#include <Servo.h>
#define LDR_PIN 2

Servo myservo;

int pos = 75;
int LDR1 = A0;
int LDR2 = A1;
int d = 50;

void setup() {
  myservo.attach(5);
  pinMode(LDR1, INPUT);
  pinMode(LDR2, INPUT);
}

void loop() {
  int analogValue1 = analogRead(LDR1);
  int analogValue2 = analogRead(LDR2);

  if (analogValue1 > analogValue2) {
    pos = pos+1;
    delay(d);
  }
  if (analogValue1 < analogValue2) {
    pos = pos-1;
    delay(d);
  }
  if (pos < 0) {
    pos = 0;
    delay(d);
  }
  if (pos > 180) {
    pos = 180;
    delay(d);
  }
  myservo.write(pos);
  delay(d);
}