// MCU BASIC: https://www.basic4mcu.com
// DateTime : 2019-06-10 오전 10:21:52
// by Ok-Hyun Park
//
bool inflag=0,outflag=0;
//
void loop(){
  if(digitalRead(2)){
    if(inflag==0){ inflag=1;
      outflag^=1;
      if(outflag)digitalWrite(8,HIGH);
      else       digitalWrite(8,LOW);
      delay(100);
    }
  }
  else{
    if(inflag){ inflag=0;
    delay(100);
  }
}