RGB

int redLEDPin = 11;
int greenLEDPin = 10;
int blueLEDPin = 9;

int redSwitchPin = 7;
int greenSwitchPin = 6;
int blueSwitchPin = 5;
int randSwitchPin = 4;

int red = 0;
int blue = 0;
int green = 0;

void setup()
{
  pinMode(redLEDPin, OUTPUT);
  pinMode(greenLEDPin, OUTPUT);
  pinMode(blueLEDPin, OUTPUT);
  pinMode(redSwitchPin, INPUT_PULLUP);
  pinMode(greenSwitchPin, INPUT_PULLUP);
  pinMode(blueSwitchPin, INPUT_PULLUP);
  pinMode(randSwitchPin, INPUT_PULLUP);
}

void loop()
{
  if (digitalRead(redSwitchPin) == LOW)
  {
    red ++;
    if (red > 255) red = 0;
  }
  if (digitalRead(greenSwitchPin) == LOW)
  {
    green ++;
    if (green > 255) green = 0;
  }
  if (digitalRead(blueSwitchPin) == LOW)
  {
    blue ++;
    if (blue > 255) blue = 0;
  }
  if (digitalRead(randSwitchPin) == LOW)
  {
    red = random(0, 255);
    green = random(0, 255);
    blue = random (0, 255);
  }

  analogWrite(redLEDPin, red);
  analogWrite(greenLEDPin, green);
  analogWrite(blueLEDPin, blue);
  delay(32);
}