#include <Servo.h>
Servo myservo;
int pos =0; 
int D8= 8;
//4122ณัฐธิดา
void setup() {
  // put your setup code here, to run once:
  pinMode(D8, OUTPUT);
myservo.attach(9);
}

void loop() {
  // put your main code here, to run repeatedly:
for(pos=0; pos<=180; pos += 1){
 myservo.write(pos);
 digitalWrite(D8, HIGH);
 delay(41);//
}
for(pos=180; pos>=0; pos -= 1){
  myservo.write(pos);
  digitalWrite(D8, LOW);
  delay(22);
 }
}