用IO口模拟串口

数码管及键盘管理--Manage digital tube and keyboard.

基于AT89C52和DS3904的程控放大器原理及实现.pdf-Based on AT89C52 and the DS3904 and realize the principle of program-controlled amplifier. Pdf

MC2002 or HG6102 Handheld terminal API document

ATmega48-88-168_中文说明书，是由datasheet翻译的，准确度很高，适合阅读英文datasheet比较吃力的人学习。-ATmega48-88-168_ Chinese manual is translated from the datasheet, high accuracy, suitable for reading in English datasheet relatively difficult to learn.

ps2鼠标驱动程序-ps2 mouse driver

这个是个键盘密码锁的程序。但是要真的用的话，给我信，我这个是个例程，先不能直接用-This is a keypad lock program. But we really want to use the words, give me the letter, I am this is a routine, first can not be directly used

在lpc1758上面进行lwip的不加系统的移植，实现tcp和uart的相互传输，可以从pc的网络终端写入数据传输到uart 然后在pc的串口终端显示，也可以从pc的串口终端写入数据，然后在pc的网络终端显示

模拟异步串行通信-simulation asynchronous serial communications

嵌入式应用程序开发入门 具体操作和源代码和图片-Embedded Application Development Introduction to the specific operation and the source code and pictures

小车循迹程序，利用51单片机和传感器实现小车自动转弯等功能。-Car tracking program, using 51 microcontroller and sensor to achieve car features such as auto-turn.