利用单片机、HD7279、键盘，实现计时器、倒计时器。

在AVR上实现USB的功能，是模拟出的USB-In the AVR to achieve USB functionality of USB is to simulate the

学习例程，共有100例，测试成功，在此上传工大家学习提高-Learning routines, a total of 100 cases, testing the success of workers in this upload them to learn to improve

编程爱好者，自编C程序跑灯，控制单片机P1口，逐个点亮心中的明灯-Programming enthusiasts, self-compiled C program running lights, control Singlechip P1 mouth, one by one lit the hearts of the light

VB与S7200的PPI通信-VB and the PPI communications S7200

develop develop develop develop develop develop -develop develop develop develop develop develop develop develop develop develop develop develop

一个4X4的键盘程序设计，希望能对大家有一定的帮助-A 4X4 keyboard programming, I hope everyone can have some help

闪烁灯广告灯的左移右移 ． 8X8 LED点阵显示技术等共40个实验-Flashing lights advertising lights left shifted to the right. 8X8 LED dot matrix display technology, a total of 40 experiments

硬盘、u盘、mmc、cd-rom mp3播放器源码-Hard drive, u disk, mmc, cd-rom mp3 player source code

avr gcc uart source code examples-avr gcc UART source code examples

ADC0809是带有8位A/D转换器、8路多路开关以及微处理机兼容的控制逻辑的CMOS组件。它是逐次逼近式A/D转换器，可以和单片机直接接口。 -ADC0809 is an 8-bit A/D converter, 8-way multi-switch and microprocessor compatible control logic of the CMOS components. It is a successive approximation type A/D converter, single chip can interface directly.