基于at89c51snd1cMP3源程序

uCOS在51系列MCU上移植的源代码，包括uCOS内核以及用户应用程序例子。无密码，包运行。-uCOS in 51 MCU transplant source code, including uCOS kernel and user application examples. No password packet operation.

插入式系统初步编程，取

51单片机开发的双路冷气机自动切换报警控制器-51 MCU development of dual air-conditioning automatically switch alarm controller

基于SHT71数字温湿度传感器的采集实现，89c51-SHT71 digital temperature and humidity sensors based on the collection of achieving, 89c51

红外线IR在单片机中的应用及原理-infrared IR in SCM Application of Principle and

c8051f020 lcd 简单应用程序-c8051f020 lcd simple application

八路抢答器，有计时功能，计分功能当有选手抢答时可以显示台号-Octal Responder, with time-keeping. Scoring function

本系统主要用于旅游景点记录游客人数，并限制旅客的流量。采用红外传感器通过检测人体红外并对通过人数进行计数，通过红外对管将检测到的数据发送至单片机，单片机处理后送至数码管显示，数码管显示的数据即为通过的人数，并通过设定值限制旅客数量。当游客超量是系统将给出相应的提示，禁止游客再进入。以更好的保护旅游景点的生态环境。-This system is mainly used for tourist attractions recording the number of visitors and limit the flow of tourists. Use of infrared sensors by detecting the human body by infrared and number of people count on the tube will be detected by infrared the data sent to the MCU, MCU after treatment sent to the digital LED display, digital LED display of the data shall be the number of through and through setting limits the number of passengers. When the visitors over-the system will give the appropriate prompts to prohibit visitors from re-entering. To better protect the tourist attractions of the ecological environment.

//串行驱动led显示， //一个74hc595位移寄存器驱动三极管驱动led位， //两个74hc595驱动led段，方式位5位x8段x2=10个数码管 //5分频，每次扫描时间位1.25ms-//Serial Driver led,// a 74 hc595 displacement Driver Register triode-led drive,// 2 74 hc595 led drive, 5-way x8 of x2 = 10 digital control// 5 frequency, each scan time-1.25ms

口调试助手源程序AVR单片机在线编程下载线电路图,PCB图及HEX文件.zip- The mouth debugs the assistant source program AVR monolithic integrated circuit on-line programming downloading line circuit chart, the PCB chart and the HEX document zip