MisterBotBreak
Published

How to Use a Gas Sensor (MQ-2)

This project will show you how to use an MQ-2 gas sensor.

BeginnerProtip12 minutes13,010
How to Use a Gas Sensor (MQ-2)

Things used in this project

Hardware components

Arduino UNO
Arduino UNO
×1
Jumper wires (generic)
Jumper wires (generic)
×1
Grove - Gas Sensor(MQ2)
Seeed Studio Grove - Gas Sensor(MQ2)
×1
5 mm LED: Red
5 mm LED: Red
×1
5 mm LED: Green
5 mm LED: Green
×1

Software apps and online services

Arduino IDE
Arduino IDE

Story

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Code

Smoke detector

Arduino
void setup(){
  pinMode(13,1);
  pinMode(12,1);
  Serial.begin(115200);
}

void loop() {
  int value = analogRead(A0);

  Serial.println("Analogic Value coming from the sensor : ");  
  Serial.println(value);
  delay(100);

  if(value<400){
    digitalWrite(13,1);
  }
  else{
    digitalWrite(12,1);
  }
  delay(20);
}

Credits

MisterBotBreak

MisterBotBreak

48 projects • 149 followers
I love electronics and cats :D !

Comments

Related channels and tags
  • Arduino
  • Fire & Pyrotechnics
  • Seeed Studio