// Controlling a servo position using a potentiometer (variable resistor) 
// by Michal Rinott 
// Modified by Khazar, 11/2008

#include  <Servo.h> // Include the Servo Library.
                   // Libraries are kept in the "hardware/libraries" subdirector of the
                   // Arduino application directory.

Servo myservo;     // Create servo object to control a servo 

int potpin = 0;    // Analog pin used to connect the potentiometer
int val;           // Variable to read the value from the analog pin 
int servopin = 9;  // Digital pin used to connect to the servo's control pin

void setup() 
{ 
  Serial.begin(9600);
  myservo.attach(servopin);  // Attaches the servo on servopin to the servo object 
} 

void loop() 
{ 
  val = analogRead(potpin);            // Reads the value of the potentiometer (value between 0 and 1023) 
  val = map(val, 0, 1023, 0, 179);     // Scale "val" to use it with the servo (value between 0 and 180)
                                       // (See reference on "map" at http://arduino.cc/en/Reference/Map)
                                       //  map(value, fromLow, fromHigh, toLow, toHigh);
  myservo.write(val);                  // Sets the servo position according to the scaled value 
                                       // the Servo library. It goes from 0 to 180 and corresponds to the
                                       // degree of rotation.
  Serial.println(val);                   // Send the value out thru the serial port.
  delay(15);                           // Waits for the servo to get there.
}