// Define analog pin for LDR
#define ldrPin A0

// Define pins for LED array
#define ledPin1 8
#define ledPin2 9
#define ledPin3 10

void setup() {
  // Set pins for LED array as output
  pinMode(ledPin1, OUTPUT);
  pinMode(ledPin2, OUTPUT);
  pinMode(ledPin3, OUTPUT);
}

void loop() {
  // Read LDR value
  int ldrValue = analogRead(ldrPin);
  
  // Check if it's dark (you may need to adjust this threshold)
  if (ldrValue > 300) {
    // Turn on LED array
    digitalWrite(ledPin1, HIGH);
    digitalWrite(ledPin2, HIGH);
    digitalWrite(ledPin3, HIGH);
  } else {
    // Turn off LED array
    digitalWrite(ledPin1, LOW);
    digitalWrite(ledPin2, LOW);
    digitalWrite(ledPin3, LOW);
  }
  
  // Delay before next reading
  delay(100);
}