avrbootloader

电子温度计，可以准确的测量当前的温度，经过长时间的测量，误差不到1度(Electronic thermometer, you can present an accurate measurement of temperature, after a long period of measurement error less than 1 degree)

可以产生幅度、频率可调的方波，频率50hz到1M(Can produce the amplitude, frequency adjustable Fang Bo, frequency of 50Hz to 1M)

1.44寸显示屏显示资料，可显示汉字，图片，彩色图片，带取模软件(1.44-inch display screen display data, can display Chinese characters, pictures, color pictures, with the module software)

Using MSChart Object to show data on form

说明：  在编写程序时，遇到温度检测，则调用读温度软件包(In programming, temperature detection, call packages, read the temperature)

at89c2051利用74ls164 驱动 共阳极数码管(74ls164 driver to use a total of at89c2051 digital tube anode)

51单片机的学习，8*8点阵的有关程序编程(51 MCU learning, about 8* 8 dot matrix programming)

加速度传感器很好用的，，可以移植的，你可以学习下，写的也不容易呢(Using an acceleration sensor,, you can refer to him,, a good, satisfying transplant)

单片机万历年电子钟Chip electronic bell million years(Chip electronic bell million years)

本节所给出主程序功能为51单片机从USB总线读取两个字节数据，计算两个数据的和。另外本文还给出了CH372的主端点、辅助端点之间数据上传下传的子程序，供读者参考。(The main function of this section is given as 51 microcontroller reads the two bytes of data the USB bus, two data and computing. This article also gives additional primary endpoint between the auxiliary endpoints CH372 Uploaded data transfer routines, for reference)