著名的CS5463抄表模块，带无功计算。

基于HS108设计的红外水位检测仪，内含C源代码，原理图及PCB，稍作改动可以用于很多位置检测场合如油泵位置检测等。-HS108-based design of infrared detector water containing C source code, schematics and the PCB, to make a minor amendment can be used for position detection in many occasions, for example, pumps and other position detection.

这是一个c8051F020单片机通讯程序，请各位大侠，看了后多提宝贵意见。-C8051F020

8279初始化以程序，键盘处理程序以及显示子程序-8279 initialization procedure, keyboard and display processing subroutine

AT89C52的组合按键识别程序,已经调试成功-AT89C52 combination of keys identification procedures have been successfully debug

基于PIC16F877的秒表源码，驱动LED数码管，MPLAB编译环境。-PIC16F877-based source of the stopwatch, drive LED digital tube, MPLAB compiler environment.

i2c到os/2

51单片机基础驱动源码，有12864液晶和超声波收发源码及DS18B20温度传感器驱动源码等-51 SCM-based driver source code, there are 12864 LCD, and send and receive ultrasonic source and DS18B20 temperature sensor-driven source code, etc.

AVRandSED1520（ATMEGA32显示驱动和原理图）； -AVRandSED1520 (ATMEGA32 display driver and the schematic diagram)

红外遥控具有抗干扰能力强，信息传输可靠，功耗低，成本低，易于实现等显著优点-Infrared remote control with a strong anti-interference, information transmission, reliable, low power consumption, low cost, easy to realize significant advantages such as

在p1.0上产生一个占空比变化的脉冲信号，它产生的脉宽调制信号用于电机的变速控制-err