/*
  Fade control using potentio

  Amadeus Timothy S
  21/482724/TK/53351
*/

int led = 9; // the PWM pin the LED is attached to
int potentio = A0; // Potentiometer signal pin
int delVal = 0; // value of the delay based on potentiometer
int brightness = 0; // how bright the LED is
int fadeAmount = 5; // how many points to fade the LED by
// the setup routine runs once when you press reset:

void setup() {
   // declare pin 9 to be an output:
   pinMode(led, OUTPUT);
   pinMode(potentio, INPUT);
}

// the loop routine runs over and over again forever:

void loop() {
   // set the brightness of pin 9:
   analogWrite(led, brightness);
   // change the brightness for next time through the loop:
   brightness = brightness + fadeAmount;
   // reverse the direction of the fading at the ends of the fade:
   if (brightness == 0 || brightness == 255) {
      fadeAmount = -fadeAmount ;
   }
   delVal = analogRead(potentio)/100; // set range of potentiometer to 0 - 100 delay value
   delay(delVal);
}