红外通讯，能够通过红外线接收和发送数据，性能可靠

用12C887制作的电子时钟,用89C51单片机读取并显示.-12C887 produced with electronic clock 89C51 single-chip reader and displayed.

使用CYAN单片机的ECOG1开发板连接SIM300C的GSM模块开发的短信收发程序.供UART和AT指令编程者参考-using CYAN,sim300c, to send and receive SMS.

用一片ARM芯片，对电网中的谐波信号进行采集，然后通过GPRS发送给上位机，上位机对采集到的电网中的谐波信号进行分析。以确定电网中谐波的情况。-With an ARM chip, the harmonics of the grid signal acquisition, and then sent to the GPRS PC, PC to the power grid of the collection of harmonic signal analysis. To determine the grid in the case of harmonic.

ATMEL单片机开发的MP3及U盘代码 -ATMEL developed single-chip MP3 and U disk code

单片机KeilC学习例程，不需要数点基础，可以掌握C51的使用-Microcontroller KeilC learning routines, no basis for a number of points, you can master the use of C51

串行通信芯片SCC2692驱动源程序(C51)-serial communications chips SCC2692 driver source (C51)

NEC公司的ASSP芯片pdf文档，用于步进电机和直流电机的PWM控制，支持与51单片机通信。-NEC corporation，ASSP chip，datasheet，pdf，function is control the motor,using step control or PWM control.

c8051f340 silcon实验室

这是一个单片机上控制MAX7219的驱动子程序，用C语言编写。-This is a single-chip control MAX7219 driver subroutine, using C language.

线性光耦合器的简单介绍。-linear optocoupler brief.