#include <Arduino.h>
#include <Servo.h>

Servo miniServo;
int mini = 0;

void setup() {
  Serial.begin(9600);
  miniServo.attach(4);
}

void loop() {
  if (Serial.available() > 0)
  {
    Serial.println("value now is: " +mini);
    Serial.println("enter number between 0-180: ");
    mini = Serial.read();
    delay(250);
    miniServo.write(mini);
  }

}