1 Results for "《 예약문의 OIO≡⑧④89≡83O⑥》텐하드룸㎼강남텐하드method선릉텐하드선릉텐하드강남텐하드forbidden 텐하드레깅스룸 гε텐하드레깅스룸employ"

An educational project for my mechatronics students, a tube equipped with two LDR sensors to measure the speed of a ball inside the tube.