#include <Servo.h>
Servo myServo1;
int button =8;
int data;
int state=1;
void setup(){
 //put your  code her
 myServo1.attach(10);
 pinMode(button, INPUT_PULLUP);
}
void loop(){
  //put your main code her, to run repea
  data = digitalRead(button);
  if(data==0){
    if(state==1){
      myServo1.write(90);
      delay(200);
      state=2;
    }
    else if(state ==2){
myServo1.write(180);
delay(200);
state =3;
    }
  else if(state ==3){
myServo1.write(0);
delay(200);
state =1;
  }