并行口键盘显示电路，单片机课程设计，有PROYUES仿真-Parallel port keyboard display circuit, single-chip design, there PROYUES Simulation

利用单片机AT89C51设计的计算器，其中包括用PROYUES仿真的电路图和用汇编语言编写的汇编程序。-AT89C51 microcontroller designed for the use of calculators, including the use PROYUES circuit simulation and the use of assembly language written in assembler.

对于以太网的大家都很熟悉了，怎么利用以太网去监考一些现场的设备呢，这里上传了有关以太网的一些详细资料，可更大家学习，带有PROYUES仿真。-Ethernet, we are all familiar with how to use Ethernet to the examiner some live equipment, upload some detailed information about Ethernet, and can be more to learn.

ADC0808才几点呀 数字电压表程序,和PROTUES仿真元原理图。 数码管显示，(ADC0808 What time is the digital voltmeter program, and PROTUES simulation meta diagram.)