Gas Detection using MQ6 Sensor | Just Arduino Things | TW TechieTube
Gas Detection using MQ6 Sensor
Just Arduino Things | TW TechieTube
Detect a Gas Leak near surroundings and Make an LED Glow/Buzzer Alarm system.
Principle:
The MQ-6 can detect gas concentrations anywhere from 200 to 10000ppm. This sensor has high sensitivity and a fast response time. The sensor's output is an analogue resistance. The drive circuit is very simple; all you need to do is power the heater coil with 5V, add a load resistance, and connect the output to an ADC.
Components Required:
- Arduino UNO (1)
- MQ6 Sensor (1)
- Breadboard (As per Requirement)
- Jumper Cables (As per Requirement)
- Arduino Bus Cable (1)
Construction:
A Simple project to detect Gas leak using the MQ6 Sensor.
Now connect the Sensors pins with the order given,
Vcc - Arduino 5v/3.3v Pin
Gnd - Arduino Gnd Pin
AO - Any ANlog Pins from A0 to A5
(OR)
DO - Any Digital Pins except D1/D2 on UNO.
Incl. an LED in D13 and Gnd for external value.
As explained in the Video, the Code is written as Follows.
Code:
//ARDUINO MQ6 Gas Sensor
int MQ6A=A0;
int MQ6D=3;
int BUZZER = 13;
int ValueA, ValueD;
void setup()
{ pinMode(A0,INPUT);
pinMode(3, INPUT);
Serial.begin(9600);
}
void loop()
{ ValueA=analogRead(A0);
Serial.println(ValueA);
ValueD = digitalRead(3);
Serial.println(ValueD);
if (ValueD == 1)
{ Serial.println("LPG detected...");
digitalWrite(13, HIGH);
}
else
{ Serial.println("No LPG detected.");
digitalWrite(13, LOW);
}
delay(1000);
}
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