el817

語音的16bit PCM Data 轉成PWM方式輸出(Voice of 16bit PCM Data converted into PWM mode output)

/*题目内容：有n件产品，编号分别为0,1,2,3,4,5,6....n-1，它们的重量分别是a[0],a[1],a[2]......a[n-1],它们的价值分别是b[0],b[1].....b[n-1],现在给你个承重为w的背包，如何让背包里装入的物品具有最大的价值总和？ */ (this is a program that may help you do something )

AVR单片机数据手册 包括MEGA8 16 32 64 128都有 很全 中文版(AVR microcontroller data sheet includes MEGA8 16 32 64 128 has a full Chinese version)

extra information on DDS technology

STM32单片机开发例程，这里是外部中断的开发例程(STM32 MCU development routines, here is the development of the external interrupt routine)

自动寻找指定WIFI ssid并填入密码，自动打开wifi连上网。(Automatically find WIFI specified ssid and fill in the password, automatically open WIFI even surf the Internet.)

Arduino Nano板控制RF2051混频器，设置频点功能，用Aruino标准库的IO口控制(Arduino Nano board control RF2051 mixer, set the frequency function, with Aruino standard library IO port control)

Transporting Voice by Using IP

atmega128 的相关例子，有led灯，ＡＤ采集等相关的程序．(Several examples ATmega_128_ common procedures, such as light water ad)

基于r7f0c809单片机的便携式电源，可以给手机等消费电子产品充电，具有过电流、过电压、过温保护功能。(The portable power supply based on r7f0c809 MCU can charge mobile phones and other consumer electronic products, and has the functions of over-current, over-voltage and over-temperature protection.)