#define led A0
#define pot A2

void setup() {
  // put your setup code here, to run once:
  pinMode(led, OUTPUT);
  pinMode(pot, INPUT);
  Serial.begin(115200);
}

void loop() {
  // put your main code here, to run repeatedly:
  // analogWrite(9,255);
  int val = analogRead(pot); 
  int map_value = map(val, 0, 1024, 0, 255);
  Serial.println(map_value);

  analogWrite(led, map_value); 

  delay(500);
}