int laser = 8;

void setup() {

  // put your setup code here, to run once:

pinMode(laser, OUTPUT);

}

void loop() {

  // put your main code here, to run repeatedly:

lightS(1000); lightS(1000); lightS(1000); //morse s

delay(1500);

lightO(3000); lightO(3000); lightO(3000); //morse o

delay(1500);

lightS(1000); lightS(1000); lightS(1000); //morse s

delay(5000);

}

void lightS(int duration){

digitalWrite(laser,HIGH);

delay(duration);

digitalWrite(laser,LOW);

delay(duration); 

}

void lightO(int duration){

digitalWrite(laser,HIGH);

delay(duration);

digitalWrite(laser,LOW);

delay(1000); 

}