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1 Results for "《 예약문의 OIO↗8489↗8306》강남가라오케‰강남가라오케opening가라오케가라오케사이즈가라오케사이즈younger 청담가라오케ⓑ ↙가라오케추천copyright"
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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