nt pot = A0;
int analogValue = 0;
int mappedAnalogValue = 0;
int led = 6;
int ledFade = 3;
int brightness = 0;

void setup() {
  // put your setup code here, to run once:

  Serial.begin(9600);
  pinMode(pot, INPUT);
  pinMode(led, OUTPUT);
  pinMode(ledFade, OUTPUT);
}

void loop() {
  // put your main code here, to run repeatedly:
  // 0 - 1023
  // 0 - 100%
  // 0 - 10


  while (brightness != 255){
    analogWrite(ledFade, brightness);
    brightness += 5;
    delay(20);
  }
  while (brightness != 0){
    analogWrite(ledFade, brightness);
    brightness -= 5;
    delay(20);
  }

}