Light Sensitive Sensor

https://imgur.com/a/s1T2HtL

int lightSensorValue = 0; // Variable to store the light sensor reading
void setup()
{
  pinMode(A0, INPUT); // Set A0 pin as an input for the light sensor
  pinMode(9, OUTPUT); // Set pin 9 as an output to control the LED
  Serial.begin(9600); // Initialize serial communication at 9600 baud
}
void loop()
{
  lightSensorValue = analogRead(A0);                         // Read the light sensor value
  Serial.println(lightSensorValue);                          // Print the sensor value to the Serial Monitor
  int ledBrightness = map(lightSensorValue, 0, 1023, 0, 255); // Map the sensor value to LED brightness
  analogWrite(9, ledBrightness);                             // Control LED brightness based on the sensor reading
  delay(100);                                                // Wait for 100 milliseconds before the next loop iteration
}