FM25CL64

利用单片机作为芯片，利用点阵按钮通过继电器控制LED灯(Using single chip microcomputer as a chip, using bitmap button by relay control LED lights)

AT89C51控制步进电机，实现正反转加减速，驱动芯片是ULN2803.(AT89C51 control the stepper motor to achieve reversing acceleration and deceleration, the driver chip is the ULN2803.)

AGV小车上位机控制程序,通过TCP/IP协议来进行数据的传送(AGV car PC control procedures, through the TCP/IP protocols for data transmission)

说明：  下面的程序利用友元函数求两点间的距离。请你将有关的程序补充完整，并总结为什么这里要用友元函数来求两点间的距离。(using friend to get the result.)

说明：  本PDF文件为市电电压频率测量计的设计说明书！从中能了解相关的电路设计(The PDF file is mains voltage frequency meter design manual! From which to understand the relevant circuit design)

说明：  红外接收相关资料，很值得一看，是初学者学习的绝好资料(Infrared receiver information, it is worth a visit, is an excellent information for beginners to learn)

COM reference for farPoint Spread 7.0

NPN silicon planar epitaxial transistor encapsulated in a SOT223 surface mounted envelope and designed primarily for use in hand-held radio equipment in the 470 MHz communications band.

高精度电压表(24bit) VB源程序,简单修改可实现多量程(precision voltage (24bit) VB program, a simple change can be realized more range)

本总体方案完成国标GB20600-2006数字电视地面广播传输系统基带部分功能。 输入数据码流经过扰码器（随机化）、前向纠错编码（FEC），然后进行比特流到符号流的星座映射，再进行交织后形成基本数据块，基本数据块与系统信息组合（复用）后并经过帧体数据处理形成帧体，帧体与相应的帧头（PN序列）复接为信号帧（组帧），经过基带后处理转换为输出信号（8MHz带宽内）。该信号经变频转换为射频信号（UHF和VHF频段范围内）。用C程序设计了图形交互界面，可以在界面上直接设置调制参数。(The overall program completion GB GB20600-2006 digital terrestrial television broadcasting transmission systems baseband function. The input data stream through the scrambler (randomization), forward error correction (the FEC), then the symbol constellation mapping bitstream to the stream, and then after forming the basic block interleaving, the basic data block and information combined system ( multiplexing) after data processing and after the frame body forms a frame body, frame body with a corresponding header (PN sequence) multiplexed signal frame (framing), after post-processing baseband signal is converted to an output (internal 8MHz bandwidth). The signal is downconverted to a radio frequency signal (in the VHF and UHF frequency range). C program designed graphical interface, you can set modulation parameters directly on the screen.)