硬触发

 

在线代码

https://www.23bei.com/tool/7.html

 

 

 

代码

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int pin_sign1=4;   void setup() {      pinMode(pin_sign1, OUTPUT);   digitalWrite(pin_sign1, LOW);    delay(1000);         }     void loop() {   digitalWrite(pin_sign1, HIGH);    delay(6);                       digitalWrite(pin_sign1, LOW);     delay(10);                       }