Matrix-keyboard-lock

msp430教程 讲解430的主要知识以及内部结构等 是学习430必要教程(The msp430 tutorial of 430 knowledge as well as the internal structure of learning 430 necessary tutorial)

设计并制作一个功率可程控的高效率音频功率放大器及其参数的测量、显示装置。功率放大器的电源电压为+12V（电路其他部分的电源电压不限），负载为8Ω电阻。(Audio amplifier)

说明：  HT32F1755单片机基础程序,LCD,延时，定时器等等(HT32F1755 microcontroller-based program, LCD, delay, timers, etc.)

modbus规约通讯测试小工具-工作空间。利用mfc实现modbus串行通信(Modbus protocol communications test tool- work space. Using MFC to achieve MODBUS serial communication )

数码管静态显示源代码，可以直接调入工程使用(Static digital tube display the source code can be directly transferred to the engineering use)

说明：  手消毒器应用，已经用于产品。是先喷消毒液；再进行手烘干。非常好奥(Hand disinfection applications, has been used for products. Is to spray disinfectant further hand drying. Very good Austrian)

该手册是Keil 软件公司8051 单片机软件开发工具的介绍是为新用户和有兴趣的读者准备的使用指南只需要阅读本书就可以正确地运行和使用该软件这本用户指南包括以下章节的内容(The handbook is a Keil software 8051 software development tools introduced for new users and readers interested in the use of guidelines to prepare only need to read this book can be run correctly and use the software that the user s guide includes the following chapters content)

说明：  本程序基于单片机实现RTC实时时钟，简单易懂(The program is based MCU RTC real time clock, easy to understand)

超声波测距（5 28线性处理）,测量线性度很高(Ultrasonic Ranging (528 linear processing), high linearity measurements)

NRF24L01Information Program(NRF24L01 Information Program)