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ds18b20+1602 温度传感器原创代码，1602显示(Temperature sensor original code, using 1602 display .)

读写器与射频卡通信的设计采用RC522射频读写芯片与射频卡进行通信，符合ISO14443规范协议；硬件系统设计中主要有AVR单片机主控模块、电源模块、存储模块、外部时钟模块、LCD模块；软件系统设计采用C语言，遵循模块化和结构化编程模式，设计了射频卡操作程序、软关机与自动关机程序、LCD显示、串行Flash存储器、外部时钟等外部设备驱动程序。所设计的手持式读写器具备对MF1 S50、S70射频卡的读写、实时状态显示、系统在线升级以及关机等功能。(This handset can process the data offline or online, reading and writing from 10 cm far. This handset is low-power, miniature, modular design and so on. This article includes: the communication design between RF card and Reader, hardware system design and software systems design. The communication design between RF card and Reader used to RC522 RF chip control RF cards, in line with ISO14443 standard protocol Hardware system design mainly include AVR microcontroller control modules, power modules, memory modules, external clock modules, LCD modules Software system designed with C programming language, and follow the modular structure of the programming model, and has the RF card operation procedures, soft shutdown and automatic shutdown procedures, LCD display, serial Flash memory, an external clock, and other external device driver Procedures. The handset readers has the MF1 S50, S70 RF card reader function, real-time status display function, the system online update function and so)

这是一个关于51单片机的交通控制灯且不加蜂鸣器的控制程序(This is a traffic control lamp based on 51 Singlechip)

基于8051单片机的USB软件狗的原理图及PCB(Based on 8051 USB dongle schematic and PCB)

本程序是自己制作的一种4位数码管模块的内部程序，该模块用于大屏上动态数据的显示，通过RS485接口为其传送待显示数据，芯片是89C2051(This program is a four to produce their own digital control module' s internal procedures, the module for large-screen display of dynamic data, transmitted through the RS485 interface for data to be displayed, the chip is 89C2051)

理想隔离变压器的特性,作者：QQ 64134703 ，电子毕业设计，欢迎咨询 (The characteristics of the ideal isolation transformer, the author: QQ 64134703, e-graduate design, please consult)

利用单片机MSP430f149单片机实现的 实验十二 SPI接口扩展RF通信(The use of single-chip MCU MSP430f149 Experiment 12 SPI interface extensions RF communications)

NRF24L01基于AT89S52的无线开发代码，用于控制接收与发送数据，用于无线通信(NRF24L01 wireless development code, based on AT89S52 is used to control the sending and receiving data, used for wireless commu)

变压器绕组变形在线监控中考虑套管的影响，有FEM模型的建立和仿真实例(Detecting the early signs of mechanical failures of power transformer winding is necessary and is possible with online monitoring techniques. Online impulse frequency response analysis (IFRA) is a promising diagnostic method when a transformer is in service)

AVR单片机实现RTL8019AS的UDP通讯，由UIP修改而来。(UDP by MCU(AVR))