温度传感器DS18B20测温+显示+键盘，里面包括KEIL文件和PROTEUS仿真文件...

AVR学习资料，AVR学习入门的好帮手，里面有详细的说明

光电鼠标的电路图，很好的，多多交流学习-Circuit diagram of optical mouse, very good, a lot of exchange of learning

CPU为CSP8051F020，有两个串口和一个SPI口。 一个串口通过数传电台和中控室计算机通信 另一个串口和PLC的MODBUS口通信。 SPI口控制数码管的显示。 已经在工程上应用。-CPU for CSP8051F020, two serial and one SPI mouth. A serial data transfer through the radio and the computer control room of another serial communications and MODBUS PLC Communication. I SPI digital control of the show. In engineering applications.

座机短信发送平台，LCM显示发送和接受号码显示源程序。LCM1206类型-jet sent SMS platform, LCM revealed sending and receiving numbers indicate the source. LCM1206 types

射频卡资料，对射频卡分类、应用、开发工具等都有较为详细的介绍。-RF card, RF card classification, applications, development tools, and others have a more detailed introduction.

基于AVR单片机的触摸屏控制程序，无需触摸屏驱动芯片也可使用触摸屏。-AVR MCU-based touch-screen control procedures, without a touch screen driver chips can also use the touch screen.

4442逻辑加密IC卡读写底层C51程序，-4442 encryption logic IC Card Reader bottom C51 procedures,

该程序为基于51单片机的接口和片外应用的代码，在设计51单片机时可供参考，代码包括RS232通信、I2C、SPI、单总线、CAN总线、键盘、LED、LCD、AD/DA等应用。各工程在Keil调试通过，喜欢的朋友可供参考。-The program is based on the 51-chip microcontroller interface and application code, in the design of microcontroller 51 when the reference code, including RS232 communication, I2C, SPI, single-bus, CAN bus, keyboard, LED, LCD , AD/DA applications. Keil debugging the project passed, like a friend for reference.

独立式按键扫描并在一个LED数码管上显示相应的编号。-Stand-alone scan button and a LED digital tube display on the corresponding number.

这是24c02通用IC卡的驱动， 是我自己写的，并已经测试通过-24c02 this the definitive driver IC card, I wrote it myself, and has been tested through