Hellow guys, Welcome to my website, and you are watching [디지털회로실습] 1. 스위치 회로 구성하여 LED 점등하기. and this vIdeo is uploaded by SyncSignal싱크시그널 at 2021-03-14T04:01:35-07:00. We are pramote this video only for entertainment and educational perpose only. So, I hop you like our website.