PIC16F877shiyongjiaochen

本例程是基于1602液晶显示实时时钟，使用DS1302，使用51系列单片机，通过本例程可以熟悉1602和1302的操作，适合单片机课程设计或者毕业设计的一项功能，程序编译通过可直接移植使用(This routine is based on the 1602 LCD real-time clock, use the DS1302, use 51 series, through this routine may be familiar with the operation of 1602 and 1302, for SCM curriculum design or a functional design Graduation, a program compiled through direct transplantation use)

说明：  NB-IOT智能燃气表用以实现燃气表的物联网功能(Nb-iot smart gas meter is used to realize the Internet of things function of gas meter)

说明：  比例谐振控制程序，PR控制可用于控制系统中输入量为非常值量的控制。(请键入文字或网站地址，或者上传文档。 取消 Bǐlì xiézhèn kòngzhì chéngxù,PR kòngzhì kěyòng yú kòngzhì xìtǒng zhōng shūrù liàng wéi fēicháng zhí liàng de kòngzhì. 帮助我们改进 Google 翻译Proportional resonant control procedures, PR control can be used to control the system input volume control for very value.)

AVR单片机m48 8m晶振，片内adc转换c程序 (AVR Singlechip m48 8m crystal, chip adc conversion c procedures)

说明：  STM32控制AD9954产生正弦波等波形，频率幅值可调，包含两篇论文。(STM32 controls AD9954 to generate sinusoidal wave and other waveforms with adjustable frequency amplitude, including two papers.)

在keil环境下实现stc12c5404单片机控制停车场道闸程序，包含有起杆，落赶，中停。防撞，防爬，防碰功能，具有红外压力波保护(Environment to achieve stc12c5404 in keil Parking Barrier SCM program, contains from pole, down in time, in the stop. Crash, anti-climb, anti-collision function, the pressure wave with infrared protection)

基于stm32f103的mqtt完整通信的例子，支持TLS加密通信(An example of mqtt complete communication based on STM32F103 supports TLS encrypted communication)

说明：  nRF24Z1说明文档，一颗可以直接传CD音质的2.4G IC(nRF24Z1 specification,one 2.4G IC to transport the CD qulity data)

用C语言实现matlab的butter函数中低通和带通功能,高通和带阻没写,有兴趣的可以自己加入.(Using C language to achieve matlab butter function low-pass and band-pass function, high pass and band stop did not write)

ZIGZAG cohesive law for dmage growth in composite materials article.Very helpful.