#include

#define PIN 6

#define NUMPIXELS 2

ColorLED strip = ColorLED(NUMPIXELS, PIN);

int i = 0;

int gap = 1;

void setup() {

strip.begin();

}

void loop() {

// 用for写呼吸灯，控制第一个灯

for (int i = 0; i<=255; i++){

strip.setPixelColor(0, i, 0, 0);

strip.show();

delay(15);

}

for (int i = 255; i>=0; i--){

strip.setPixelColor(0, i, 0, 0);

strip.show();

delay(15);

}

// 用if写呼吸灯，控制第二个灯

i+=gap;

if (i >= 255 || i<=0) {

gap = -gap;

}

strip.setPixelColor(1, i, 0, 0); //设置彩灯编号和颜色，颜色为RGB值或十六进制色彩值

strip.show();

delay(15);

}