4.3 A/D转换实验......................................................................................................................63 4.4 D/A转换实验......................................................................................................................65 4.5 键盘扫描及显示设计实验...................................................................................................67 4.6 电子发声设计实验...............................................................................................................71 4.7 点阵LED显示设计实验.......................................................................................................74 4.8 图形LCD显示设计实验（选配）.......................................................................................76

第5章 单片机控制应用实验.......................................................................................83

5.1 步进电机实验.......................................................................................................................83 5.2 直流电机PWM调速实验.....................................................................................................85 5.3 温度闭环控制实验...............................................................................................................87