/*
 Controlling a servo position using a potentiometer (variable resistor)
 by Michal Rinott <http://people.interaction-ivrea.it/m.rinott>

 modified on 8 Nov 2013
 by Scott Fitzgerald
 http://www.arduino.cc/en/Tutorial/Knob
*/

#include <Servo.h>

Servo myservo;  // create servo object to control a servo
int analogPin = A0;
int val = 0;    // variable to read the value from the analog pin
int pos = 0;


void setup() {
  Serial.begin(9600);
  myservo.attach(9);  // attaches the servo on pin 9 to the servo object
  myservo.write(0); 
}

void loop() {

  int servo_state = myservo.read();
  val = analogRead(analogPin);    
  
  if (myservo.read() == 0 and val == 1023) {
    Serial.println("sale");
    Serial.println(myservo.read());
    Serial.println(val);
    for (int i = 0; i <= 180; i++) {
      myservo.write(i);                  // sets the servo position according to the scaled value
      delay(15);                           // waits for the servo to get there
      
    }
    

  }
  else if (myservo.read() == 180 and val < 1023) {
  Serial.println("scende");
  Serial.println(myservo.read());
  Serial.println(val);
    for (int i = 180; i >= 0; i--) {
      myservo.write(i);                  // sets the servo position according to the scaled value
      delay(15);                           // waits for the servo to get there
      
    }

  }

  
}