Light Festival Demo Code

light-festival.ino

const byte rgb_8_r = 13;
const byte rgb_8_b = 15;
const byte rgb_8_g = 2;
const byte rgb_7_r = 0;
const byte rgb_7_b = 4;
const byte rgb_7_g = 16;
const byte rgb_6_r = 17;
const byte rgb_6_b = 5;
const byte rgb_6_g = 18;
const byte rgb_5_r = 23;
const byte rgb_5_b = 19;
const byte rgb_5_g = 22;

const byte rgb_4_r = 12;
const byte rgb_4_b = 14;
const byte rgb_4_g = 27;
const byte rgb_3_r = 26;
const byte rgb_3_b = 25;
const byte rgb_3_g = 33;
const byte rgb_12_r = 32;
const byte rgb_12_b = 35;
const byte rgb_12_g = 34;

void setup() {
  // put your setup code here, to run once:
  pinMode(rgb_8_r, OUTPUT);
  pinMode(rgb_8_b, OUTPUT);
  pinMode(rgb_8_g, OUTPUT);
  pinMode(rgb_7_r, OUTPUT);
  pinMode(rgb_7_b, OUTPUT);
  pinMode(rgb_7_g, OUTPUT);
  pinMode(rgb_6_r, OUTPUT);
  pinMode(rgb_6_b, OUTPUT);
  pinMode(rgb_6_g, OUTPUT);
  pinMode(rgb_5_r, OUTPUT);
  pinMode(rgb_5_b, OUTPUT);
  pinMode(rgb_5_g, OUTPUT);

  pinMode(rgb_4_r, OUTPUT);
  pinMode(rgb_4_b, OUTPUT);
  pinMode(rgb_4_g, OUTPUT);
  pinMode(rgb_3_r, OUTPUT);
  pinMode(rgb_3_b, OUTPUT);
  pinMode(rgb_3_g, OUTPUT);
  pinMode(rgb_12_r, OUTPUT);
  pinMode(rgb_12_b, OUTPUT);
  pinMode(rgb_12_g, OUTPUT);
}

const byte reds[] = {rgb_8_r,
                     rgb_7_r,
                     rgb_6_r,
                     rgb_5_r,
                     rgb_4_r,
                     rgb_3_r,
                     rgb_12_r};

const byte greens[] = {rgb_8_g,
                     rgb_7_g,
                     rgb_6_g,
                     rgb_5_g,
                     rgb_4_g,
                     rgb_3_g,
                     rgb_12_g};

const byte blues[] = {rgb_8_b,
                     rgb_7_b,
                     rgb_6_b,
                     rgb_5_b,
                     rgb_4_b,
                     rgb_3_b,
                     rgb_12_b};

const int timer = 500;

void loop() {
  on_all_all();
  flash_all(reds);
  on_all_all();
  flash_all(greens);
  on_all_all();
  flash_all(blues);
  off_all_all();
  flash_all(reds);
  off_all_all();
  flash_all(greens);
  off_all_all();
  flash_all(blues);
}

void on_all_all() {
  on_all(reds);
  on_all(greens);
  on_all(blues);
}

void off_all_all() {
  off_all(reds);
  off_all(greens);
  off_all(blues);
}

void on_all(const byte leds[]) {
  for (byte i = 0; i < 7; i++) {
    digitalWrite(leds[i], LOW);
  }
}

void off_all(const byte leds[]) {
  for (byte i = 0; i < 7; i++) {
    digitalWrite(leds[i], HIGH);
  }
}

void flash_all(const byte leds[]) {
  for (byte i = 0; i < 7; i++) {
    digitalWrite(leds[i], LOW);
    delay(timer);
    digitalWrite(leds[i], HIGH);
    delay(timer);
  }
}