有急于51单片机IIC的操作讲解，和at24c02的一些基本资料，和IIC读写基本操作！

在微机上模拟I2C总线的设计中，用并行口的D0（PIN2）模拟SCL信号，用D1（PIN3）模拟SDA信号。根据IIC总线的电平规范 -Computer simulation on the design of I2C bus with a parallel port D0 (PIN2) Analog SCL signal, with D1 (PIN3) Analog signal SDA. According to the IIC bus specification level

lcd 1602 实现简单的字符显示,共大家学习参考.-lcd 1602 show that the realization of simple characters, a total of U.S. study reference.

这是用单片机实现的多功能数字钟,通过8255扩展端口,AD0809将模拟信号转换成数字信号进行处理,可以比较精确的测出电压值.-This is the MCU multifunction digital clock, through the 8255 expansion port, AD0809 a conversion of analog signals into digital signal processing, more precise measuring the voltage values.

NRF905无线收发模块详细资料，其中的源码本人已测，让初学者也能迅速入门。-Wireless transceiver modules NRF905 detailed information on the source of which I have measured, so that beginners can quickly entry.

基于51单片机的红外传感计数和无线发送程序-Single-chip based on 51 counts of infrared sensing and wireless sending procedures

工频参数测量 megal128 单片机 iccavr开发环境-Parameter Measurement Frequency megal128 Singlechip iccavr Development Environment

MSP430FG43x系列单片机汇编源代码-MCS MSP430FG43x source code compilation

电机驱动！四相五线的步进电机用C8051F020驱动-Motor drive!

非常详细的PS_2数遍与键盘协议，英文版，附有中文版对照，译者十分详细，是不可多得的PS_2协议资料-PS_2 very detailed agreement several times with the keyboard, in English, with Chinese version control, the translator is very detailed, it is rare agreement PS_2 information

ARM LPC2103下的LCD12864驱动程序，直接采用ARM的SPI0功能，开发环境为ADS，工程可以下载直接使用。-ARM LPC2103 under LCD12864 driver, direct the use of ARM s SPI0 functionality, development environment for the ADS, the project can be downloaded directly used.