资 源 简 介
使用8255芯片，编写程序控制音乐发生器和LED工作使他们组成声光报警装置，自己设置按键来控制音乐发生器启-The use of 8255 chips, the preparation of program music generator and LED components work so that they sound and light alarm devices, set up their own buttons to control music generator Kai
