#include <FastLED.h> #define LED_PIN_1 3 #define LED_PIN_2 6 #define LED_COUNT_1 53 #define LED_COUNT_2 7 #define BRIGHTNESS 255 #define LED_TYPE WS2812B #define COLOR_ORDER GRB CRGB leds_1[LED_COUNT_1]; CRGB leds_2[LED_COUNT_2]; void setup() { FastLED.addLeds<LED_TYPE, LED_PIN_1, COLOR_ORDER>(leds_1, LED_COUNT_1); FastLED.addLeds<LED_TYPE, LED_PIN_2, COLOR_ORDER>(leds_2, LED_COUNT_2); FastLED.setBrightness(BRIGHTNESS); } void loop() { int brightness_2 = 0; int fadeAmount = 5; for (int i = 0; i < 256; i++) { int brightness_1 = (exp(sin(i / 50.0 * PI)) - 0.36787944) * 108.0; for (int j = 0; j < LED_COUNT_1; j++) { leds_1[j].setRGB(0, brightness_1, 0); } FastLED.show(); delay(20); } }让呼吸灯呼吸一次
时间: 2024-03-21 11:43:51 浏览: 17
好的,您可以将上述代码复制到Arduino IDE中,在setup()函数中设置LED的数量、类型和引脚,然后在loop()函数中使用for循环实现呼吸灯效果。
以下是实现呼吸灯效果的代码,可以将其复制到您的程序中:
```
void loop() {
int brightness_2 = 0;
int fadeAmount = 5;
for (int i = 0; i < 256; i++) {
int brightness_1 = (exp(sin(i / 50.0 * PI)) - 0.36787944) * 108.0;
for (int j = 0; j < LED_COUNT_1; j++) {
leds_1[j].setRGB(0, brightness_1, 0);
}
FastLED.show();
delay(20);
}
for (int i = 255; i >= 0; i--) {
int brightness_1 = (exp(sin(i / 50.0 * PI)) - 0.36787944) * 108.0;
for (int j = 0; j < LED_COUNT_1; j++) {
leds_1[j].setRGB(0, brightness_1, 0);
}
FastLED.show();
delay(20);
}
}
```
这段代码实现了一个循环,每次循环通过计算正弦函数的值来改变LED的亮度,从而呈现出呼吸灯的效果。在循环中,先从亮到暗,再从暗到亮,完成一次呼吸灯的过程。