arduino控制IC为WS2811的12伏LED灯条，做跑马灯，灯条裁智短了如何立刻做到循环？
#include <Adafruit_NeoPixel.h>#define PIN 5 //＃定義6 PIN
Adafruit_NeoPixel strip = Adafruit_NeoPixel(85, PIN, NEO_GRB + NEO_KHZ800);
int redled2=11;
int redled=10;
int yellowled2=9;
int yellowled=8;
int greenled2=7;
int greenled=6;
int yellowpin=4;
int greenpin=3;
int redpin=2;
int red;
int yellow;
int green;
void setup()
{
strip.begin();
strip.show(); // Initialize all pixels to 'off' strip.show（）; //初始化所有像素“關”
pinMode(redled2,OUTPUT);
pinMode(yellowled2,OUTPUT);
pinMode(greenled2,OUTPUT);
pinMode(redled,OUTPUT);
pinMode(yellowled,OUTPUT);
pinMode(greenled,OUTPUT);
pinMode(13,OUTPUT);
pinMode(14,OUTPUT);
pinMode(15,OUTPUT);
pinMode(redpin,INPUT);
pinMode(yellowpin,INPUT);
pinMode(greenpin,INPUT);
}
void loop()
{
red=digitalRead(redpin);
yellow=digitalRead(yellowpin);
green=digitalRead(greenpin);
if(red==LOW)RED_YES();
if(red==HIGH)RED_NO();
}
void RED_YES()//感应到人
/*{digitalWrite( redled,HIGH);
digitalWrite( redled2,HIGH);
digitalWrite(13,HIGH);
delay(1000);
clear_led();
}*/
{ colorWipe(strip.Color(255, 0, 0), 1);
}
void RED_NO()//无感应到人
{ //空隙環（）{
rainbowCycle2(5);//5速度，越细越快
}
void rainbowCycle2(uint8_t wait) //無效rainbowCycle（uint8_t有等待）{
{
uint16_t i,j;
//uint16_t i,j;
for(j=0; j<256; j++)
{ // 5 cycles of all colors on wheel 對於（J = 0;Ĵ<256 * 5; J ++）{// 5個週期輪上的所有顏色
for(i=0; i< strip.numPixels(); i++)
{ //對於（i = 0;我<strip.numPixels（）;我++）{
strip.setPixelColor(i, Wheel(((i * 256 / strip.numPixels()) - j) & 255)); // -i正转，+i 反转。+j前细后大，-j前大后细
}
strip.show();
delay(wait); // 延遲（等待）;
}
}
uint32_t Wheel(byte WheelPos) { //uint32_t的車輪（字節WheelPos）{
// WheelPos = 255 - WheelPos;
if(WheelPos < 30)//拖尾长度
{ //WheelPos = 100; //如果（WheelPos <85）{
return strip.Color( 255 ,WheelPos , WheelPos ); //前跑馬灯颜色
}
else
{ // }其他{
// WheelPos -= 170;
return strip.Color( 0, 0, 0); //背景灯光颜色
// return strip.Color(WheelPos * 3, 255 - WheelPos * 3, 0); // 返回strip.Color（WheelPos * 3，255 - WheelPos * 3，0）;
}
}
void colorWipe(uint32_t c, uint8_t wait) { //無效colorWipe（uint32_t的C，uint8_t有等待）{
for(uint16_t i=0; i<strip.numPixels(); i++) { //對於（uint16_t我= 0;我<strip.numPixels（）;我++）{
strip.setPixelColor(i, c);
strip.show();
delay(wait); // 延遲（等待）;
}
}
怪不得，你把灯条都截断了，那么硬件也改变了呀。想重新循环就要改动程序了！ 嗯嗯！谢谢！
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