#include <Servo.h> // Add servo library

Servo servo1; // Create first servo variable
Servo servo2; // Create second servo variable

void setup() {
  servo1.attach(9);  // Control servo using pin 9
  servo2.attach(10); // Control servo using pin 10
}

void loop() {
  servo1.write(180); // Turn first servo to maximum position
  delay(500);        // Wait half a second
  servo2.write(0);   // Turn second servo to minimum position
  delay(500);        // Wait half a second
  servo1.write(0);   // Turn first servo to minimum position
  delay(500);        // Wait half a second
  servo2.write(180); // Turn second servo to maximum position
  delay(500);        // Wait half a second
}