两个7段共阳LCD显示器，可以调整倒计时时间

显示驱动芯片HT1621的C51底层程序-display driver chip HT1621 the bottom procedures C51

基于proteus模拟仿真的单片机开发实例，很简单，很实用，供大家参考学习-Proteus simulation based on microcontroller development examples, very simple and very practical, for your reference study

超声波检测C代码源程序，单片机嵌入式软件程序设计-Ultrasonic testing C code source, single-chip embedded software programming

ADC0809做的数字电压表，0-5V，4个LED直接接单片机做显示，动态扫描写的驱动-ADC0809 do the figures in Table 0-6 voltage- 5V, 4 LED SCM done directly, dynamic scan was driven

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

MPXA6115A程序测量大气压强 开发环境是在MSP430单片机下-Procedures for measuring atmospheric pressure MPXA6115A development environment is under the single-chip MSP430

头件的中的#ifndef，这是一个很关键的东西。比如你有两个C文件，这两个C文件都include了同一个头文件。而编译时，这两个C文件要一同编译成一个可运行文件，于是问题来了-The first pieces of# Ifndef, this is a very key things. For example, you have two C file, the two C files include the same file size. And compile-time, the two C files to compile together into a run file, then issue the

单片机的24C02读写程序,使用Keil c编译器测试正常。-the 24C02 microcontroller literacy, the use of Keil c compiler tests are normal.

麦迪工作室51开发板LCM1602液晶屏驱动代码。可点亮1602液晶屏。-Madison Studio 51 development board LCM1602 LCD driver code. 1602 LCD screen can be lit.

CS5532及cs5550的测试程序,包含器件校准,配置等-CS5532 and cs5550 test procedures, including calibration device, configuration, etc.