Testing/calibrating servo's with the Arduino - asks for a position and moves the servo there.

serial_read_servo.ino

#include <Servo.h> 
 
Servo myservo; 

void setup() {
  myservo.attach(3);
  Serial.begin(9600);
  myservo.write(90);
}

void loop() {
  Serial.print("Enter position:");
  while (Serial.available() == 0);// wait for serial
  int pos = Serial.parseInt();
  Serial.println(pos, 10);
  myservo.write(pos); 
}