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用89s51做的车辆引导系统,在狭小的长距离单通道时避免会车(89s51 do with the vehicle guidance system, in a small single channel to avoid long-distance truck will)

TI公司的有源滤波器芯片UAF432的CAD软件，方便使用，官网下载(TI' s active filter chip UAF432 CAD software, easy to use, the official website to download)

说明：  Si4730收音机基于STM32F103，通过按键和LCD7565屏自动搜台和手动搜台(The Si4730 radio is based on STM32F103. It searches the platform automatically and manually by keys and LCD7565 screen.)

简单实现呼吸灯功能，希望能帮到有需要的人，也希望各个大佬纠错(Simple realization of breathing lamp function)

密码锁，矩阵键盘，报警防护系统，stm32(key board stm32 stm32 stm32stm32)

有源滤波的介绍，文中详细介绍了几种有源滤波电路图(The introduction of the active filter)

通过STM32处理，对敦泰（FT）触摸IC和汇顶(Goodix)触摸IC在1602的显示屏上显示出坐标，想触哪里 就会显示出具体的坐标出来，应用简单，移植方便灵活。可以移植到WINCE,ARM,STM32，8051单片机中。(The STM32, Duntai (FT) of touch IC and the Department of the top Goodix touch IC in 1602 display display coordinates, to touch where it will show the coordinates of specific, simple application, transplantation is convenient and flexible, can be transplanted to wince, arm, STM328051 microcontroller.)

大华DVR的SDK开发包,包括源码和开发文档.(Dahua DVR SDK development kits, including source code and documentation development.)

芯片库，支持keil环境下搭建NXP系列lpc17xx芯片(Chip library, supporting keil environment to build NXP series lpc17xx chips)

C51通过SL811读写U盘完整例程。包含创建目录、创建文件等。(Example for reading and writing U-Disk through SL811 USB host controller.)