fade_fullcolor_led100429.pde

// for setup()
int ledPinRed =  11;
int ledPinGreen =  10;
int ledPinBlue =  9;

// for getRandomColor()
int Color[3] = {0, 0, 0};

// for loop()
int valueRed = 0;
int valueGreen = 0;
int valueBlue = 0;

// for fadeBlink()
int i = 0;
int tempRed = 0;
int tempGreen = 0;
int tempBlue = 0;

void setup()   {                
  // initialize the digital pin as an output:
  pinMode(ledPinRed, OUTPUT);     
  pinMode(ledPinGreen, OUTPUT);     
  pinMode(ledPinBlue, OUTPUT);     

  digitalWrite(ledPinRed, HIGH);
  digitalWrite(ledPinGreen, HIGH);
  digitalWrite(ledPinBlue, HIGH);
  
  Serial.begin(9600); 
}

void loop()                     
{
  // 光らせる色をランダムに決める
  setRandomColor();
  
  // 実際に光らせる
  fadeBlink(Color[0], Color[1], Color[2]);
}

void setRandomColor()
{
  Color[0] = random(4);
  Color[1] = random(4 - Color[0]);
  Color[2] = 3 - (Color[0] + Color[1]);
  
  Color[0] = Color[0] * 64;
  Color[1] = Color[1] * 64;
  Color[2] = Color[2] * 64;
  
  Serial.println(Color[0]);
  Serial.println(Color[1]);
  Serial.println(Color[2]);
  Serial.println("");
}

void fadeBlink(int valueRed, int valueGreen, int valueBlue)
{
  for (i = 1; i < 32; i++)
  {
    tempRed = valueRed * i / 256;
    tempGreen = valueGreen * i / 256;
    tempBlue = valueBlue * i / 256;
    
    analogWrite3leds(tempRed, tempGreen, tempBlue);
    delay(100);
  }

  for (i = 31; i > 0; i--)
  {
    tempRed = valueRed * i / 256;
    tempGreen = valueGreen * i / 256;
    tempBlue = valueBlue * i / 256;
    
    analogWrite3leds(tempRed, tempGreen, tempBlue);
    delay(100);
  }
  
  delay(2000);
}

void analogWrite3leds(int valueRed, int valueGreen, int valueBlue) {
    if (valueRed) { analogWrite(ledPinRed, 256 - valueRed); }
    if (valueGreen) { analogWrite(ledPinGreen, 256 - valueGreen); }
    if (valueBlue) { analogWrite(ledPinBlue, 256 - valueBlue); }
}