C语言写的日历时间程序。采用51单片机。

51单片机定时器初值计算软件，很有用的工具-51 SCM timer initial calculation software, very useful tool

矩阵键盘检测,用于初学单片机的人了解学习-Matrix keyboard detection for the beginner to learn to understand SCM

MCS51控制1602字符型LCD的源代码-MCS51 control 1602 Character LCD source code

本文以51单片机为例介绍如何扩展USB接口进行对U盘的读写，并详细介绍FAT16、FAT32文件系统的细节以及如何编码实现单片机对文件系统的常用操作，顺带提到一点关于U盘兼容性问题的解决经验。在这里单片机是host，U盘是slave。-In this paper, single-chip microcomputer 51 as an example on how to expand the USB interface on the U disk read and write, and details on FAT16, FAT32 file system and how to encode the details of the realization of single-chip microcomputer used for file system operations, mentioned in passing that on U disk experience compatibility problems. Here is a single-chip host, U disk is a slave.

用单片机AVR控制PCF8563时钟芯片的运行，通过I2C对其进行读写控制！-AVR MCU PCF8563 clock chip to control the operation, through the I2C control of their reading and writing!

2.4G 的通用无线控制，成本低于蓝牙.-Generic 2.4G wireless control, cost less than Bluetooth.

自己的51实习是做得数字时钟，可以调整时间，可以显示当前温度。-51 is doing his internship digital clock, you can adjust the time, you can display the current temperature.

USB(即Universal Serial Bus)是一种通用串行总线。随着技术水平的提高，计算机的广泛应用，人们对串行通信提出了更高的要求。开发一种兼容低速和高速的技术，从而为广大用户提供一种可共享的。可扩容的。使用方便的串行总线成为众多厂商的共同目标。为了实现整个计算机系统中总线的一致性，USB已发布了一种成为通用计算机串行技术规范，简称为USB。-USB (or Universal Serial Bus) is a Universal Serial Bus. With the skill levels improve, the wider use of computers, serial communication of a higher demand. The development of a compatible low-speed and high-speed technology, so as to provide a vast number of users can be shared. May be the expansion. Easy-to-use Serial Bus has become the common goal of many manufacturers. In order to realize the entire computer system bus consistency, USB has released a general-purpose computer serial become technical specifications, referred to as USB.

单片机的Demo，可以在单片机上演奏音乐 用汇编语言的写的

KEIL C几种难得的编程技巧，比如教你如何节约内部RAM等，非常优秀-several rare KEIL C programming skills, such as teach you how to conserve internal RAM, excellent