串口扩展芯片，可以扩展单片机的串口，使单片机的串口由一个变为3个甚至更多，降低成本。...

电源采样控制，通讯的简单程序，运行环境c51,-Power sampling control, communications, simple procedures, operating environment c51,

触摸屏的工作原理及典型应用，很好的参考资料！-Touchscreen the working principle and typical applications, a good reference!

HD66789R datasheet is very good for TFT examples-HD66789R datasheet is very good for TFT examples...

程序实现A/D转换功能，A/D采用中断方式。该程序通过单片机的RA2模拟通道送入一直流电压

基于MSC51的数字钟。采用PCF8563作为日历芯片，ZLG7290显示和键盘控制。具有5个闹钟源。同时可以修改报时时间和报时音效和LED灯效。-MSC51-based digital clock. PCF8563 chip used as a calendar, ZLG7290 display and keyboard control. Clock source has a 5. At the same time, time can be amended time and time efficient audio and LED lamps.

STC12C5A60S2 具备一般51单片机不可企及的高性能，有片内ADDA，速度是一般51的8倍！-STC12C5A60S2 high speed,low price, with ADDA in chip!

1602字符型液晶屏的c51驱动程序,详情见文件-1602 character LCD screen c51 driver, as detailed in the file

一个IIC接口驱动程序-an IIC Driver Interface

环境测量系统毕业设计大礼包 // 系统一直监测环境光线状况,如果光线太强或者太弱,系统会自动提示 利用61板的KEY3键控制温度测量及语音播报,每按一次KEY3键,61板播放一次温度值及温馨提示,如果光线柔和,同样会播放"光线柔和"-Environmental measurement system design big graduation gift// system has been monitoring ambient light conditions, if the light is too strong or too weak, the system will automatically prompt the use of 61 key control panel KEY3 temperature measurement and voice broadcast, every time KEY3 key board player 61 a temperature value and the gentle suggestion that if the soft light, soft light will also play

本文介绍了一种独特的AVR单片机和计算机进行USB通信的方法-This article describes a unique AVR MCU and USB computer communication methods