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通过把开机次数记录在24C02中，并在数码管上显示出来， 124C02的写保护脚为低电平，即允许写(Boot number of records in the 24C02, and displayed on the digital 124C02 write-protect pin is low, that is allowed to write)

数码管显示当前温度程序 适用于CC100C，若数码管上电后有残影，请将液晶显示器拔下后重新上电(Digital tube displays the current temperature procedure applies to CC100C, if the digital control power after stuttering, please unplug the LCD monitor and re-power)

超声波测距，能够实现汽车防撞系统超声波的测距，完全由51单片机控制(Ultrasonic Ranging)

430 单片机的i2c程序，430有i2c集成(this is an I2C program of 430)

汽车华容道，实现汽车华容道各种布局的路径的解法。(Car Huarong, Huarong realize various automotive solution path layout.)

Why your files are not be used? 1.The content is too simple 2.Is not a sourcecode or document 3.lost some files 4.Description is not detailed or not correct 5.Compressed file has password 6.Sourcecode duplicate or already exist

通过反转法循环扫描矩阵键盘，并通过数码管显示数据(By inversion method cyclic scan matrix keyboard, and through the digital display data)

单片微型计算机简称单片机，是典型的嵌入式微控制器（Microcontroller Unit）， 单片机芯片 常用英文字母的缩写MCU表示单片机，单片机又称单片微控制器，它不是完成某一个逻辑功能的芯片，而是把一个计算机系统集成到一个芯片上。(Microcontroller chip microcomputer referred to, is a typical embedded microcontroller (Microcontroller Unit),     Single chip Commonly used letters of the abbreviation indicates MCU microcontroller, microcontroller, also known as single-chip microcontroller, it is not complete a certain logic functions of the chip, but to a computer system integrated into a single chip.)

C8051F320 单片机是 Silabs 公司推出的带 USB Device 接口的增强型 51 单片机，其兼容传统 51 架构，并在此基础上大大增强。基于大多数电子工程师 都熟悉经典的 51 系列及其开发环境， 我们选定这颗 MCU 作为对象进行 USB 开 发，将更多人带入 USB 开发的大门。关于 C8051F320 内部资源详情，请查看 datasheet。 本开发板的重点是针对 USB 应用， C8051F 系列单片机其他外设开 发过程将被简化以节约用户的学习、开发成本(C8051F320 microcontroller is Silabs company launched an enhanced interface with USB Device 51 SCM, which is compatible with the traditional 51 architecture, and greatly enhanced on this basis. Based on most electronic engineers Are familiar with the classic 51 series and its development environment, we have chosen as an object USB MCU Fengyun open Hair, the more people into the USB development door. About C8051F320 internal resources, please see the datasheet. The focus is on the development board USB application, C8051F MCU open other peripherals Hair process will be simplified to save the user s learning, development costs. )

PIC18F2550 sorts of applications made ​ ​ with this beautiful project with 3 source code has comes up all the computer software and computer-related pic assembly software is written in Visual Basic 6