1 Results for "《 예약문의 OIO≡⑧④89≡83O⑥》강남드림ㅮ강남드림within강남드림드림레깅스룸강남드림레깅스룸horrid 드림레깅스룸ギ∑드림레깅스룸thorough"

In this period of isolation, I'm trying to build an oximeter with parts already in house. An oximeter is made by two leds and a photodiode.