#include <Servo.h> 

Servo myservo;

void setup() 
{ 
  myservo.attach(9); //set up the servo as usual
  Serial.begin(9600); //for watching the speeds in the serial monitor
} 

void loop() {

// on this servo 1500 is stopped, above 1500 is clockwise, below is counter clockwise

     for (int i=1500; i >= 1300; i=i-20) //start from a stop and slowly increase to get the motor turning
     {
      myservo.writeMicroseconds(i); 
        Serial.print("Running motor at: ");
        Serial.println(i, DEC);
      delay(5000);
   } 
   
       for (int i=1300; i <= 1500; i=i+50)
     {
      myservo.writeMicroseconds(i); 
        Serial.print("Running motor at: ");
        Serial.println(i, DEC);
      delay(5000);
   } 
   
   delay(5000); //wait for five seconds and then spin it the other way, counting up again.
   
    for (int i=1500; i <= 1700; i=i+20)
     {
      myservo.writeMicroseconds(i); 
        Serial.print("Running motor at: ");
        Serial.println(i, DEC);
      delay(5000);
   } 

}