// MCU BASIC: https://www.basic4mcu.com
// DateTime : 2019-06-03 오전 7:48:48
// by Ok-Hyun Park
      //
      if(neo1_cnt<=255){
        fade1=neo1_cnt;
        for(int z=0; z<=24; z++)strip.setPixelColor(z,strip.Color(fade1,0,0));
      }
      //
      else{
        if(val==0){ neo1_cnt=511; }     //인체 감지 안된경우 네오픽셀 멈춤
        else{                           //인체 감지 된 경우 네오픽셀 다시 작동해서 빛이 점점 줄고
          if(++neo1_cnt>511)neo1_cnt=0; //511까지 증가한 후 0으로
        }
        fade1=511-neo1_cnt;
        for(int z=0; z<=24; z++)strip.setPixelColor(z,strip.Color(fade1,0,0));
      }
    }
    //
    strip.show();
  }
}