GPL162001 voice recording and playback of the demo program

谐波计算，用用也不错，大家可以试一试。不好用也别找我啊-Harmonic basis, with use it as well, everyone can try. Bad do not use me ah

有电路图和程序,都是正确的.如果有问题可以到我的博客 去留言,大家相互学习-A circuit diagram and procedures are correct. If the problem can go to my blog to the message, we learn from each other

单片机的好教程，新手的好老师。简单易懂，赶快下啊！-Singlechip good tutorial, good novice teachers. Easy-to-read, as soon as possible under the ah!

SN75176,用51系列的单片机，波特率为9600，串口方式1，发送数据-SN75176

两个7段共阳LCD显示器，可以调整倒计时时间-A total of two 7-yang LCD display, you can adjust the countdown time

用数码管和4X4键盘做的简易计算器,有protuse原理图和程序-4X4 digital control and the keyboard to do simple calculator, a schematic diagram and procedures protuse

本程序又是一个单片机的简单例程，含电路图及C程序，可参考-This procedure is a simple and routine single-chip, including circuit diagrams and C procedures, can be found! !

proteus仿真的单片机串口通信，请使用虚拟串口软件模拟串口调试，该软件我已经上传。-Proteus simulation of single-chip serial communication, use the virtual serial port serial debugging software simulation, the software I have already upload.

液晶显示器LM24064的驱动程序，可能支大家有点帮助。-LM24064 LCD driver may support a bit to help everyone.

液晶ATM12864D的驱动程序，应该也可以驱动其他类似的12864液晶，绝对精简，只含ASCII码显示，汉字可自己写，我开发的系统就是用的这个驱动，很实用-ATM12864D LCD driver should be able to drive other similar LCD 12864, absolutely streamlined, containing only ASCII code display, to write Chinese characters can be their own, I developed systems that use this driver, it is practical