图形点阵型LCD控制芯片ST7565R驱动程序，点亮全屏，并显示相关图片信息，已通过测试...

基于C51单片机的PPOE协议栈源代码。-C51 microcontroller based on the PPOE protocol stack source code.

基于中断控制的声光报警器的设计.采用中断方式，设计一个声光报警器的硬件电路和控制程序。程序运行时，一旦8位开关信号量状态满足设定条件，就触发中断，使发光二级管按规律闪烁，同时扬声器播放一段音乐。 硬件设备包括一台微机、一个MFID微机实验箱、一块T型板，2输入四与门 74ls08、8位总线驱动器 74ls245、LM386A音频放大器、排阻、扬声器各一个，发光二极管8个，470uF电容2个、104电容4个，插线若干。 -Interrupt-based control of sound and light alarm design. Using interrupt mode, designing a sound and light alarm hardware circuits and control procedures. The program is running, once the 8-bit switch signal to set the amount of state to meet the conditions to trigger interrupts, so that light-emitting diode flashes according to the law, while speakers play a piece of music. Hardware includes a computer, a computer simulation, MFID box, a T plate, 2 input 4 and gate 74ls08, 8-bit bus driver 74ls245, LM386A audio amplifier, exclusion, speakers of a light-emitting diode 8, 470uF capacitor 2 a, 104 capacitors 4, plug-line number.

485通讯的底层驱动,完成485网络数据收发功能-The bottom of drive 485 to complete the network data transceiver function 485

philips系列lpc21xx产品的SD卡读写demo-philips series lpc21xx Product demo of the SD card reader

本程序是基于89C51的足球换人牌的功能实现-This procedure is based on the 89C51 football Substitution realization of the function card

利用8051单片机驱动蜂鸣器，实现音乐发声功能。-8051 drivers to use buzzers realize music vocal function.

用步进电机画图的完整原代码，集成50多种图形-Stepper motor used to draw a complete source code, integrated more than 50 kinds of graphics

STM32 I2C 例程，开发环境为KEIL for arm,并带Proteus仿真-STM32 I2C routines

液晶JCM12864M的中文技术手册，调试通过绝对正确的C代码，请大胆使用-LCD JCM12864M Chinese technical manuals, commissioning through the absolutely correct C code, making bold use of

使用串口通信和汇编控制单个步进电机，串口部分可以使用串口调试助手-The use of serial communication and the compilation of a single stepper motor control, serial port can use the serial debug some assistants