Panduan Praktikum: Mengontrol WS dengan Arduino Uno di Virtual Lab

// MicroLab Virtual Laboratory & ControllersTech Tutorial
// WS2812B NeoPixel 8-LED Ring - Animations & Color Effects
#include <Adafruit_NeoPixel.h>

#define LED_PIN    13     // Pin Digital DIN terhubung ke Pin D6 Arduino
#define NUM_LEDS   8     // Jumlah LED NeoPixel pada ring (8 LEDs)
#define BRIGHTNESS 50    // Kecerahan awal (0 - 255)

// Inisialisasi objek strip NeoPixel
Adafruit_NeoPixel strip(NUM_LEDS, LED_PIN, NEO_GRB + NEO_KHZ800);

void setup() {
  Serial.begin(115200);
  delay(500);
  Serial.println(F("🚀 Initializing WS2812B NeoPixel 8-LED Ring..."));

  strip.begin();           // Inisialisasi driver NeoPixel
  strip.setBrightness(BRIGHTNESS);
  strip.show();            // Pastikan semua pixel mati saat awal
  Serial.println(F("✓ WS2812B Ready! Menjalankan animasi..."));
}

void loop() {
  Serial.println(F("✨ Effect 1: Color Wipe (Merah, Hijau, Biru)"));
  colorWipe(strip.Color(255, 0, 0), 50);    // Merah
  colorWipe(strip.Color(0, 255, 0), 50);    // Hijau
  colorWipe(strip.Color(0, 0, 255), 50);    // Biru

  Serial.println(F("🌈 Effect 2: Rainbow Cycle"));
  rainbow(20);

  Serial.println(F("💡 Effect 3: Theater Chase (Marquee)"));
  theaterChase(strip.Color(255, 180, 0), 70); // Oranye/Emas
  theaterChase(strip.Color(0, 255, 200), 70); // Cyan

  Serial.println(F("💨 Effect 4: Breathing Pulsating Effect"));
  breathingEffect(0, 150, 255, 10); // Cyan lembut

  delay(500);
}

// 1. Mengisi warna LED satu per satu berurutan
void colorWipe(uint32_t color, int wait) {
  for (int i = 0; i < strip.numPixels(); i++) {
    strip.setPixelColor(i, color);
    strip.show();
    delay(wait);
  }
}

// 2. Animasi Pelangi Halus (Rainbow Effect)
void rainbow(int wait) {
  for (long firstPixelHue = 0; firstPixelHue < 5 * 65536; firstPixelHue += 256) {
    strip.rainbow(firstPixelHue);
    strip.show();
    delay(wait);
  }
}

// 3. Efek Theater Chase (Lampu Berjalan / Rotasi)
void theaterChase(uint32_t color, int wait) {
  for (int a = 0; a < 10; a++) {
    for (int b = 0; b < 3; b++) {
      strip.clear();
      for (int c = b; c < strip.numPixels(); c += 3) {
        strip.setPixelColor(c, color);
      }
      strip.show();
      delay(wait);
    }
  }
}

// 4. Efek Pernapasan (Breathing Fade In / Fade Out)
void breathingEffect(uint8_t r, uint8_t g, uint8_t b, int wait) {
  for (int i = 5; i <= 150; i += 3) {
    strip.setBrightness(i);
    for (int p = 0; p < strip.numPixels(); p++) {
      strip.setPixelColor(p, strip.Color(r, g, b));
    }
    strip.show();
    delay(wait);
  }
  for (int i = 150; i >= 5; i -= 3) {
    strip.setBrightness(i);
    for (int p = 0; p < strip.numPixels(); p++) {
      strip.setPixelColor(p, strip.Color(r, g, b));
    }
    strip.show();
    delay(wait);
  }
  strip.setBrightness(BRIGHTNESS); // Kembalikan ke kecerahan normal
}