#include <Servo.h>
Servo myservo1;
Servo myservo2;
Servo myservo3;
void setup() {
myservo1.attach(9);
myservo2.attach(10);
myservo3.attach(11);
}
void loop() {
for(int i=0; i<=180; i++){
myservo1.write(i);
delay(500);
i=i+10;
myservo2.write(i);
delay(500);
i=i+10;
myservo3.write(i);
delay(500);
i=i+10;
}
}