Difference between revisions of "Methane Gas Sensor - MQ-4"
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==Document== | ==Document== | ||
Revision as of 07:13, 10 May 2012
Contents
Introduction
MQ-4 gas sensor modules are used in gas leakage detecting equipments in family and industry, are suitable for detecting of CH4,Natural gas.LNG, avoid the noise of alcohol and cooking fumes and cigarette smoke.
Features
- High sensitivity to CH4，Natural gas
- Small sensitivity to alcohol, smoke
- Fast response
- Stable and long life
- Simple drive circuit
Specification
Document
[MQ-2 datasheet]
Usage
VCC - 5V GND - GND S - Analog pin0
Example code
int sensorValue;
void setup()
{
Serial.begin(9600); // sets the serial port to 9600
}
void loop()
{
sensorValue = analogRead(0); // read analog input pin 0
Serial.println(sensorValue, DEC); // prints the value read
delay(100); // wait 100ms for next reading
}
How to buy it
Click here to buy [Gas Sensor - MQ-2]
