ArduinoでクリスマスツリーのLEDライト：WS2812Bで雪と虹のエフェクト

1#include <FastLED.h>
2
3#define LED_PIN     6      // şeridin DIN girişi (330 ohm üzerinden) / strip DIN input (via 330 ohm)
4#define BUTTON_PIN  2      // buton, diğer bacak GND / button, other leg to GND
5#define NUM_LEDS    100    // şeritteki LED sayısı / number of LEDs on the strip
6#define BRIGHTNESS  120    // genel parlaklık 0-255 / global brightness 0-255
7#define MAX_MA      3200   // 4 A adaptörün %80'i / 80% of a 4 A supply
8
9CRGB leds[NUM_LEDS];
10
11const uint8_t MODE_COUNT = 3;                          // 0 gökkuşağı, 1 kar, 2 yıldız / 0 rainbow, 1 snow, 2 twinkle
12const uint16_t FRAME_MS[MODE_COUNT] = {20, 60, 30};    // kare süreleri (ms) / frame times (ms)
13const CRGB XMAS[4] = {CRGB::Red, CRGB::Green, CRGB::Gold, CRGB::White};
14
15uint8_t mode = 0;
16uint8_t hue = 0;
17
18void setup() {
19  pinMode(BUTTON_PIN, INPUT_PULLUP);
20  FastLED.addLeds<WS2812B, LED_PIN, GRB>(leds, NUM_LEDS);
21  FastLED.setMaxPowerInVoltsAndMilliamps(5, MAX_MA);  // akım sınırı / current limit
22  FastLED.setBrightness(BRIGHTNESS);
23  FastLED.clear(true);                                // açılışta hepsini söndür / all off at start
24}
25
26void checkButton() {
27  static bool lastState = HIGH;
28  static unsigned long lastChange = 0;
29  bool state = digitalRead(BUTTON_PIN);
30  if (state != lastState && millis() - lastChange > 50) {  // 50 ms zıplama filtresi / 50 ms debounce
31    lastChange = millis();
32    lastState = state;
33    if (state == LOW) {                                     // basıldı / pressed
34      mode = (mode + 1) % MODE_COUNT;
35      FastLED.clear();
36    }
37  }
38}
39
40void rainbow() {
41  fill_rainbow(leds, NUM_LEDS, hue, 3);   // her LED'de ton 3 artar / hue +3 per LED
42  hue += 2;                               // renkler döner / colours rotate
43}
44
45void snowfall() {
46  for (int i = 0; i < NUM_LEDS - 1; i++) {
47    leds[i] = leds[i + 1];                // bir LED aşağı kaydır / shift one LED down
48  }
49  if (random8() < 38) {
50    leds[NUM_LEDS - 1] = CRGB::White;     // tepede yeni kar tanesi / new flake at the top
51  } else {
52    leds[NUM_LEDS - 1] = CRGB(0, 0, 24);  // koyu mavi gece / dark blue night
53  }
54}
55
56void twinkle() {
57  fadeToBlackBy(leds, NUM_LEDS, 20);      // hepsini biraz kıs / dim everything a little
58  if (random8() < 80) {
59    leds[random16(NUM_LEDS)] = XMAS[random8(4)];  // rastgele yıldız / random star
60  }
61}
62
63void loop() {
64  checkButton();
65  static unsigned long lastFrame = 0;
66  if (millis() - lastFrame >= FRAME_MS[mode]) {
67    lastFrame = millis();
68    if (mode == 0) rainbow();
69    else if (mode == 1) snowfall();
70    else twinkle();
71    FastLED.show();                       // renkleri şeride gönder / push colours to the strip
72  }
73}

1#include <Adafruit_NeoPixel.h>
2
3#define LED_PIN     13     // şeridin DIN girişi (330 ohm üzerinden) / strip DIN input (via 330 ohm)
4#define BUTTON_PIN  4      // buton, diğer bacak GND / button, other leg to GND
5#define NUM_LEDS    100    // şeritteki LED sayısı / number of LEDs on the strip
6
7Adafruit_NeoPixel strip(NUM_LEDS, LED_PIN, NEO_GRB + NEO_KHZ800);
8
9const uint8_t MODE_COUNT = 3;                          // 0 gökkuşağı, 1 kar, 2 yıldız / 0 rainbow, 1 snow, 2 twinkle
10const uint16_t FRAME_MS[MODE_COUNT] = {20, 60, 30};    // kare süreleri (ms) / frame times (ms)
11const uint8_t PALETTE[4][3] = {{255, 0, 0}, {0, 255, 0}, {255, 160, 0}, {255, 255, 255}};
12
13uint8_t level[NUM_LEDS];      // LED başına parlaklık / per-LED level
14uint8_t colorIdx[NUM_LEDS];   // yıldız rengi / star colour index
15uint8_t mode = 0;
16uint16_t hue = 0;
17
18void setup() {
19  pinMode(BUTTON_PIN, INPUT_PULLUP);
20  strip.begin();
21  strip.setBrightness(110);   // genel parlaklık / global brightness
22  strip.clear();
23  strip.show();
24}
25
26void checkButton() {
27  static bool lastState = HIGH;
28  static unsigned long lastChange = 0;
29  bool state = digitalRead(BUTTON_PIN);
30  if (state != lastState && millis() - lastChange > 50) {  // 50 ms zıplama filtresi / 50 ms debounce
31    lastChange = millis();
32    lastState = state;
33    if (state == LOW) {                                     // basıldı / pressed
34      mode = (mode + 1) % MODE_COUNT;
35      memset(level, 0, sizeof(level));                      // efekt belleğini sıfırla / reset effect buffer
36      strip.clear();
37    }
38  }
39}
40
41void rainbow() {
42  for (int i = 0; i < NUM_LEDS; i++) {
43    uint16_t h = hue + (uint32_t)i * 65536UL / NUM_LEDS;   // LED'e göre ton / hue per LED
44    strip.setPixelColor(i, strip.gamma32(strip.ColorHSV(h)));
45  }
46  hue += 256;                                              // renkler döner / colours rotate
47}
48
49void snowfall() {
50  for (int i = 0; i < NUM_LEDS - 1; i++) level[i] = level[i + 1];   // bir LED aşağı kaydır / shift one LED down
51  level[NUM_LEDS - 1] = (random(100) < 15) ? 255 : 0;               // tepede yeni kar / new flake on top
52  for (int i = 0; i < NUM_LEDS; i++) {
53    if (level[i]) strip.setPixelColor(i, 255, 255, 255);            // kar tanesi / snowflake
54    else strip.setPixelColor(i, 0, 0, 24);                          // koyu mavi gece / dark blue night
55  }
56}
57
58void twinkle() {
59  for (int i = 0; i < NUM_LEDS; i++) {
60    level[i] = (level[i] > 12) ? level[i] - 12 : 0;                 // yavaşça sön / fade out
61  }
62  if (random(100) < 30) {
63    int p = random(NUM_LEDS);
64    level[p] = 255;                                                 // yeni yıldız / new star
65    colorIdx[p] = random(4);
66  }
67  for (int i = 0; i < NUM_LEDS; i++) {
68    const uint8_t *c = PALETTE[colorIdx[i]];
69    strip.setPixelColor(i, c[0] * level[i] / 255, c[1] * level[i] / 255, c[2] * level[i] / 255);
70  }
71}
72
73void loop() {
74  checkButton();
75  static unsigned long lastFrame = 0;
76  if (millis() - lastFrame >= FRAME_MS[mode]) {
77    lastFrame = millis();
78    if (mode == 0) rainbow();
79    else if (mode == 1) snowfall();
80    else twinkle();
81    strip.show();                                                   // renkleri şeride gönder / push colours to the strip
82  }
83}

1from machine import Pin
2import neopixel, time, random
3
4NUM_LEDS = 100
5BRIGHT = 0.4                                   # 0-1 parlaklık / brightness
6np = neopixel.NeoPixel(Pin(0), NUM_LEDS)       # veri GP0 / data on GP0
7button = Pin(15, Pin.IN, Pin.PULL_UP)          # buton GP15-GND / button GP15-GND
8
9mode = 0
10MODE_COUNT = 3                                 # 0 gökkuşağı, 1 kar, 2 yıldız / 0 rainbow, 1 snow, 2 twinkle
11FRAME_MS = (20, 60, 30)                        # kare süreleri / frame times
12level = [0] * NUM_LEDS                         # LED başına parlaklık / per-LED level
13color_idx = [0] * NUM_LEDS                     # yıldız rengi / star colour index
14PALETTE = ((255, 0, 0), (0, 255, 0), (255, 160, 0), (255, 255, 255))
15hue = 0
16
17def scale(r, g, b):
18    return (int(r * BRIGHT), int(g * BRIGHT), int(b * BRIGHT))
19
20def wheel(pos):
21    # 0-255 -> gökkuşağı rengi / rainbow colour
22    pos = pos & 255
23    if pos < 85:
24        return (255 - pos * 3, pos * 3, 0)
25    if pos < 170:
26        pos -= 85
27        return (0, 255 - pos * 3, pos * 3)
28    pos -= 170
29    return (pos * 3, 0, 255 - pos * 3)
30
31def rainbow():
32    global hue
33    for i in range(NUM_LEDS):
34        np[i] = scale(*wheel(hue + i * 256 // NUM_LEDS))
35    hue = (hue + 2) & 255                      # renkler döner / colours rotate
36
37def snowfall():
38    for i in range(NUM_LEDS - 1):
39        level[i] = level[i + 1]                # bir LED aşağı kaydır / shift one LED down
40    level[-1] = 255 if random.randint(0, 99) < 15 else 0
41    for i in range(NUM_LEDS):
42        np[i] = scale(255, 255, 255) if level[i] else scale(0, 0, 24)
43
44def twinkle():
45    for i in range(NUM_LEDS):
46        level[i] = level[i] - 12 if level[i] > 12 else 0   # yavaşça sön / fade out
47    if random.randint(0, 99) < 30:
48        p = random.randint(0, NUM_LEDS - 1)
49        level[p] = 255                         # yeni yıldız / new star
50        color_idx[p] = random.randint(0, 3)
51    for i in range(NUM_LEDS):
52        r, g, b = PALETTE[color_idx[i]]
53        k = level[i] * BRIGHT / 255
54        np[i] = (int(r * k), int(g * k), int(b * k))
55
56effects = (rainbow, snowfall, twinkle)
57last_btn = 1
58last_change = time.ticks_ms()
59last_frame = time.ticks_ms()
60
61while True:
62    now = time.ticks_ms()
63    state = button.value()
64    if state != last_btn and time.ticks_diff(now, last_change) > 50:   # zıplama filtresi / debounce
65        last_change = now
66        last_btn = state
67        if state == 0:                         # basıldı / pressed
68            mode = (mode + 1) % MODE_COUNT
69            for i in range(NUM_LEDS):
70                level[i] = 0
71    if time.ticks_diff(now, last_frame) >= FRAME_MS[mode]:
72        last_frame = now
73        effects[mode]()
74        np.write()                             # şeride gönder / push to the strip