#include <Servo.h>

Servo myservo;

int servo = 5;
String command;

void setup() {
  // put your setup code here, to run once:
  Serial.begin(9600);
  pinMode(servo, OUTPUT);
  myservo.attach(9);
  Serial.println("Command:");
}

void loop() {
  // put your main code here, to run repeatedly:
  if(Serial.available()>0){
    command = Serial.readString();
    command.trim();
    Serial.println("Command:");
  };

  if(command == "on"){
    myservo.write(0);
    delay(1000);
    myservo.write(180);
    delay(1000);
  }

  if(command == "off"){
    myservo.write(0);
  }


}