BlinkSemaforo

int led = 8;
int led2 = 9;
int led3 = 10;

String inString = "";    // string to hold input


void setup() {
  // put your setup code here, to run once:
  Serial.begin(9600);
  Serial.println("\n\nString toInt():");
  pinMode(led,OUTPUT);
  pinMode(led2,OUTPUT);
  pinMode(led3,OUTPUT);
}

void loop() {
int inChar = Serial.read();
  if (isDigit(inChar)) {
     inString += (char)inChar;
  }
  if (inChar == '\n'){
    int l;
    l = inString.toInt();
    while (l >= 10){
     digitalWrite(led,HIGH);
     delay(l);
     digitalWrite(led,LOW);
    // delay(l);

     digitalWrite(led2,HIGH);
     delay(l);
     digitalWrite(led2,LOW);
   //  delay(l);

     digitalWrite(led3,HIGH);
     delay(l);
     digitalWrite(led3,LOW);
 //delay(l);
    }
  }





}