mems

基于单片机STC89C51和74LS164的多功能数字万用表(Based on microcontroller STC89C51 and 74 ls164 multi-function digital multimeter)

proteus仿真，以LPC2138芯片为核心生成PWM波，控制升压斩波电路（PWM），实现稳定的高电压输出。包含AD转换、串口通信。(proteus simulation. This design use PWM wave generated by LPC2138 to control boost circuit and realized a steady high voltage output. ADC and serial port communication are involved in the design.)

说明：  单片机通过ADC0832在lcd1602显示电压数值。(The single chip computer displays the voltage value in LCD1602 by ADC0832.)

多功能液晶显示数字钟，可以在Nokia5110液晶上实时显示时间点、温度、闹钟点，在待机界面上可以滚动显示中文标题，菜单选项也比较新颖(Multi-function LCD digital clock that can display real-time, temperature, alarm points Nokia5110 LCD on the standby screen to scroll the display Chinese title, menu options are relatively new)

华为智能光伏电站解决方案设计图纸，包括子阵布局，逆变器，选配件，无线部分，监控系统，逆变器安装，一次系统等(HUAWEI smart photovoltaic power plant solutions design drawings, including sub array layout, inverter, accessories, wireless parts, monitoring system, inverter installation, a system, etc.)

说明：  通过四个半加器的互联，来实现四位加法器的电路结构(Through the interconnection of four and a half adder to achieve the four adder circuit)

单片机数码管测试程序（非常不错的单片机学习程序）(Single chip digital test program (very good))

zigbee document upload 23/7/2019

《无线通信系统仿真--C++实用模型》一书的配套源代码，里面包含了，通信系统的所有模块，对学习通信和C++有很好的借鉴()

6U CompactPCI PCB 模板，使用工具为Altium Designed 9(PCB template of 6U CompactPCI with Altium Designed 9)