// Define the pin numbers
const int redLEDPin = 2;
const int greenLEDPin = 3;
const int photoresistorPin = A0;

// Define the light level thresholds
const int semiDarkThreshold = 500; // Adjust this value based on your environment
const int veryDarkThreshold = 300; // Adjust this value based on your environment

void setup() {
  // Initialize the LED pins as outputs
  pinMode(redLEDPin, OUTPUT);
  pinMode(greenLEDPin, OUTPUT);
  
  // Initialize serial communication for debugging
  Serial.begin(9600);
}

void loop() {
  // Read the light level from the photoresistor
  int lightLevel = analogRead(photoresistorPin);
  
  // Print the light level to the serial monitor
  Serial.println(lightLevel);
  
  // Check the light level and turn on LEDs accordingly
  if (lightLevel < veryDarkThreshold) {
    // If it's very dark, turn on both LEDs
    digitalWrite(redLEDPin, HIGH);
    digitalWrite(greenLEDPin, HIGH);
  } else if (lightLevel < semiDarkThreshold) {
    // If it's semi-dark, turn on only the red LED
    digitalWrite(redLEDPin, HIGH);
    digitalWrite(greenLEDPin, LOW);
  } else {
    // If it's not dark, turn off both LEDs
    digitalWrite(redLEDPin, LOW);
    digitalWrite(greenLEDPin, LOW);
  }
  
  // Wait for a short period before reading the light level again
  delay(200);
}