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88e6060以太网交换机开发资料，图纸，PCB，手册( 88e6060 Ethernet switch development information, drawings, PCB, manual)

survellance zip that consuot ve sourcecodes/documents. (upload 5 files, you can download 200 files). Webmaster will activate your member account after checking your files. If you do not want to upload source code, you can join the [VIP member] to activate your account.

You can use LSM6DS3 (3D accelerometer and 3D gyroscope) in NRF52832 (PCA10040 Dev Board). you can Check your current angle (degree) through your smartphone BLE monitor (nRF Toolbox for BLE application in playstore)(You can use LSM6DS3 (3D accelerometer and 3D gyroscope) in NRF52832 (PCA10040 Dev Board). you can Check your current angle (degree) through your smartphone BLE monitor (nRF Toolbox for BLE application in playstore) please open readme.txt in zip)

超声波测距，能够实现汽车防撞系统超声波的测距，完全由51单片机控制(Ultrasonic Ranging)

使用stm32在KEIL mdk 的环境下 实现压控增益，其中用的DAC7311芯片和OPA830运放(The use of STM32 to achieve the VCO gain in KEIL MDK environment, the use of DAC7311 chip and the OPA830 op amp)

这是基于开发板LPC1114的源码程序，是用C语言编写，用于实现系统定时器的配置同时它也是一个完整的模板，可以在此基础上添加其他程序用于开发板的学习，是一个完整的模板，可直接使用。(This is a source code program based on the development board LPC1114. It is written in C language. It is used to realize the configuration of the system timer. At the same time, it is also a complete template. On this basis, other programs can be added for the learning of the development board. It is a complete template and can be used directly.)

51单片机控制NAND Flash读写程序,编译环境vc++，可根据flash不同做稍加修改,即可实现功能要求(51 single-chip NAND Flash read and write procedures, compile environmental vc++, according to flash a little modified)

stm32f103 串口发送 adc采集的数据程序(stm32f103 serial send adc data acquisition procedures)

利用波恩近似的理论，仿真超声波经过夹杂缺陷的散射(Use Born approximation theory, simulation ultrasonic scattering through the inclusion of defects)

应用于电力系统距离保护中过渡电阻对差动电流保护的影响，通过对电容补偿的整定进而分析结果。(The protection applies to the transition resistance on differential current protection, through the tuning capacitor compensation and then analyze the results the power system.)