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1 Results for "《 예약문의 OIO↗8489↗8306》선릉드림레깅스룸⒁강남드림레깅스룸moderate드림레깅스룸강남드림강남드림fit 선릉드림레깅스룸㎉⑮선릉드림certain"
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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