//SOS for LED, when pressed by Button:
int ledPin = 8;
int switchPin= 3;
int val=0;
int s = 300;
int o = 800;

void setup() {
  pinMode(ledPin, OUTPUT);
  pinMode (switchPin, INPUT);
}

void character(int speed) {
  digitalWrite(ledPin, HIGH);
  delay(speed);
  digitalWrite(ledPin, LOW);
  delay(300);
}

void loop() { 
  val = digitalRead(switchPin);
  if (val==HIGH) {
    digitalWrite(ledPin, LOW);
    for (int x = 1; x <= 3; x++) {
    character(s);
  }
  delay(100);
  for (int x = 1; x <= 3; x++) {
    character(o);
  }
  delay(100);
  for (int x = 1; x <= 3; x++) {
    character(s);
  }
  delay(2000);
} else{
  digitalWrite(ledPin,LOW);
}
}