1 Results for "《〈 문의 OIO↗5793↗7458 》〉 선릉초콜릿ц ㅶmeanwhile⑥선릉초콜릿강남초콜릿ㄻgrim 선릉초콜릿강남셔츠룸초콜릿 초콜릿셔츠룸↑선릉초콜릿ьles８"

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.