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Carbon monoxide (CO) is a very dangerous gas which is odorless, colorless, and tasteless, so it cannot be smelt, seen, or tasted. A person really would have no idea that they are breathing in CO besides the fact that they would start to feel horrible.
This carrier board is designed to work with any of the MQ-series gas sensors, simplifying the interface from 6 to 3 pins—ground, power and analog voltage output—that are broken out with a 0.1" spacing, making the board compatible with 0.1" headers and standard breadboards and perfboards.
Este sensor serve para testar a qualidade do ar de interiores. Os principais gases detectados são monoxido de carbono, álcool, acetona, formaldeído entre outros. É um sensor compatível com alimentações de 3.3V e 5V.