#include <Servo.h>

Servo servo1;
Servo servo2;


void setup() {
  servo1.attach(3);
  servo2.attach(5);

}

void loop() {
  servo1.write(0);
  servo2.write(180);

  delay(2000);

  for (int s1=0; s1<=180; s1++){
    servo1.write(s1);
    delay(20);
  }

  for (int s2=180; s2>=0; s2--){
    servo2.write(s2);
    delay(10);
  }

}