AnalogInOut

// Pot input LED output for Interaction Lab course

int ledPin = 3;
int analogInPin = 0;
int val = 0;

void setup() {
  // put your setup code here, to run once:
pinMode(ledPin, OUTPUT);
Serial.begin(9600);
}

void loop() {
  // put your main code here, to run repeatedly:

  
val = analogRead(analogInPin); // read the value from a sensor

Serial.println(val);
delay(1);

analogWrite(ledPin, val /4);
}

https://gist.github.com/margmarg/fc134b70b6f0708ff9a55eb9b8d8282d. checking share link