clock

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)

单片机音频通信9170和9200，接收发送源程序(9170 and 9200 microcontroller audio communication, the receiver sends source)

基于单片机和C语言的，步进电机加速减速匀速演示，希望方便大家(Based on SCM and C language, stepper motor acceleration and deceleration uniform presentation, I hope to facilitate)

说明：  独居老人监控系统 使用80c51f020编程 具体的使用方法和接口，里面有(Elderly people living alone monitoring system using 80c51f020 programming methods and the use of specific interfaces, which has)

飞思卡尔CAN扩展帧通信,Can盒发送数据，单片机接受并返回数据(The Carle CAN extended frame communication, Can box to send data, the microcontroller to accept and return data )

本书是“国际电气工程先进技术译丛”之一，该书分14章，介绍了各种大功率变频器的拓扑结构及原理、传动系统的组成，以及与此相关的各种先进控制策略。书中还同时详细地给出了多个专题的相关技术背景。可作为学术研究、产品开发等专业技术人员或产品工程师参考。介绍了大功率变频器及中压交流传动的最新发展技术，包括各种大功率变频器拓扑结构、脉冲调制方法、先进控制策略以及工业产品设计经验。包括250多个图表，对所有的主要理论和控制方法都给出了计算机仿真结果和试验波形。对实际产品设计和工业应用中各种问题，书中也进行了介绍。(This book is one of the "international electrical engineering advanced technology translations", the book chapter 14 points, this paper introduces all kinds of high-power inverter topology and principle, the components of the drive system, and the related all kinds of advanced control strategy.Is also given in detail in the book more than one project related technical background.Can be used as an academic research, product development and other professional and technical personnel, or product engineer reference.High-power inverter are introduced and the latest development of medium voltage ac drive technology, including all kinds of high power converter topology, pulse modulation methods, advanced control strategy and industrial product design experience., including more than 250 chart for all the major theories and control methods are the computer simulation results and experiment waveforms are given.For all kinds of problems in the actual product design and industrial application, th)

pcf8563 lcd1602 ds18b02 stc89c52rc对系统精确定时 报警 采集温度(pcf8563 lcd1602 ds18b02 stc89c52rc precise timing of the alarm system collected temperature)

这个程序可以实现两个单片机之间双向通信的功能。(This program can realize the function of two-way communication between two microcontrollers.)

通过MFC实现上位机与下位机的串口通讯，可自配置。(Through MFC to achieve the host computer and the next bit machine serial communication, self configuration.)

1单片机 控制直流电机转速 PID算法+C语言程序+Proteus仿真 采用PID控制算法控制电机转速，使得电机实际转速与设定转速保持一致。(1 MCU control DC motor speed PID algorithm+C language program+Proteus simulation using PID control algorithm to control motor speed, so that the actual motor speed and the set speed consistent.)