serialEvent

#define LED PC13
#define POTENSIO PA0

String stringBuilder    = "";
boolean stringCompleted = false;
int tempVal = 1;
int timeOut = 0;

int delayVal(){
    int v;
    v = analogRead(POTENSIO);
    //v *= 100;
    return v;
}

void blinkingLED(int wait){
    digitalWrite(LED,HIGH);
    delay(wait);
    digitalWrite(LED,LOW);
    delay(wait);
}

void turnOFFLED(){
    digitalWrite(LED,HIGH);
    delay(3000);
}

void serialEvent(){
    while(Serial.available()){
        char inChar = (char)Serial.read();
        stringBuilder += inChar;
        if(inChar == '#'){
            stringCompleted = true;
        }
    }
}

void setup(){
    pinMode(LED,OUTPUT);
    pinMode(POTENSIO,INPUT);
    Serial.begin(9600);
}

void loop(){
    serialEvent();
    if (stringCompleted) {
        Serial.println(stringBuilder);
        if(stringBuilder == "TURN OFF#"){
            turnOFFLED();
        }
        // clear the string:
        stringBuilder = "";
        stringCompleted = false;
    };

    timeOut = delayVal();
    if(!(timeOut == tempVal)){
        Serial.print("\nInput from Potensio =");
        Serial.print(timeOut);
    };
    blinkingLED(timeOut);
    tempVal = timeOut;
}