Analog_Gas_Sensor_SKU_SEN0127 - jimaobian/DFRobotWiki GitHub Wiki
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
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
More question and cool idea, visit DFRobot Forum
More
- Version history: Analog Gas Sensor(MQ2) V1
buy from dfrobot store or dfrobot distributor list
category: Product Manual category: SEN Series category: Sensor