int ldrPin = A0;     
int redPin = 9;      
int greenPin = 10;   
int bluePin = 11;    

void setup() {
    pinMode(redPin, OUTPUT);
    pinMode(greenPin, OUTPUT);
    pinMode(bluePin, OUTPUT);
    pinMode(ldrPin, INPUT);
    Serial.begin(9600);
}

void loop() {
    int lightValue = analogRead(ldrPin);

    if (lightValue < 300) {
        digitalWrite(redPin, LOW);
        digitalWrite(greenPin, LOW);
        digitalWrite(bluePin, HIGH);
    } else if (lightValue < 700) {
        digitalWrite(redPin, LOW);
        digitalWrite(greenPin, HIGH);
        digitalWrite(bluePin, LOW);
    } else {
        digitalWrite(redPin, HIGH);
        digitalWrite(greenPin, LOW);
        digitalWrite(bluePin, LOW);
    }

    Serial.print("LDR Value: ");
    Serial.print(lightValue);
    Serial.print("   Red: ");
    Serial.print(analogRead(redPin));
    Serial.print("   Green: ");
    Serial.print(analogRead(greenPin));
    Serial.print("   Blue: ");
    Serial.println(analogRead(bluePin));

    delay(100);
}