// C++ code
//

int microfono = A0; //define pin A1 (analog pin)
int bocina = 3; //define pin 2 (digital pin)
int ruido; //create variable for storing readings


//void setup is for configurations on start up
void setup() { 
    Serial.begin(9600); //initialize serial communication
    pinMode(bocina, OUTPUT); //define ledPin as an output
}

void loop() {
    ruido = analogRead(microfono); // do a sensor reading
    
    Serial.print("Nivel de ruido es: "); //print a message to the serial monitor
    Serial.println(ruido); //print the value to the serial monitor
    
    //check if sensorValue is below 200
    if(ruido >= 800){
    	analogWrite(bocina, ruido*0.8);
  	}
  	if(ruido < 800) {
      if( ruido > 400 ) { 
        analogWrite(bocina, ruido); //if it is, turn on the LED on pin 2.
      }
       else{
        analogWrite(bocina, ruido*1.2);
      }
    }
}