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1 Results for "《 예약문의 OIO↗8489↗8306》가라오케┦가라오케world선릉가라오케가라오케사이즈청담가라오케promotion 선릉가라오케┫ ∫선릉가라오케decided"
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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