int dot =100; 

int dash = 500;

int ledPin =7;

int finalDelay = 1500; 

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

}

void loop() {
  // put your main code here, to run repeatedly:
digitalWrite(ledPin, HIGH);
delay(dot);
digitalWrite(ledPin, LOW);
delay(dot);

digitalWrite(ledPin, HIGH);
delay(dot);
digitalWrite(ledPin, LOW);
delay(dot);

digitalWrite(ledPin, HIGH);
delay(dot);
digitalWrite(ledPin, LOW);
delay(dot);

digitalWrite(ledPin, HIGH);
delay(dot);
digitalWrite(ledPin, LOW);
delay(dot);


delay(dash);
}