1 Results for "↘ 최저가 Ò1Ò〈⑻⑷89〉83Ò⑥ ↗ 강남쓰리아워㉵ 강남쓰리아워rest강남쓰리아워ル쓰리아워가격obs 강남술집정보ㅈ쓰리아워가격¤강남쓰리아워Ｉ─쓰리아워가격minute"

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