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MQ sensor Housing
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Introduction
The MQ series of gas sensors use a small heater inside with an electro-chemical sensor. They are sensitive for a range of gasses and are used indoors at room temperature.
They can be calibrated more or less (see the section about "Load-resistor" and "Burn-in") but a know concentration of the measured gas or gasses is needed for that.
The output is an analog signal and can be read with an analog input of the Arduino.
Please take a look, Suscribe:
https://www.youtube.com/watch?v=_aPGoMSDus8
Github:
https://github.com/Microbitz/MQ-137
The MQ series of gas sensors use a small heater inside with an electro-chemical sensor. They are sensitive for a range of gasses and are used indoors at room temperature.
They can be calibrated more or less (see the section about "Load-resistor" and "Burn-in") but a know concentration of the measured gas or gasses is needed for that.
The output is an analog signal and can be read with an analog input of the Arduino.
Please take a look, Suscribe:
https://www.youtube.com/watch?v=_aPGoMSDus8
Github:
https://github.com/Microbitz/MQ-137
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