#include <Servo.h>
int servoPin = 9;
int servoPos;
Servo servo;

int lightVal;
int lightPin = A4;
int dur = 250;


void setup() {
  // put your setup code here, to run once:
  Serial.begin(9600);
  servo.attach(servoPin);
  pinMode(lightPin, INPUT);
  pinMode(servoPin, OUTPUT);

}

void loop() {
  lightVal = analogRead(lightPin);
  Serial.println(dur);
  delay(dur);
  servoPos = (-16. / 63.) * lightVal + 16. * 780. / 63.;
  servo.write(servoPos);
}