// Sweep
// by BARRAGAN <http://barraganstudio.com> 
// This example code is in the public domain.


#include <Servo.h> 
 
Servo myservo;  // create servo object to control a servo 
                // a maximum of eight servo objects can be created 
 
int pos = 0;    // variable to store the servo position 
 
void setup() 
{ 
  Serial.begin(9600);
  pinMode(4, INPUT);
  myservo.attach(9);  // attaches the servo on pin 9 to the servo object
  myservo.write(10);              // tell servo to go to position in variable 'pos' 
  delay(15);                       // waits 15ms for the servo to reach the position  

} 
 
 
void loop() 
{ 
 //Serial.println(digitalRead(4)); 
  if (!digitalRead(4))
  {
    Serial.println(digitalRead(4));
    myservo.attach(9);
    for(pos = 120; pos>=10; pos-=1)     // goes from 180 degrees to 0 degrees 
    {                                
      myservo.write(pos);              // tell servo to go to position in variable 'pos' 
      delay(15);                       // waits 15ms for the servo to reach the position 
    }
    myservo.detach(); 
    delay(1000);
    while (!digitalRead(4));
  }
  else
  {
    Serial.println(digitalRead(4));
    myservo.attach(9);
    delay(100);
    for(pos = 10; pos < 120; pos += 1)  // goes from 0 degrees to 180 degrees 
    {                                  // in steps of 1 degree 
      myservo.write(pos);              // tell servo to go to position in variable 'pos' 
      delay(15);                       // waits 15ms for the servo to reach the position 
    } 
    myservo.detach(); 
    delay(5000);
    while (digitalRead(4));
  }
}