NE5532+ TDA2030 Schematic and PCB

一个完善的单片机tcpip实现,包括http/tftp/pop3/smtp,开发环境是富士通的16位单片机-a perfect realization of SCM TCPIP, including http/tftp/pop3/smtp, development environment is Fujitsu"s 16-bit MCU

HT93LC46EEPROM 是Holtek 制造的1K 位系列的EEPROM（电子可擦除只读存储器），一般 它用于微控制器的固定数据的存储。在本文中，我们将以Holtek 公司8 位微控制器HT49 系列为例，介绍该芯片常用的操作功能代码。用户只需把代码加到程序中，并且在使用HT93LC46 之前将引脚CS/SK/DI/DO 连接即可。-HT93LC46EEPROM is a 1K-bit Holtek manufactured series of EEPROM (electronic erasable read-only memory), general micro-controller is used to store fixed data. In this article, we will Holtek" s 8-bit microcontroller HT49 series, for example, the introduction of the chip code commonly used operating functions. Users simply add the code the program, and before the use of HT93LC46 pin CS/SK/DI/DO connection is needed.

DTMF双向收／发集成电路MT8880专门为双音频信号的收、发而设计，它既能产生发送双音频信号，又能对双音频信号进行接收译码，还能判断各种信号音(拨号音、回铃音、忙音)。以上就是它的应用电路和程序-Two-way DTMF collection/fat MT8880 IC specifically for the dual audio signals received, the design, it could have sent dual audio signal, while the dual audio signal decoding receiver, but also to judge the sound signal (dial tone , ring back tone, busy tone). Above is its application circuit and procedures

在keil c51 环境下利用中断方式查询 键盘并实现键值查询等功能-Keil c51 environment in the use of the keyboard interrupt inquiries and realize the functions of key inquiries

单片机设计的遥控电路，遥控码的脉宽数用红外线接收器解码后送单片机读入，发射时由单片机产生40KHZ红外调制信号送红外线发射管发射-Single-chip design of the remote control circuit, remote control code number of the pulse width decoder using infra-red receiver to read single-chip evacuation, launch generated by single-chip modem 40KHZ IR signal sent to the launch tube fired infra-red.

用最新的32位微控制写的原装LCD＋LED程序-With the latest 32-bit micro-control to write the original LCD LED process

这是我在其它网上找到的，是基于ATMEG8单片机的小机器人，名字叫ASURO，很多地方有卖的，这个程序是可以自动寻找轨迹，对初学者是有帮助的。-This is what I found in other online, is based on a small microcontroller ATMEG8 robot named ASURO, are sold in many places, this program is automatically look for tracks, is helpful for beginners.

P串行实时时钟芯片DSl302程序设计中的问题与对策-P serial real-time clock chip DSl302 program design problems and countermeasures

计算一个矩阵中的水仙花素，不过使用前先建一个txt文件，里面输入一个矩阵-Calculation of a matrix in the Su-daffodils, but before using to build a txt file, inside the importation of a matrix

串行通讯_查询方式_switch处理 有详细的文字字说明 方便使用者修改-Serial communication means _ _switch handle inquiries have detailed user-friendly text words modify