两个单片机板子进行通信，一个发送程序，一个接受程序。通过发送的程序的板子来控制接受程序的板子,点亮接收程序板子上的第一个发光二极管。-Two microcontroller board to communicate, a sender, an accepted procedure. Sent by the board to accept a program to control the program' s board, the first light-emitting diode on