alcohol_sensor.ino

const int AOUTpin = 0;//the AOUT pin of the alcohol sensor goes into analog pin A0 of the arduino
const int DOUTpin = 8;//the DOUT pin of the alcohol sensor goes into digital pin D8 of the arduino
const int ledPin=13;//the anode of the LED connects to digital pin D13 of the arduino

int limit;
int value;

void setup() {
  Serial.begin(115200);//sets the baud rate
  pinMode(DOUTpin, INPUT);//sets the pin as an input to the arduino
  pinMode(ledPin, OUTPUT);//sets the pin as an output of the arduino
}

void loop() {
  value = analogRead(AOUTpin);//reads the analaog value from the alcohol sensor's AOUT pin
  limit = digitalRead(DOUTpin);//reads the digital value from the alcohol sensor's DOUT pin
  Serial.print("Alcohol value: ");
  Serial.println(value);//prints the alcohol value
  delay(100);
}