Gravitational_Search_algorithm

说明：  this paper is about multilevel inverter structure

Numerical Relays Documents

说明：  集成vco，adf4350 adf4351 驱动程序(Integrated vco, ADF4350 adf4351 driver)

An exception that indicates that garbage-collector is finalizing a database object that is not explicitly closed.

又一种抢答器的AT89S51程序， SW1 SW2 SW3 SW4 用数码管显示最先按下的按键 01 02 03 04 并点亮对应灯： D2 D3 D4 D5 显示2S后退出。 同时发出 “嘟”一声。(Yet another answering device AT89S51 procedures, SW1 SW2 SW3 SW4 with digital display by pressing the button the first 01 02 03 04 and light the corresponding lamp: D2 D3 D4 D5 Display 2S exit. Also issued a " beep" sound.)

PowerPCB/PADS封装库，原版安装后没有的，有常见的SO、SOIC、TSSOP等格式，省去自己画封装的麻烦(PowerPCB/PADS package library, after the original installation, and have common SO, SOIC, TSSOP and other formats, saved themselves the trouble of packaging draw)

基于StC89C52单片机的nRF24L01驱动及应用程序， 已经调试成功(Driver and application program of nRF24L01 based on STC89C52 MCU has been debugged successfully.)

DAC8571通过iic协议和msp430通信(DAC8571 communicates with MSP430 through IIC protocol)

stm32-超声波避障 联合开发网 - pudn.com

基于stm32的飞行器代码，用遥控器可以实现对飞行器控制飞行，可以通过GPS进行定位.(Stm32 code based aircraft, with a remote control can be achieved on aircraft flight control, can be located by GPS.)