#include <Servo.h>

Servo firstServo;

int pot1Pin = A0;
int pos = 0;
int angle = 0;
int pot1value = 0; // This is the 10bit positive

int led[] = {10,11,2,13};

void setup(){

    firstServo.attach(9);
    pinMode(pot1Pin, INPUT);
    for(int i=0; i < 4; i++){
    pinMode(led[i], OUTPUT);

    }
Serial.begin(9600);
}


void loop(){

   pot1value = analogRead(A0);
   pos = potToServo(pot1value);
   angle = potToDegrees(pot1value);

   firstServo.write(pos);

   Serial.println(angle);
       Serial.println(pot1value);

   if(angle >= 0 && angle < 15){
     digitalWrite(led[0], HIGH);
     digitalWrite(led[1], LOW);
     digitalWrite(led[2], LOW);
     digitalWrite(led[3], LOW);
     }
   if(angle >= 15 && angle < 30){
     digitalWrite(led[0], LOW);
     digitalWrite(led[1], HIGH);
     digitalWrite(led[2], LOW);
     digitalWrite(led[3], LOW);
     }
   if(angle >= 30 && angle < 45){
     digitalWrite(led[0], LOW);
     digitalWrite(led[1], LOW);
     digitalWrite(led[2], HIGH);
     digitalWrite(led[3], LOW);
     }
   if(angle >= 45 && angle < 60){
     digitalWrite(led[0], LOW);
     digitalWrite(led[1], LOW);
     digitalWrite(led[2], LOW);
     digitalWrite(led[3], HIGH);
     }

}

int potToServo(int potvalue){

    potvalue = round(potvalue * 0.24926686);


  return potvalue;
  }
 int potToDegrees(int potvalue){
  int output = 0;

    output = round(potvalue * 0.058651026);


 return output;
 }