#include <Servo.h>
Servo svrmotor;
int angle=0;

void setup() {
  // put your setup code here, to run once:
svrmotor.attach(9);
svrmotor.write(0);
Serial.begin(9600);
}

void loop() {
  // put your main code here, to run repeatedly:
  
while (angle<180){
svrmotor.write(angle+15);
delay(200); 
angle+=15;
Serial.println(angle); 
delay(300); 
}

while (angle>0){
svrmotor.write(angle-15);
delay(200);
angle-=15;
Serial.println(angle);
delay(300);  
}

}