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1 Results for "↘ 최저가 Ò1Ò〈⑻⑷89〉83Ò⑥ ↗ 강남쓰리아워㉵ 강남쓰리아워rest강남쓰리아워ル쓰리아워가격obs 강남술집정보ㅈ쓰리아워가격¤강남쓰리아워I─쓰리아워가격minute"
No Touch Hand Washing Countdown Timer
Project
by
Paul McCabe
A simple 20 second no touch countdown timer using and Arduino UNO, an HC-SR04 Ultrasonic sensor and a 7 segment display.
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