#include <Servo.h>
Servo servo1;
Servo servo2;
Servo servo3;

void setup(){
  servo1.attach(7);
  servo2.attach(8);
  servo3.attach(9);
}

void loop(){
//lengan
  servo1.write(90);
  delay(1000);
  servo1.write(0);
  delay(1000);
  servo1.write(90);
  delay(1000);
  servo1.write(180);
  delay(1000);
  servo1.write(90);
  delay(1000);

//pergelangan tangan
  servo2.write(90);
  delay(1000);
  servo2.write(180);
  delay(1000);
  servo2.write(90);
  delay(1000);
  servo2.write(45);
  delay(1000);
  servo2.write(90);
  delay(1000);

//siku
  servo3.write(90);
  delay(1000);
  servo3.write(0);
  delay(1000);
  servo3.write(90);
  delay(1000);
}