#define MQ2pin 26

float sensorValue;  //variable to store sensor value

void setup() {
	Serial.begin(9600); // sets the serial port to 9600
}

void loop() {
	sensorValue = analogRead(MQ2pin); // read analog input pin 0

	Serial.print("Sensor Value: ");
	Serial.println(sensorValue);
	
	delay(1000); // wait 2s for next reading
}