MQ3 Alcohol Sensor with Arduino | Sheekar Banerjee

1const int AOUTpin=0;//the AOUT pin of the alcohol sensor goes into analog  pin A0 of the arduino
2const int DOUTpin=8;//the DOUT pin of the alcohol sensor  goes into digital pin D8 of the arduino
3
4int limit;
5int value;
6
7void  setup() {
8Serial.begin(115200);//sets the baud rate
9pinMode(DOUTpin, INPUT);//sets  the pin as an input to the arduino
10pinMode(ledPin, OUTPUT);//sets the pin as  an output of the arduino
11}
12
13void loop()
14{
15value= analogRead(AOUTpin);//reads  the analaog value from the alcohol sensor's AOUT pin
16limit= digitalRead(DOUTpin);//reads  the digital value from the alcohol sensor's DOUT pin
17Serial.print("Alcohol value:  ");
18Serial.println(value);//prints the alcohol value
19Serial.print("Limit:  ");
20Serial.print(limit);//prints the limit reached as either LOW or HIGH (above  or underneath)
21delay(500);
22}