void setup() {
  // put your setup code here, to run once:
  pinMode(7, INPUT);//digital output from ldr
  pinMode(A5, INPUT);//analog output from ldr
  pinMode(11, OUTPUT);//output to vary from led
  Serial.begin(9600);
}

void loop() {
  // put your main code here, to run repeatedly:
  Serial.println(analogRead(A5));//voltage value input into 10bit digital value
  Serial.println(analogRead(A5)/4);//10 bit value into 8 bit value for pwm use
  int value1 =analogRead(A5)/4;
  analogWrite(11,value1);//brightness increase and decrease
  delay(1000);

/*
  Serial.println(digitalRead(7));//reads 0 or 1 value according to brightness
  int value2 =digitalRead(7);
  digitalWrite(11,value2);//turn led on or off
  delay(1000);
*/
}