#include <Servo.h>

Servo servo;
//unsigned int angle = 10;
//int angle1 = 10;
void setup() {
   delay(2500); /////////  DELAY #1   this is a delay of 2.5 seconds BEFORE the servo begins
 
  servo.attach(6);
  servo.write(0);
  delay(500);

  // ROTATE SERVO ONCE "FAST" from 0 to 180 degrees

  for (int angle2 = 0; angle2 < 180; angle2++) 
  {
    servo.write(angle2);
    delay(10); //////////  DELAY #2
  }

  delay(1000);
  //Wait about 1 second then ROTATE SERVO ONCE SLOWLY from 180 back to 0 degrees...Want it to end up in its ORIGINAL 0 degree position

  for (int angle3 = 180; angle3 > 0; angle3--) 
  {
    servo.write(angle3);
     delay(100); ////////   DELAY #3
  }
}

void loop() {
  // Tried to write the sketch using the "void Loop" but was unsuccessful in having the servo cycle JUST ONCE
  // (...tried using While,  Break,  Exit ....and I couldn't get it to work. 
  // So just using the "void setup" I was able to get the servo to cycle just ONCE. 
}