#include <Servo.h>
#define potpin A0
#define LED 13

Servo myServo;
unsigned long Ttime = 0;
String cmd;
int syncValue;
bool shouldSync = false;
bool blink = false;

void setup () {
  myServo.attach(9);
  Serial.begin(9600);
  pinMode (LED, OUTPUT);
  pinMode (potpin, INPUT);
  Ttime = millis();
}

void loop()  {
  // komut isleme
  if (Serial.available() == true) {
    cmd = Serial.readString();
    cmd.trim();
    if (cmd == "RIGHT")  {
      shouldSync = false;
      myServo.write (45);
    }
    if (cmd == "LEFT")  {
      shouldSync = false;
      myServo.write (135);
    }
    if (cmd == "SYNC")  {
      shouldSync = true;
    }
    if (cmd == "BLINK")  {
      blink = true;
      Ttime = millis();
    }
  }

  if(blink){
    digitalWrite(LED, HIGH);
    delay(200);
    digitalWrite(LED, LOW);
    delay(200);
  }

  if(millis() - Ttime > 5000){
    blink = false;
  }

  // islenmis degerlerle bi seyler yapacagiz
  if(shouldSync){
    int potValue;
    potValue = analogRead(potpin) ;
    syncValue = map(potValue, 0, 1023, 45, 135);
    myServo.write(syncValue);
  }

}