How to use gas sensors with Arduino || Arduino tutorial



In this tutorial I’m demonstrating how to use MQ-2/MQ-5 gas sensors with Arduino. These little devices may be used in gas leakage detectors.
The MQ-2 is suitable for detecting LPG, i-butane, propane, methane, hydrogen and even smoke.
The MQ-5 detects LPG, natural gas and town gas.

Many other gas sensors can be used in exactly the same way, e.g. MQ-3, MQ-6 or MQ-135. Just read the datasheet, use the appropriate load resistor and experiment with the “sensorValue” in my Arduino code.

Project page – you can download Arduino code and see schematic used in this video here:

http://ElectronFun.com/project_2.php

Datasheets:
MQ-2: https://www.seeedstudio.com/depot/datasheet/MQ-2.pdf
MQ-5: https://www.seeedstudio.com/depot/datasheet/MQ-5.pdf

See how to calibrate an MQ-2 gas sensor:

See all my Arduino tutorials here:

https://www.youtube.com/playlist?list…

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Video, edit, voice by Chris Lorkowski

Music composed and performed by Bensound – Happiness

http://www.bensound.com

Sound effects recorded by Mark DiAngelo – Blop

http://soundbible.com


Post time: Sep-03-2017
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