potentiometer / fade / blink

potent_fade_blink.ino

//create variables for pins
const int blueLed  =  11;
const int whiteLed = 12;
const int potPin = A0;

// Time code
unsigned long previousMillis = 0;
const long interval = 10;

// LED fading variables
boolean fadeUp = true;
int fadeLevel = 0;

//LED blinking variables
int whiteLedState = LOW;

//analog sensor variables
int potVar = 0;

//state machine variables
int stateVar;

void setup() {
  // set up pins
  pinMode(potPin, INPUT);
  pinMode(blueLed, OUTPUT);
  pinMode(whiteLed, OUTPUT);
  Serial.begin(9600);
}

void loop() {
  unsigned long currentMillis = millis(); // What time is it?
  potVar = analogRead(potPin); // read potentiometer
  if (fadeLevel == 255) { // when at max potent lvl
    whiteLedState = HIGH; // blink
    delay(10);
    whiteLedState = HIGH; // three
    delay(10);
    whiteLedState = HIGH; // times
  } else {
    whiteLedState = LOW; // or else off
  }
  potVar = analogRead(fadeLevel);

  for (int fadeValue = 0 ; fadeValue <= 255; fadeValue += 5) {
    // sets the value (range from 0 to 255):
    analogWrite(ledPin, fadeValue);
    // wait for 30 milliseconds to see the dimming effect
    delay(30);
  }

  // fade out from max to min in increments of 5 points:
  for (int fadeValue = 255 ; fadeValue >= 0; fadeValue -= 5) {
    sets the value (range from 0 to 255):
      analogWrite(ledPin, fadeValue);
      if (currentMillis - previousMillis >= interval) {
      previousMillis = currentMillis;
      if (fadeUp == true) {
        if (fadeLevel != 255) fadeLevel++;
      } else {
          if (fadeLevel != 0) fadeLevel--;
      }
    }

    if ( potVar == 0) {
      fadeUp = true;
    } else {
      fadeUp = false;
    }

    digitalWrite(whiteLed, whiteLedState);
    analogWrite(blueLed, fadeValue);

  }