#include <Servo.h> // Include Servo library

Servo myServo; // Create a servo objexct to control the servo

int servoPin = 9; // Servo motor is connected to pin 9
int potPin = A0; // potentiometer is connected to A0

int potentiometerValue; // variable to store potentiometer reading
int servoPosition; // This will store an angle for the servo arm

void setup() {

  myServo.attach(servoPin); // Attach the servo motor to pin 9
  Serial.begin(9600);
}

void loop() {

  potentiometerValue = analogRead(potPin); 
  // read the value from the potentiometer - range (0-1023)
  
  servoPosition = map(potentiometerValue, 0, 1023, 0, 180); 
  // changes the 0-1023 reading to a 0-180 degree scale

  myServo.write(servoPosition); 
  // move servo arm to the calculated position (angle) 

  Serial.print(potentiometerValue);
  Serial.print("        ");
  Serial.println(servoPosition);
  delay(100);

}