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矩阵键盘密码锁+简易计算器，C52的单片机平台，C语言开发，适用于初学学习。(Matrix keyboard lock+ simple calculator, C52 MCU platform, C language development, suitable for beginners to learn.)

基于stm32的adc数据采集系统，dma传输技术(based on stm32 adc capture system,dma transmit)

说明：  avr单片机学习程序，可供新手学习基础编程(avr single-chip learning process for novice programmers to learn the basis of)

PCB设计工具，PROTEL 转 POWERPCB工具，方便的PCB转换工具，很实用！(PCB design tools, PROTEL to POWERPCB tools, PCB convenient conversion tool, very useful!)

msp430的温度传感器力天电子板子上移植(The temperature sensor msp430 electronic board on the day of transplantation Force)

用c语音编写的超声波测距的源代码，可以实现超声波测距的界面c语言编程(C speech prepared by ultrasonic distance of the source code, you can achieve ultrasonic distance c programming language interface)

说明：  基于16位ADC，AD7705的称重系统设计，以单片机89s52为数据处理和控制模块，1602为显示模块(Precision Weigh Scale Design Using the AD7192, 24-Bit Sigma-Delta ADC with Internal PGA, as AD converter and MCU 89s52 as data processer and controller)

16x2 LCD connection code, 8-bit connection, for 8051 processors

iOS 网络状态监测。网络实时检测，用到Reachability（自行下载）,需加框架:SystemConfiguration.framework ios程序需要用到网络检测，有些程序是刚启动时检测一次，而有些则从头到尾检测网络状态。(IOS network status monitoring.Real-time detection and Reachability (download), frame: SystemConfiguration.framework IOS programs need to use network detection, some detection once when the program is launched, while others detect the network status start to finish.)

无刷电机驱动程序 霍尔传感器 PID算法调节(Brushless Motor Driver Hall sensor PID algorithm)