//MEDINA
int ledPin = 13;
void ledON(int on){
  digitalWrite(ledPin, HIGH);
  delay (on);
}
void ledOFF(int off){
  digitalWrite(ledPin, LOW);
  delay (off);
}

void morse_S()
{
  ledON (500); ledOFF (250); ledON (500); ledOFF (250); ledON (500); ledOFF (250);
  delay (1000);
}
void morse_O()
{
  ledON (1500); ledOFF (250); ledON (1500); ledOFF (250); ledON (1500); ledOFF (250);
  delay (1000);
}

void setup() {
  pinMode (ledPin, OUTPUT);
}
void loop() {
  morse_S();
  morse_O();
  morse_S();
  delay (2000);
}