Arduino 交流调光器代码灯泡在闪烁前不发光

我的代码有问题。。。我使用的是带有arduino的交流调光模块，我想让灯亮5秒钟，然后闪烁两次，然后重复

int AC_LOAD = 3;    // Output to Opto Triac pin
int dimming = 128;  // Dimming level (0-128)  0 = ON, 128 = OFF

void setup()
{
  pinMode(AC_LOAD, OUTPUT);// Set AC Load pin as output
  attachInterrupt(0, zero_crosss_int, RISING);  // Choose the zero cross interrupt # from the table above
}

//the interrupt function must take no parameters and return nothing
void zero_crosss_int()  //function to be fired at the zero crossing to dim the light
{
  // Firing angle calculation : 1 full 50Hz wave =1/50=20ms 
  // Every zerocrossing thus: (50Hz)-> 10ms (1/2 Cycle) 
  // For 60Hz => 8.33ms (10.000/120)
  // 10ms=10000us
  // (10000us - 10us) / 128 = 75 (Approx) For 60Hz =>65

  int dimtime = (75*dimming);    // For 60Hz =>65    
  delayMicroseconds(dimtime);    // Wait till firing the TRIAC    
  digitalWrite(AC_LOAD, HIGH);   // Fire the TRIAC
  delayMicroseconds(10);         // triac On propogation delay 
         // (for 60Hz use 8.33) Some Triacs need a longer period
  digitalWrite(AC_LOAD, LOW);    // No longer trigger the TRIAC (the next zero crossing will swith it off) TRIAC
}

void loop() 


{
 {
   int e = 5;
   dimming = e;
   delay(200);
 }
  {
  for (int i=128; i >= 5; i--){
  dimming=i;
  delay(2);
  }

  for (int j=5; j <= 128; j++){
  dimming=j;           
  delay(2); // this value is the light delay timing 
  }
  //delay(3);  // this value is the gap timing 


  for (int i=128; i >= 5; i--){
  dimming=i;
  delay(2);
  }

  for (int j=5; j <= 128; j++){
  dimming=j;           
  delay(2); // this value is the light delay timing 
  }
  //delay(3);  // this value is the gap timing 
  }}

但如果我只使用代码的这一部分和下面的代码。它发光

---

我对编程非常陌生，请帮我解决一下

您观察到的5秒延迟是Arduino的启动时间。Arduinos引导程序将在执行草图之前等待新的固件软件

如果您想让灯亮5秒钟，请更换

delay（200）通过
延迟（5000）
delay（）在循环（）中没有毫秒。您正在
变暗
中写入大量数字。您的编译器可能会优化掉一些写访问，因为——正如编译器所知——没有从变量中读取任何内容。尝试将
暗显
声明为
易失性
，这样每一个更改都会被写入，并且可以被ISR看到。
{
   int e = 5;
   dimming = e;
   delay(200);
 }