#include <Servo.h> // Servo Library
Servo servo_test; // initialise a servo object for the connected servo
int angle = 0;
int potentio = A0; 

void setup() {
  servo_test.attach(9); //attach the signal pin of servo to pin9 of arduino
}

void loop() {
  angle = analogRead(potentio); 
  angle = map(angle, 0, 1023, 0, 179); // scaling the potentiometer value to angle value for servo between 0 and 180
  servo_test.write(angle); //command to rotate the servo to the specified angle
  delay(5);

}