nhin mach cua ban hay day! minh chi co gop y nay thoi! bo tao xung dung bo dinh thoi 555 can su dung 1 bien tro cho no! cau cu tim datasheet cua NE 555 la ok! ban dung bien tro thi ban se co the dieu chinh duoc do rong cua xung phat ra tu 555 do do ban co the dieu chinh sang toi cua den dc! chuc thanh cong! dttcong88@gmail.com




215Cảm ơn
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