aerobotics

C2760392_MQ-2 gas sensor verification board

Overview

The gas-sensitive material used in the MQ-2 gas sensor is tin dioxide (SnO2) with low conductivity in clean air. When there is combustible gas in the environment where the sensor is located, the conductivity (impedance) of the sensor increases as the concentration of combustible gas in the air increases. A simple circuit can be used to convert changes in conductivity into an output signal corresponding to that gas concentration. This solution verification board uses a simple voltage comparison circuit to output a valid signal when the combustible gas concentration reaches a certain value.

Design Files

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Update:2025-05-12 16:02:49

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