利用单片机串行口，实现两个实验台之间的串行通讯。其中一个实验台作为发送方，另一侧为接收方。发送方读入按键值，并发送给接收方，接收方收到数据后在LED上显示-Use of single-chip microcomputer serial port, the realization of serial communication between the two test bench. One of the test bench as the sender, the other side of the