步进电机控制

6排4位数码管带6个按键的计数器，用AVR控制，是一个很经典的程序，里面很多东西是很有用的-6 row four digits of the counter with six buttons, with AVR control, is a very classic program, which is very useful to a lot of things

The PCF7991AT is a fully integrated Advanced Basestation IC, ABIC, designed for car immobilizer systems providing read and write access to an identification transponder. The device is intended for use with the NXP transponder family (PCF79xx) as well as other transponder types operating at 125 kHz and employing ASK, Amplitude Shift Keying for write and AM/PM for the read operation. The receiver characteristics (amplifier gain,filter cutoff frequencies) can be optimized to system and transponder requirements. The PCF7991AT IC is designed for easy integration into immobilizer read/write and read-only systems featuring a high degree of integration and very low external component count. The device integrates a powerful antenna driver/modulator, a low-noise adaptive sampling time demodulator, programmable filters/amplifier and digitizer, required to design high-performance basestations. A three wire microcontroller interface is provided for programming the PCF7991AT as well as for th

应用背景 GPS模块接收GPS定位数据，用51单片机进行解析，然后用12864液晶进行显示经纬度高度等位置信息 GPS模块与51单片机之间进行串口通信，通信的参数程序中已经注释写出 关键技术 GPS接收卫星数据，GPS模块与单片机之间的串口通信 12864液晶分页显示程序，51单片机解析GPS数据 51单片机串口通信程序

mm36sb020存储器读写-mm36sb020 Memory Reader

本系统以AT89C51为控制核心，由矩阵键盘输入，LED倒计时、交通灯显示等模块组成，模拟了一个交通灯控制系统。系统除基本交通灯功能外，还具有通行时间手动设置、可倒计时显示、急车强行通过、状态切换等相关功能。包括报告提供。-AT89C51 for the control of the system core, from the matrix keyboard input, LED countdown, traffic lights displays modules, to simulate a traffic light control system. In addition to basic traffic light system functions, but also has the passage of time to manually set to countdown show, worry about car forced through, the state switching and other related functions.

看完三幅mp3电路原理图，你就可以自己在家DIY自己的mp3了，试试吧，此图来自于mp3生产厂家。-three mp3 reading circuit schematics, you can own their own home DIY mp3, try playing this map from MP3 manufacturers.

描述： 这个项目是设计启用 FPGA 板交流构筑设备通过板载以太网连接的界面。岗位职责： 设计的 10Base T 以太网 MAC 一直做的 verilog 和执行相同的 onSpartan 3E FPGA 板。

收发信机的 CC2500 示例代码。这将会发送数据包中包含的长度和"你好"。每个 400ms，然后进入接收模式。 SPI 的硬件： MISO -> 12   MOSI -> 11  SCLK/SCK -> 13  CSN/SS - > 10

这个程序是一个使用C语言编写的程序，是一个能够实现串口用printf形式输出内容的源程序。这个程序可以让你像printf一样输出内容

&我的项目是RFID门锁系统。这个系统是用来打开门与RFID传感器。什么时候你要开门，就必须把射频识别卡放到门上接受者ARM控制器读取卡中的数据，检查卡中的代码，比较eeprom中的用户代码和卡中的代码是否正确是的，门会为这个人打开的。