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anh bac ah,em dang lam quang bao giao tiep voi may tinh. anh cho em hoi la neu tren vb minh danh chu a, va tao ma led de truyen xuong pic thi duoi pic co can ma led chu a nua khong, no co so sanh voi data truyen tu pc xuong khong.em chi truyen mot chieu tu pc xuong pic thoi.
mong hoi am cua anh.
cam on anh nhieu
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