触发信号装置

#define pinled    13  //出发引脚13号引脚
#define delaytime 1000//每多少毫秒触发一次

void setup() 
{
  pinMode(pinled, OUTPUT);
}


void loop() {
  digitalWrite(LED_BUILTIN, HIGH);   // turn the LED on (HIGH is the voltage level)
  delay(delaytime/2);                       // wait for a second
  digitalWrite(LED_BUILTIN, LOW);    // turn the LED off by making the voltage LOW
  delay(delaytime/2);                       // wait for a second
}