本连载上期介绍了步进电机、温度传感器、四路无线收发模块与51学习板电路的连接及相关的配套程序,本期介绍汉字显示模块、直流电机与学习板电路的连接及相关配套程序。函授学员可参考本文做有关模块实验,并通过修改程序中的指令来观察实验结果的变化,在实验过程中不断提高自己的51单片机应用及编程能力。 This series of last introduced stepper motor, temperature sensor, four wireless transceiver modules and 51 learning board circuit connection and related supporting procedures, this issue introduces Chinese display module, DC motor and learning board circuit connection and related supporting procedures. Correspondence students can refer to this article to do the relevant module experiments, and by modifying the program instructions to observe the changes in experimental results, and constantly improve their 51 single-chip applications and programming skills in the experiment.