0-1knapsack

华中科大第八届的程序 拿了赛区的二等奖 关于飞思卡尔智能车电磁组(sensor group)

利用单片机（STC89C52）为核心结合机械按键、数码管以及稳压器件等电子元器件组装了一个数字时钟，可以实现精准的计时以及修改等功能；(The combination of mechanical buttons, digital tube, and electronic regulator device the microcontroller (STC89C52) as the core components assembled a digital clock, and can achieve precise timing and modify functions )

检测按键和电压,确定直流和交流电的有效值(Check key and voltage)

说明：  芯海芯片 移动电源项目代码 参考示例芯海芯片 实现PD协议 QC 2.0 QC3.0 AFC SCP FCP等充电协议的识别(Project code of core sea chip mobile power supply)

c codevision code for reading a 4x4 keypad and showind the number on a 7segment

12864多级菜单显示程序，包含多种菜单显示程序(LCD12864 LCD multi-level menu program, including a variety of menu display program)

说明：  51单片机控制智能温控风扇，多档调节，pwd调速。包含源码和电路图(51 single chip computer control intelligent temperature control fan, multi-stage adjustment, PWD speed regulation. Contains source code and circuit diagrams)

21天学通51单片机开发源代码，学习51单片机的教材，值得下载(21 Days 51 MCU development of source code, 51 MCU learning materials, worth downloading)

单片机程序 用定时器定时 DA0832实现DA(Microcontroller program to achieve with the timer time DA0832 DA)

说明：  基于51单片机的LED 0-9显示，浅显易懂(LED 0-9 Display Based on 51 Single Chip Microcomputer)