Fairy Lamp Code Arduino (v2)

gistfile1.txt

int redPin = 5;
int greenPin = 6;
int bluePin = 3;

int ledMax = 10;
int ledMin = 2;

int redVal = ledMin;
int greenVal = ledMin;
int blueVal = ledMin;

int redGoal = ledMax;
int greenGoal = ledMax;
int blueGoal = ledMax;

bool rest = false;

void setup() {
  pinMode (redPin, OUTPUT);
  pinMode (greenPin, OUTPUT);
  pinMode (bluePin, OUTPUT); 

  randomSeed(analogRead(0));
}

void loop() {


  if ((redVal == redGoal) &&
      (blueVal == blueGoal) &&
      (greenVal == greenGoal)) {

    // We have reached target. Long delay then set new target.
    
    delay(120);
    redGoal = random(ledMin, ledMax);
    greenGoal = random(ledMin, ledMax);
    blueGoal = random(ledMin, ledMax);
    }
 
  else {

    // Iterate towards target with a short delay. 
    
    redVal = adjVal(redGoal, redVal);
    greenVal = adjVal(greenGoal, greenVal);
    blueVal = adjVal(blueGoal, blueVal);
    setColor(redVal, greenVal, blueVal);

    delay(60);
  }
}

int adjVal (int goal, int current) {
  int adj = 0;
  
  if (current < goal) {
    adj = 1;
  }

  if (current > goal) {
    adj = -1;
  }

  return (current + adj);
}
void setColor (int red, int green, int blue) {
  // using common anode LED
  red = 255 - red;
  green = 255 - green;
  blue = 255 - blue;

  analogWrite (redPin, red);
  analogWrite (greenPin, green);
  analogWrite(bluePin, blue);
  
}