const int ldrPin = A0; // Pin connected to the LDR
const int redPin = 9;  // Red pin of the RGB LED
const int greenPin = 10; // Green pin of the RGB LED
const int bluePin = 11; // Blue pin of the RGB LED

void setup() {
  pinMode(ldrPin, INPUT);
  pinMode(redPin, OUTPUT);
  pinMode(greenPin, OUTPUT);
  pinMode(bluePin, OUTPUT);
}

void loop() {
  int ldrValue = analogRead(ldrPin); // Read the value from the LDR
  int redValue, greenValue, blueValue;

  // Normalize LDR value to 0-255 range
  int normalizedValue = map(ldrValue, 0, 1023, 0, 255);

  if (normalizedValue <= 85) { // Lower third of light levels
    // Transition from green to blue
    greenValue = 255 - (normalizedValue * 3);
    blueValue = normalizedValue * 3;
    redValue = 0;
  } else if (normalizedValue <= 170) { // Middle third of light levels
    // Transition from blue to red
    blueValue = 255 - ((normalizedValue - 85) * 3);
    redValue = (normalizedValue - 85) * 3;
    greenValue = 0;
  } else { // Upper third of light levels
    // Red is dominant
    redValue = 255;
    greenValue = blueValue = 0;
  }

  // Set the RGB LED color
  analogWrite(redPin, redValue);
  analogWrite(greenPin, greenValue);
  analogWrite(bluePin, blueValue);
  Serial.println(normalizedValue);

  delay(100); // Short delay for stability
}