int P1 = A5;

void setup() {
  // put your setup code here, to run once:
pinMode(P1,OUTPUT);
}

void loop() {
  // put your main code here, to run repeatedly:
  // ... [S]
digitalWrite(P1,HIGH);
delay(200);
digitalWrite(P1,LOW);
delay(200);
digitalWrite(P1,HIGH);
delay(200);
digitalWrite(P1,LOW);
delay(200);
digitalWrite(P1,HIGH);
delay(200);
digitalWrite(P1,LOW);
delay(500);

//__ __ __ [O]
digitalWrite(P1,HIGH);
delay(600);
digitalWrite(P1,LOW);
delay(200);
digitalWrite(P1,HIGH);
delay(600);
digitalWrite(P1,LOW);
delay(200);
digitalWrite(P1,HIGH);
delay(600);
digitalWrite(P1,LOW);
delay(500);


//... [S] 
digitalWrite(P1,HIGH);
delay(200);
digitalWrite(P1,LOW);
delay(200);
digitalWrite(P1,HIGH);
delay(200);
digitalWrite(P1,LOW);
delay(200);
digitalWrite(P1,HIGH);
delay(200);
digitalWrite(P1,LOW);
delay(3000);
}