#define LDR_PIN 34
#define LED_PIN 18

const int pwmChannel = 0;
const int freq = 5000;
const int resolution = 8;

void setup() {
  Serial.begin(115200);
  ledcAttach(LED_PIN, freq, resolution);
}

void loop() {

  int ldrValue = analogRead(LDR_PIN);
  int brightness = map(ldrValue, 0, 4095, 255, 0);
  ledcWrite(LED_PIN, brightness);

  Serial.print("LDR Value: ");
  Serial.print(ldrValue);

  Serial.print(" Brightness: ");
  Serial.println(brightness);

  delay(1000);
}