#define Switch A0
#define pot A1
#define LED 3
int State, potVal, brightness;


void setup() {
Serial.begin(9600);
pinMode(Switch, INPUT_PULLUP); 
pinMode(pot, INPUT);
pinMode(LED, OUTPUT);
}

void loop() {
State = digitalRead(Switch);
potVal = analogRead(pot);

//Serial.print("State:  ");  Serial.println(State);
//Serial.print("potVal:  "); Serial.println(potVal);
//delay(100);

//brightness = map(potVal, 0, 1023, 255, 0);
//analogWrite(LED, brightness);

if (State == 0){
  fade();
}
else {
  blink();
}
}

void fade(){
  for(int x = 0; x <=255; x++){
    analogWrite(LED, x); delay(5);
  }
  for(int x = 255; x >=0; x--){
    analogWrite(LED, x); delay(5);
  }
}
void blink(){
   digitalWrite(LED, HIGH);
   delay(500);
   digitalWrite(LED, LOW);
   delay(500);
}