Chuyen doi truyen thong RS232-RS485

[trantruong3789]

Cac cau xem de tai cua to vua nhan duoc lam do an: Viet chuong trinh dieu khien chuyen doi cong RS232-Rs485.
Cau nao biet giup goi y cho minh lam voi, minh chua hieu lam