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1 Results for "∇ 최저가 Ò1Ò《⑤⑦93》74⑸⑻ ∇뉴테란셔츠룸Ζ삼성동뉴테란scorn뉴테란셔츠룸강남뉴테란선릉뉴테란always 삼성동뉴테란ㆂㅣ뉴테란셔츠룸swiftly"
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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