int poten;
int potenled;


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

void loop() {
  // put your main code here, to run repeatedly:
  poten = analogRead(A0);
  potenled = (map(poten, 0, 1023, 0, 255));

  analogWrite(3, potenled);

  Serial.print("slider raw ");
  Serial.print(poten);

  Serial.print(" ");

  Serial.print("led ");
  Serial.println(potenled);


}