int a=0;
int b=0;
int led1=15;
int led2=2;
void setup() {
Serial.begin(115200);
pinMode(led1, OUTPUT);
pinMode(led2, OUTPUT);
}
void loop() {
 for (a=0; a<4; a++){
 Serial.print("esta es la vuelta"); 
 Serial.println(a);
 digitalWrite(15, HIGH);
 delay(1000);
 digitalWrite(15, LOW);
 delay(1000);
}
for(b=0; b<=2; b++){
digitalWrite(2, HIGH); 
delay(1000);
digitalWrite(2, LOW);
delay(1000); 
}
}