说明：  串口通讯类库，功能强大，串口通讯类库，功能强大，串口通讯类库，功能强大，串口通讯类库，功能强大，串口通讯类库，功能强大，
(serial communications library, powerful, serial co mmunications library, powerful, Serial communication library, powerful, serial communications library, powerful,)