Ks0040 keyestudio Analog Gas Sensor

Introduction

This analog gas sensor - MQ2 is used in gas leakage detecting equipment in consumer electronics and industrial markets. This sensor is suitable for detecting LPG, I-butane, propane, methane, alcohol, Hydrogen and smoke. It has high sensitivity and quick response. In addition, the sensitivity can be adjusted by the potentiometer. 

Specification

• Power Supply: 5V
• Interface Type: Analog
• Wide detecting scope
• Quick response and High sensitivity
• Simple drive circuit
• Stable and long lifespan
• Size: 49.7*20mm
• Weight: 8g

Connection Diagram

Sample Code

///Arduino Sample Code
void setup()
{
  Serial.begin(9600); //Set serial baud rate to 9600 bps
}
void loop()
{
int val;
val=analogRead(0);//Read Gas value from analog 0
Serial.println(val,DEC);//Print the value to serial port
delay(100);
}

Video

http://www.keyestudio.com/wp/2016/05/ks0040-keyestudio-mq2-analog-gas-sensor-module/