pmsg

说明：  c8051f020图片显示 不复杂 可以自己变换图片 第一次写这类的 不太好大家指出(the c8051f020 picture display pictures online to find the program)

SIM800C升级工具,二次开发工具，省成本的特别好用用的方案(SIM800C upgrade tool)

一个测试Radius的工具,可以测试Radius服务器是否正确(tekradius this is a good test tool)

I2C总线协议应用,利用单片机中断实现可以记忆的时钟,程序自己已经调试过，绝对能用(I2C bus protocol applications, the use of the microcontroller interrupt memory clock, program debugging, and absolutely can)

51单片机程序，两个74HC595驱动8位数码管程序，串行输入，3个IO口控制8位数码管动态扫描(failed to translate)

可实验0.5KHZ到10KHZ的简单测频,并由数码管显示出来!(Experimental 0.5KHZ can be simple to 10KHz frequency measurement by digital tube display!)

单片机串口发送程序，试一次课设做的，非常非常好用(Chip serial transmission program, try again Lesson set, very, very easy to use)

学4年来做过的竞赛以及老师的科研项目所积累下来的c51源代码，一共有40(4 years of study done as well as the Teacher of the competition accumulated research c51 source code, a total of 40)

飞思卡尔比赛资料，不怎么样，大家看看就算了(Freescale game data, not very good, take a look even if the)

气体传感器采样与无线数据传输并发送至电脑 cc2530,多通道数据传输，IAR版本为8.1(Gas sensor sampling and wireless data transmission and sent to the computer cc2530, multi-channel data transmission, IAR version 8.1)