详细介绍T6963C控制芯片资料，全中文显示，点阵液晶显示模块...

基于keilc软件的lcd显示（包括按键扫描）-du to keilc software

C51 HD7279源代码,在项目上应用过.-C51 HD7279 source code applied in the project.

8051串行通信教程

ds1631温度传感器程序，I2C总线的，好用-ds1631 temperature sensor procedures, I2C bus, easy to use

c8051f020单片机Flash存储器AD45DB081-C8051f020 MCU Flash memory AD45DB081

这是一个单片机与MFRC522通信的程序，采用C语言编写。-This is a single-chip microcomputer with MFRC522 communications procedures, the use of C language.

I2C实用源代码。KEIL C51编译器编写。-I2C utility source code. KEIL C51 compiler to prepare.

lcd多级菜单实现，转摘！-LCD achieve multi-level menu, journals!

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.

利用8051单片机驱动蜂鸣器，实现音乐发声功能。-8051 drivers to use buzzers realize music vocal function.