How to Code Arduino and MQ-2 Gas Sensor?
MQ — 2 is one of the Gas Sensors, is capable of sensing the value of LPG, Propane, Hydrogen, CO, Alcohol, and Methane.
It is one of the most used sensors in the Arduino project for sensing data from these gas.
So in this project, we are going to use the MQ2 Gas Sensor to fetch the analog value from pin A0.
Pin Diagram of MQ-2 Gas Sensor
3 Steps then see the Magic
Step 1: Setup
This first step if you have not set up Arduino IDE then install and setup. Follow the link to set up.
Step 2: Code
Setup 3: Wiring
To develop this project you should need some components, the required components are:
- Arduino Uno
- MQ2
- Buzzer
- LEDs
- Jumper Wire
- Breadboard
Conclusion
MQ2 Gas Sensor is capable of sensing gases like LPG, Propane, Hydrogen, CO, Alcohol, and Methane. But in this project, we are testing the LPG from analog Pin A0.
