#define LED 23
#define pot 13

const int freq = 5000; //set the PWM freq to 5000Hz
const int ledChannel = 0; //PWM channel 0-15
const int resolution = 10; //Resolution 8, 10, 12, 15

void setup() {
  // put your setup code here, to run once:
  // configure LED PWM functionalitites
  ledcSetup(ledChannel, freq, resolution);
  // attach the channel to the GPIO to be controlled
  ledcAttachPin(LED, ledChannel);
}

void loop() {
  // put your main code here, to run repeatedly:
 int x = map(analogRead(pot), 0, 4095, 0, 1023); //map the input resolution to output resolution
  ledcWrite(ledChannel, x); //write the PWM value to GPIO pin
  delay(1000); //Delay 1 second
}