Build the following circuit:

Enter the following code:

// Pins
const int knob_pin = A0;
const int led_pin = 5;

void setup() {
  pinMode(led_pin, OUTPUT);
}

void loop() {
  
  // Read knob value (0 - 1023)
  int val = analogRead(knob_pin);
  
  // Convert knob value to PWM value (0 - 255)
  int brightness = map(val, 0, 1023, 0, 255);
  
  // Set LED brightness
  analogWrite(led_pin, brightness);
}

Simulator: https://tinkercad.com/things/bs1jVzFCfZ8