How to Connect MQ2 Gas Sensor to Arduino

How to Connect MQ2 Gas Sensor to Arduino © CC BY-NC-SA

MQ2 Sensor is a gas module and it is suitable to detect Hydrogen, LPG, Smoke, CO, and Alcohol. It has high sensitivity and fast response.

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Components and supplies

MQ 2 Gas Sensor
×1
16x2 I2C LCD Display
×1
A000066 iso both
Arduino UNO & Genuino UNO
×1
Jumper Wires
×1

Apps and online services

Ide web
Arduino IDE

About this project

MQ2 Sensor is a gas module and it is suitable to detect Hydrogen, LPG, Smoke, CO, and Alcohol. It has high sensitivity and fast response time to measure and take the data. Sensitivity can be adjusted by potentiometer behind it:

Circuit

MQ2 Connections with Arduino:

MQ2 Connections with Arduino and IIC LCD Display:

Connections

Arduino              MQ2

  • AO                       A0
  • 5V                     VCC
  • GND                   GND

Code

Watch Video

For more projects and tutorials visit our website.

Code

Arduino
https://create.arduino.cc/editor/electronicsprojectshub/1b084772-3144-4952-bc51-f2b63b727e63/preview?embed

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Author

Junezriyaz
Junez Riyaz
  • 2 projects
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Published on

February 1, 2018
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