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本文包括红外发射和接收模块，以及和他们相关的资料信息 (In this paper, including the infrared emission and receiving module, and their related information)

激光切割上位机源码，生成NC刀路，不含NC扩展插件。(Laser cutting the host computer source code, generate NC knife road)

c51单片机的sle4442卡的读写加密验证程序 已通过(c51 microcontroller sle4442 card reader encrypted authentication procedure has been adopted)

说明：  430里示例程序中的一个,对初学者来说,是一个很好掌握430 的一个好程序(430 procedures in a sample, for beginners, it is a very good grasp of a good procedure 430)

智能追踪小车，并且可以用遥控手动控制转弯加前后左右(Intelligent tracking car, and can be controlled manually with the remote turn around Canada)

max7219，利用51单片机控制，点阵显示(max7219, 51 single-chip control, dot matrix display)

STM32单片机freemodbus的移植，主从机的都有(1, transplant FreeModbus1.5 and RT-Thread1.1.1 to STM322, development platform supports Eclipse, Keil, IAR3, can be used in the Eclipse plug-in version management EGIT 4, support Modbus RTU (ASCII untested))

CD4051/CC4051是单8通道数字控制模拟电子开关，有三个二进控制输入端A、B、C和INH输入，具有低导通阻抗和很低的截止漏电流。(CD4051/CC4051 is single channel 8 digital controlled analog electronic switch, there are three binary control input A, B, C and INH input, has low conduction resistance and very low by leakage current.)

本程序实现基于单片机的自动电阻测试，包括AD芯片的使用和继电器的控制。(This procedure to achieve automatic resistance measurement based on single chip microcomputer, control and relay includes a AD chip.)

PROFIBUS调试助手ProfiAssistV2.40(PROFIBUS debugging assistant ProfiAssistV2.40)