lesson1-sos.ino

void setup() {
  pinMode(10,OUTPUT);
}

void loop() {
  //S
  ti();
  ti();
  ti();
  
  //O
  ta();
  ta();
  ta();
  
  //S
  ti();
  ti();
  ti();
  delay(3000);
}

void ta() {
  digitalWrite(10,HIGH);
  delay(1000);
  digitalWrite(10,LOW);
  delay(500);
}

void ti() {
  digitalWrite(10,HIGH);
  delay(500);
  digitalWrite(10,LOW);
  delay(1000);
}