PCF8563 的驱动程序，用两个普通的IO口模拟I2C总线，包括100KHZ（T=10US）的标准模式选择和400KHZ的快速模式选择，默认11.0592MH...

16X16点阵电子显示屏汉字的显示源程序，在keil环境下使用普通单片机实现。-16X16 dot matrix display source electronic display Chinese characters in keil environment, the use of ordinary MCU.

C51单片机实现红外探测 可以探测是否有障碍物及入侵者 数据通过串口格式化 38 KHZ载波-C51 MCU infrared detectors can detect whether there are any obstacles and invaders through serial data format 38 kHz carrier

按键扫描 51单片机加8279 8279通过74LS 138译码器扩展4×4键盘、6位显示器。 由3-8译码器对SL0～SL2译出键扫描线，由另一3-8译码器译出显示器的位扫描线，并采用了编码扫描方式。 为了防止出现重键现象，扫描输出线高位SL3不参加键扫描译码。CPU对8279的监视采用了查询方式，故8279的中断请求信号IRQ悬空未用。 -Scan button 82,798,279 plus 51 single-chip decoder 74LS 138 through the expansion of 4 × 4 keyboard, the display 6. From 3-8 decoder SL0 ~ SL2 translated to the key scanning line, by another 3-8 decoder translated display scan line, and uses code scanning. In order to prevent the emergence of the phenomenon of re-key, scan the output line does not take part in high level SL3 scan decoding keys. CPU on the 8279 surveillance using the query mode, the 8279 interrupt request signal IRQ left unused.

atmega128串口通信程序，与PC机通信的驱动-atmega128 serial communication program, and PC communication drivers

AT89C2051驱动步进电机的电路和源码, 源码为C语言.-AT89C2051 stepper motor drive circuits and source code, source code for the C language.

AVRMEG32编写的一个项目代码,里面包含一般应用的模块.-AVRMEG32 the preparation of a project code, which contains the general application of the module.

数码管显示，希望和 大家交流，将这个程序进行该进。-Digital tube display, hopes and U.S. exchanges, will this process of the Progressive.

数字电压表设计，单片机AT89S51与ADC0809设计，能够测量0－5V之间的直流电压值，四位数码显示。完整的C语言代码和电路图-Digital voltage meter design, microcontroller AT89S51 with ADC0809 design, capable of measuring between 0-5V DC voltage value, four digital display. Complete C language code and circuit diagram

8bit adc This program is free software you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation either version 2, or (at your option) any later version.-8bit adc This program is free software you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation either version 2, or (at your option) any later version.

如何为keil c51编写仿真机的驱动程序-how to prepare simulator decoder drivers