ESP32
2026-04-14 23:48阅读:评论:
ESP32-S3 控制 WS2812B灯珠
需要FastLED库 #include <FastLED.h> #define DATA_PIN 7 // 数据引脚连接到LED灯带的DIN #define LED_COUNT 16 // LED灯带的LED数量 #define BRIGHTNESS 120 // 亮度（0-255） CR
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#include <FastLED.h> #define DATA_PIN 7 // 数据引脚连接到LED灯带的DIN#define LED_COUNT 16 // LED灯带的LED数量#define BRIGHTNESS 120 // 亮度（0-255） CRGB leds[LED_COUNT];#define DELAY_TIME 3000 // ==================== 函数声明（修复所有报错） ====================void breathingRed();void rainbowCycle();void theaterChase();void strobe();void meteorRain();void colorTwinkle();void fullRainbow();// ================================================================== void setup() { FastLED.addLeds<WS2812B, DATA_PIN, GRB>(leds, LED_COUNT); FastLED.setBrightness(BRIGHTNESS);} void loop() { breathingRed(); // 1. 红色呼吸 rainbowCycle(); // 2. 彩虹流动 theaterChase(); // 3. 跑马灯追逐 strobe(); // 4. 爆闪 meteorRain(); // 5. 流星 colorTwinkle(); // 6. 彩色闪烁 fullRainbow(); // 7. 全屏彩虹} // ------------------- 1. 呼吸灯 -------------------void breathingRed() { unsigned long end = millis() + DELAY_TIME; while (millis() < end) { for (int i = 0; i < 255; i++) { fill_solid(leds, LED_COUNT, CRGB(i, 0, 0)); FastLED.show(); delay(4); } for (int i = 255; i > 0; i--) { fill_solid(leds, LED_COUNT, CRGB(i, 0, 0)); FastLED.show(); delay(4); } }} // ------------------- 2. 彩虹流动 -------------------void rainbowCycle() { unsigned long end = millis() + DELAY_TIME; uint8_t hue = 0; while (millis() < end) { fill_rainbow(leds, LED_COUNT, hue++, 7); FastLED.show(); delay(20); }} // ------------------- 3. 跑马灯追逐 -------------------void theaterChase() { unsigned long end = millis() + DELAY_TIME; while (millis() < end) { for (int a = 0; a < 3; a++) { for (int b = 0; b < LED_COUNT; b += 3) leds[b + a] = CRGB::Blue; FastLED.show(); delay(50); for (int b = 0; b < LED_COUNT; b += 3) leds[b + a] = CRGB::Black; } }} // ------------------- 4. 爆闪 -------------------void strobe() { unsigned long end = millis() + DELAY_TIME; while (millis() < end) { fill_solid(leds, LED_COUNT, CRGB::White); FastLED.show(); delay(20); fill_solid(leds, LED_COUNT, CRGB::Black); FastLED.show(); delay(20); }} // ------------------- 5. 流星 -------------------void meteorRain() { unsigned long end = millis() + DELAY_TIME; while (millis() < end) { for (int i = 0; i < LED_COUNT + 10; i++) { fadeToBlackBy(leds, LED_COUNT, 30); if (i < LED_COUNT) leds[i] = CRGB::Cyan; FastLED.show(); delay(25); } }} // ------------------- 6. 彩色闪烁 -------------------void colorTwinkle() { unsigned long end = millis() + DELAY_TIME; while (millis() < end) { leds[random(LED_COUNT)] = CHSV(random(255), 255, 255); FastLED.show(); fadeToBlackBy(leds, LED_COUNT, 20); delay(30); }} // ------------------- 7. 全屏彩虹 -------------------void fullRainbow() { unsigned long end = millis() + DELAY_TIME; uint8_t hue = 0; while (millis() < end) { fill_solid(leds, LED_COUNT, CHSV(hue++, 255, 255)); FastLED.show(); delay(15); }}