const int pinR = 3;
const int pinG = 5;
const int pinB = 6;

void setup() {
  pinMode(pinR, OUTPUT);
  pinMode(pinG, OUTPUT);
  pinMode(pinB, OUTPUT);
}

void setColor(int redValue, int greenValue, int blueValue) {
  analogWrite(pinR, redValue);
  analogWrite(pinG, greenValue);
  analogWrite(pinB, blueValue);
}

void loop() {
  int colors[][3] = {
    {255, 0, 0},
    {0, 255, 0},
    {0, 0, 255},
    {255, 255, 0},
    {255, 255, 255},
    {255, 0, 255},
    {0, 0, 0}
  };

  int numColors = sizeof(colors) / sizeof(colors[0]);

  for (int i = 0; i < numColors; i++) {
    setColor(colors[i][0], colors[i][1], colors[i][2]);
    delay(1000);
  }
}