To sense CO2 we used an MG811 Figaro Sensor and an amplifying circuit to read serial values into the Arduino. The sensor has 6 pins, 2 As, 2Bs, and 2Hs. The H pins are in the middle of the sensor and there is a heating coil that is inside of the sensor and runs between the two pins. One side of the H is connected to 6v the other side to Ground. The 2 A pins are internally connected as are the two B pins. This is an image of the circuit done in the style of "Open Solar Circuits".
hola me preguntaba si tendrias el codigo del arduino puesto que estoy utilizando lo mismo para hacer una sonda.
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Hello , I have one asnwer, Have you got a code by Arduino ?? because I am doing a probe. Thanks you!
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