turns even the most hands-on tinkerers into passive spectators. We gather around a TV, watch the same generic countdown graphics, and hope the broadcast delay does not throw off ...
A reliable indicator of the air quality in offices, classrooms, or living rooms is the CO2 content. In fresh air, the concentration of carbon dioxide is around 400 ppm. This stands for “parts per ...
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