#include <Servo.h>


#define CLK 9
#define DT 8
#define SW 7

int ROTPOS = 0;
int CURRENT = 0;
int BEFORE = 0;
int LR = 0;
int LEFT = 1;
int RIGHT = -1;


Servo myservo;

void setup() {

Serial.begin(9600);
pinMode(CLK,INPUT);
pinMode(DT,INPUT);

pinMode(SW,INPUT);

BEFORE = digitalRead(CLK);


 myservo.attach(13);

}

void loop() {
  CURRENT = digitalRead(CLK);
  if(CURRENT != BEFORE){
    if(digitalRead(DT) != CURRENT){
     if(ROTPOS<180 && ROTPOS >=0)ROTPOS++;
      LR = LEFT;
    }
    else{
      if(ROTPOS<=180 && ROTPOS >0)ROTPOS--;
      LR = RIGHT;
   }

   if(LR == LEFT){
    Serial.print("RIGHT  ");
   }

   if(LR == RIGHT){
    Serial.print("LEFT  ");
   }
    myservo.write(ROTPOS);
    delay(15);

    Serial.println(ROTPOS);

  }

  if(digitalRead(SW) == LOW){
    Serial.println("klik");
  }
      BEFORE = CURRENT;
      delay(100);
}