4X4硅胶键盘的原理电路和键盘扫面使用的程序

本文介绍了电流／电压转换芯片MAX472在直流电动机监测系统中的应用-This paper introduces the current/voltage converter MAX472 chip in DC Motor Monitoring System

四川大学唐宁九的计算机课件，PPT，很有用，请初学者学习。-Sichuan University, Downing nine computer courseware, PPT, very useful, please beginners to learn.

带余弦预滤波和补偿滤波的抽取滤波器　设计方案-Pre-filtering with a cosine decimation filter and compensation filter design

This schematic and Gerber files of PCB that is used for GSM alarm system. This is industrial-grade system with many features like 1-wire (iButton) interface, additional interface for video camera (UART JPEG camera is used), SD card to store pictures from camera and send them by GSM to remote mobile phone. Can be used as a reference design for anyone who wants to make own GSM alarm system system based on SIM300C module from Simcom.-This is schematic and Gerber files of PCB that is used for GSM alarm system. This is industrial-grade system with many features like 1-wire (iButton) interface, additional interface for video camera (UART JPEG camera is used), SD card to store pictures from camera and send them by GSM to remote mobile phone. Can be used as a reference design for anyone who wants to make own GSM alarm system system based on SIM300C module from Simcom.

智能电池充电电池管理芯片CS0301.内容非常全。可以给一般理电池和非理电池。-Intelligent battery charging battery management chip CS0301. Very wide. Can give a general rationale for the battery cell and non-justification.

this document is very important for vhdl code

protues仿真51芯片的例子，包括液晶显示，LED显示，以及源代码-protues 51 chip simulation examples, including LCD, LED display, as well as source code, etc.

3digit UpDown16f84 counter

fhfgg FG s g GSFGF fgs gfg公司

关于lpc2214远程IAP升级程序的方法-about update your program by IAP