#define POT 0
#define LED1 2

void setup() {
  pinMode(LED1,OUTPUT);
  Serial.begin(9600);
 

}

void loop() {
  int val = analogRead(POT);
  Serial.println("ADC:");
  Serial.println(val);
  Serial.println("Voltage:");
  Serial.println(val * 3.3 / 1024.0);
  analogWrite(LED1, val);
  delay(500);
}