#include <Servo.h>

int servoPin = 10;
int presPin = A0;
Servo servo;

int servoPos = 0;
int bitPresValue;
float voltage;


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

void loop() {
  // put your main code here, to run repeatedly:
  bitPresValue = analogRead(presPin);
  voltage = (5./1023.) * bitPresValue; // 5 low light 0 bright
  
  servo.write(36 * voltage);

  delay(1000);
  
  //servo.write(servoPos);

}