#define PIR 12

int LDRPin = A0;
int pirState = 0;
int LDRValue = 0;

void setup() {
  pinMode(PIR, INPUT);
  pinMode(7, OUTPUT);
  pinMode(8, OUTPUT);
}

void loop() {
  LDRValue = analogRead(LDRPin);
  pirState = digitalRead(PIR);

  if (pirState == HIGH) {
    digitalWrite(7, HIGH);
    delay(100);
  }
  else if (pirState == LOW) {
    digitalWrite(7, LOW);
    delay(100);
  }

  if (LDRValue < 437) {
    digitalWrite(8, LOW);
    delay(100);
  }
  else if (LDRValue > 511) {
    digitalWrite(8, HIGH);
    delay(100);
  }
  else {
    digitalWrite(8, HIGH);
  }
}