MQ-2 Flammable Gas Sensor with Arduino | Sheekar Banerjee

1//Coded and tested by :
2// Sheekar Banejee, AI-ML-IOT Solution Engineer  and Researcher
3
4int smokeA0 = A0;
5// Your threshold value
6int sensorThres  = 700;
7
8void setup() {
9  pinMode(smokeA0, INPUT);
10  Serial.begin(9600);  //Streaming 9600 bits of Sensor Data per Second
11}
12
13void loop() {
14  int  analogSensor = analogRead(smokeA0);
15
16  Serial.println("Sensor Value: ");
17  Serial.println(analogSensor);
18  // Checks if it has reached the threshold value
19  if (analogSensor > sensorThres)
20  {
21    Serial.println("Alert! Smoke Detected!");
22  }
23  else
24  {
25    Serial.println("Normal...");
26  }
27  delay(3000);
28}