u盘固件源代码，很不容易找到的，分享一下

用VB编写的串口数据采集的程序，是个比较典型的小例子 485通讯协议-Visual Basic and Com Comunicaition

该设备是一款基于AVR mega16L单片机的电子书阅读器，它除具有传统的阅读电子资源功能外，还能通过PS2接口与PC键盘连接，使用普通PC键盘输入信息，进行文本录入；使用LCD12864液晶作为显示器，它还可以用VB专门为之编写的下载软件通过串口下载TXT格式的文本资源。电子书资源存储在AVR公司生产的AT45DB021B闪速存储器，它有2M存储空间，可满足一般用户需要，当然也可升级为大容量存储器。 该设备功能强大，将电子书阅读器发挥到了极致，能满足用户特殊需要。 -The device is a single chip based on the AVR mega16L e-book reader, which in addition to the traditional functions of reading electronic resources, but also through the PS2 interface to connect with the PC keyboard, use an ordinary PC keyboard input information, the text input use LCD12864 LCD as a display, it can be prepared by specialized VB download software through the serial port to download TXT format text resources. E-book resources are stored in the AVR produced AT45DB021B flash memory, it has 2M storage space to meet the needs of general users, of course, can also be upgraded to a large-capacity memory. The device is powerful and will play an eBook reader to the extreme, and to meet the special needs of users.

温控程序，利用PIC单片机产生PWM波形调整风扇转速，采用了PID算法，能较好的实现温控功能，温度能稳定在预设点，也可以由主机端串口实现温度设定，带Proteus仿真 ，对初学PIC单片机者有一定帮助-temperature controll system,controll signal is PWM generated by PIC MCU,the system work well,this program is helpfull for new designer off PIC MCU

基于51系列的电子锁设计方案，包含程序，pdf文件-Based on the 51 series of electronic lock design options, including procedures, pdf file

INA128/INA129精密低功耗仪表放大器的详细中文资料及经典电路例子-INA128/INA129 precision low-power instrumentation amplifier中文detailed information and examples of the classic circuit

在proteus可以实现国际象棋功能！！ ！1-Proteus can be achieved in the chess features! ! ! 1

供C51单片机初学C语言的朋友学习使用的演示程序-C51 single-chip C for beginner friends learning to use language demo program

电子屏字符显示器 电子设计， 解释清楚，一看即懂，简单明了 -E-Screen Character Display Electronic Design, explain clearly that one look to understand, simple to understand

本文详细介绍了4×4矩阵式键盘识别技术，内含详细的电路图和C51源代码。-This paper describes a 4 × 4 matrix keyboard recognition technology, and contains detailed schematics and source code C51.

这个是AM51S开发板的专用温度测试程序！-This is a dedicated development board AM51S temperature testing procedures!