Project #28 – Sensors – MQ-135 Gas Sensor – Mk22

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MQ-135 Gas Sensor

The gas sensing material used in the MQ135 gas sensor is tin dioxide (SnO2), which has low conductivity in clean air. When there is polluted gas in the environment where the sensor is located, the conductivity of the sensor increases with the increase of the concentration of polluted gas in the air. The MQ135 gas sensor has a high sensitivity to ammonia, sulfide, and benzene-based vapors, and is ideal for monitoring smoke and other harmful gases. This sensor can detect a variety of harmful gases and is a low-cost sensor suitable for a variety of applications.

DL2512Mk05

1 x Arduino UNO R4 WiFi
1 x Adafruit SHARP Memory Display Breakout - 1.3" 168x144 Monochrome
1 x  MQ-135 Gas Sensor
1 x USB Battery Pack
1 x USB 3.0 to Type-C Cable

DL2512Mk05p

DL2512Mk05p.ino
getDisplay.ino
getMQ135.ino
setup.ino

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