Analog_Gas_Sensor_SKU_SEN0127-DFRobot

Analog Gas Sensor(MQ2) SKU：SEN0127

Introduction

The analog gas sensor - MQ2 is used in gas leakage detecting equipments in consumer and industry markets, this sensor is suitable for detecting LPG, i-butane, propane, methane, alcohol, hydrogen, smoke. It has a high sensitivity and fast response time. And the sensitivity can be adjusted by the potentiometer.

Specification

Power supply needs: 5V
Interface type: Analog
Wide detecting scope
Fast response and High sensitivity
Simple drive circuit
Stable and long life
Size: 36.4x26.6mm

Tutorial

Connecting Diagram

Analog Gas Sensor

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);
}

Result

Trouble shooting

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